D-SNP, C-SNP and I-SNP Agent Guide: Eligibility and Enrollment

Regulatory information reviewed July 2026.

Special Needs Plans, commonly called SNPs, are Medicare Advantage coordinated care plans designed for specifically defined populations. Enrollment is restricted to people who are dually eligible for Medicare and Medicaid, have certain severe or disabling chronic conditions, or are institutionalized or institutionalized-equivalent.

The three SNP categories are:

• D-SNP: Dual Eligible Special Needs Plan.
• C-SNP: Chronic Condition Special Needs Plan.
• I-SNP: Institutional Special Needs Plan.

SNPs can operate as HMOs, PPOs and certain other coordinated care plans. All SNPs must provide Part D prescription drug coverage and implement a CMS-approved Model of Care tailored to the population the plan serves.

Primary authority:

42 C.F.R. Section 422.2: View the official source

CMS Special Needs Plan overview: View the official source

The Three Questions Agents Must Answer Before Enrolling Anyone in a SNP

A client’s apparent eligibility is only the first step. A defensible SNP recommendation requires three separate findings:

1. Does the client meet the eligibility criteria for this exact plan benefit package?
2. Does the client have a valid election period for the proposed enrollment?
3. Does the plan fit the client’s providers, medications, Medicaid arrangement, facility and actual care needs?

A client can qualify medically for a C-SNP and still lack required verification. A client can have Medicaid and still be in a category that a particular D-SNP does not accept. A person can be temporarily receiving care in a skilled nursing facility and still fail the 90-day institutional standard.

For the enrollment-window side of the analysis, use the 2026 Medicare SEP field guide for agents. Once eligibility is established, apply the doctors-first Medicare plan comparison workflow and the 2026 Part D drug review workflow before comparing supplemental benefits.

If a plan-specific phone conversation becomes an enrollment call, keep the SNP analysis separate from the telephonic enrollment recording workflow. The recorded business line for Medicare agents gives agents an organized path for recordings, Scope of Appointment records, consent records, and enrollment-related documents.

The practical rule is simple:

D-SNP, C-SNP and I-SNP Quick Comparison

CMS’s enrollment rules require a person to satisfy the requirements for the specific SNP, not merely a general definition of a special needs individual. The current C-SNP and I-SNP verification provisions, and the revised dual/LIS election rules, make plan-specific verification especially important.

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What All Three SNP Types Have in Common: The Model of Care

Every SNP must operate an evidence-based Model of Care, or MOC, designed for its target population. Among other requirements, the plan must:

• Conduct a comprehensive initial health risk assessment within 90 days before or after a new enrollee’s effective date.
• Conduct another comprehensive assessment annually.
• Assess physical, psychosocial and functional needs, along with issues such as housing stability, food security and transportation access.
• Address assessment results in the enrollee’s individualized care plan.
• Use an interdisciplinary care team.
• Make multiple nonautomated attempts to reach an enrollee who has not responded to assessment outreach.

These requirements matter to agents because the client’s experience does not end when CMS accepts the enrollment. A beneficiary may receive calls and letters from the plan shortly after enrollment. Preparing the client to recognize and answer that outreach can materially improve the plan’s ability to coordinate care.

Authority:

42 C.F.R. Section 422.101, subd. (f): View the official source

CMS Model of Care information: View the official source

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Part One: D-SNP Agent Guide

What Is a D-SNP?

A Dual Eligible Special Needs Plan is a Medicare Advantage plan for people who qualify for both Medicare and qualifying medical assistance under a state Medicaid plan.

A D-SNP must coordinate Medicare and Medicaid services and have a formal contract with the applicable state Medicaid agency. That State Medicaid Agency Contract, commonly called a SMAC or MIPPA contract, can establish:

• Which Medicaid categories the D-SNP may enroll.
• Which Medicaid services the organization covers or coordinates.
• Medicare cost-sharing protections.
• Medicaid eligibility-verification procedures.
• The applicable service area.
• Medicaid provider-information requirements.
• Other state-specific enrollment and coordination obligations.

That is why D-SNP eligibility cannot be determined from the word “Medicaid” alone. The client must be eligible for the particular D-SNP under the applicable state contract.

Authority:

42 C.F.R. Section 422.107: View the official source

CMS D-SNP information: View the official source

The First D-SNP Question Should Not Be “Do You Have Medicaid?”

Ask instead:

A client may have:

• Full Medicaid benefits.
• QMB protections without full Medicaid.
• A Medicare Savings Program that pays only a Medicare premium.
• Extra Help without Medicaid.
• A Medicaid category that one D-SNP accepts but another does not.
• Full Medicaid through a managed care organization that is not aligned with the proposed D-SNP.

The category affects eligibility, cost-sharing expectations, Medicaid services and whether the integrated-care SEP is available.

Common Dual-Eligibility Categories

The following table is a practical summary. State terminology, eligibility rules and D-SNP acceptance criteria can vary.

CMS’s current dual-category guidance explains that the categories are mutually exclusive and distinguishes full-benefit duals from partial-benefit duals. It also confirms that QMBs may not be billed for Medicare Part A or Part B deductibles, coinsurance or copayments.

Current CMS dual-category resource:

View the official source

The QMB Billing Rule Agents Should Understand

Federal law prohibits Medicare providers and suppliers from billing people in the QMB program for Medicare Part A and Part B cost-sharing. This protection applies to QMB Only and QMB Plus beneficiaries.

That does not justify telling the client that “everything is free.” The agent must still verify:

• Part D drug costs.
• Services excluded from Medicare or Medicaid coverage.
• Plan-specific supplemental-benefit limitations.
• Network requirements.
• Whether a particular service is covered by Medicare, Medicaid or both.
• The client’s exact Medicaid category.

A better explanation is:

CMS QMB resources: View the official source

D-SNP Eligibility Verification

Before processing a D-SNP enrollment, the plan must confirm both Medicare Advantage eligibility and Medicaid eligibility.

Acceptable Medicaid evidence may include:

• A current Medicaid identification card.
• A state agency letter confirming entitlement to Medicaid assistance.
• Verification through a state eligibility data system.

A current Extra Help or low-income subsidy status is not, by itself, acceptable proof of Medicaid eligibility for D-SNP enrollment. A general Medicaid-related flag in CMS systems is also not sufficient for the required initial or ongoing verification.

CMS CY 2026 Medicare Advantage and Part D Enrollment and Disenrollment Guidance:

View the official source

Practical D-SNP Verification Workflow

Before submitting the application, document:

1. The client’s Medicare number and effective dates.
2. The current Medicaid identification number.
3. The exact Medicaid category or dual-status code.
4. Whether the status is full-benefit or partial-benefit.
5. The client’s current Medicaid managed care organization, if any.
6. Whether the proposed D-SNP accepts that category.
7. Whether Medicaid MCO alignment is required.
8. Which document or system was used to verify eligibility.
9. The applicable election period and supporting facts.

Do not rely exclusively on the client saying, “I have Medicaid,” or showing an old card without confirming current status.

D-SNP Integration: Coordination-Only, HIDE and FIDE

Not every D-SNP integrates Medicare and Medicaid to the same degree.

Coordination-only D-SNP

A coordination-only D-SNP satisfies the applicable state-contract and coordination requirements but does not meet the higher HIDE or FIDE integration standards.

HIDE SNP

A Highly Integrated Dual Eligible Special Needs Plan operates with a qualifying capitated Medicaid contract that includes Medicaid long-term services and supports, behavioral health services, or both, subject to the regulatory requirements.

FIDE SNP

A Fully Integrated Dual Eligible Special Needs Plan provides access to Medicare and specified Medicaid benefits through an entity holding both the Medicare Advantage contract and the applicable Medicaid managed care contract. Current FIDE requirements include broad Medicaid benefit integration, aligned care management and exclusively aligned enrollment.

The FIDE or HIDE label can be valuable, but it does not replace normal plan comparison. The agent must still verify doctors, specialists, hospitals, prescriptions, pharmacies, authorizations, Medicaid providers and long-term-care arrangements.

Authority:

42 C.F.R. Section 422.2: View the official source

CMS D-SNP integration resources and current integrated-plan lists: View the official source

The Most Important Current D-SNP SEP Rule

Agents should no longer say:

Beginning January 1, 2025, the former quarterly dual/LIS SEP was replaced by two different pathways.

1. Dual/LIS SEP

The dual/LIS SEP generally allows an eligible full-benefit dual, partial-benefit dual or Extra Help-only beneficiary to make a once-per-month election to:

• Leave Medicare Advantage for Original Medicare and enroll in a standalone Part D plan; or
• Switch between standalone Part D plans.

It does not permit enrollment into an MA-PD plan or a switch from one MA-PD plan to another MA-PD plan.

Certain Part D at-risk or potential at-risk beneficiary rules can limit use of this SEP.

2. Integrated-Care SEP

The integrated-care SEP allows a full-benefit dual to enroll once per month in an eligible FIDE SNP, HIDE SNP or Applicable Integrated Plan when the beneficiary is already enrolled in, or is in the process of enrolling in, the D-SNP’s affiliated Medicaid managed care organization.

The SEP exists to create aligned Medicare and Medicaid enrollment. It is not a general monthly D-SNP shopping period.

CMS dual/LIS SEP job aid:

View the official source

Practical D-SNP Election-Period Script

A compliant explanation would be:

The client may also qualify through the Annual Election Period, Medicare Advantage Open Enrollment Period, initial election periods, a five-star SEP or another SEP based on the client’s circumstances.

D-SNP Scenario 1: QMB Only and a Large Allowance Benefit

Facts: Robert has QMB Only status. He is interested in a D-SNP advertising a substantial healthy-food and over-the-counter allowance.

Agent analysis:

• Confirm that the particular D-SNP accepts QMB Only.
• Do not treat QMB Only as full Medicaid.
• Confirm Robert’s provider and prescription coverage.
• Explain his QMB billing protection accurately.
• Determine whether he has a valid MA election period.
• Review the allowance’s eligibility rules, permitted purchases, frequency and expiration provisions.

Wrong approach: “You have Medicaid, so you qualify, everything is free and you can change plans this month.”

Better approach: “Your QMB status may qualify you for this D-SNP and protects you from Medicare Part A and Part B cost-sharing billing. The plan still has to verify your category, and we need to confirm the election period, providers, medications and benefit restrictions before enrolling you.”

D-SNP Scenario 2: Full Dual Wants to Switch D-SNPs Midyear

Facts: Angela is a full-benefit dual enrolled in a D-SNP. She sees an advertisement for another D-SNP with a larger monthly allowance and wants to switch immediately.

Agent analysis:

First determine:

• Her exact full-benefit category.
• Her current Medicaid MCO.
• Whether the proposed D-SNP is affiliated with that MCO.
• Whether she is willing and eligible to enroll in the affiliated MCO.
• Whether the proposed D-SNP is eligible for the integrated-care SEP.
• Whether another election period applies.
• Whether her physicians, behavioral health providers, prescriptions and Medicaid services will remain available.

Being a full dual does not, standing alone, create a general monthly right to switch between unrelated D-SNPs.

2027 D-SNP Alignment Rule: An Important Advance Warning

Beginning with plan year 2027, certain organizations offering both a D-SNP and an affiliated Medicaid MCO in the same service area must limit new D-SNP enrollment to individuals enrolled in, or in the process of enrolling in, the affiliated Medicaid MCO.

There are detailed applicability rules and exceptions, but the practical consequence is already clear:

Agents should begin treating “Which Medicaid health plan do you have?” as a standard fact-finding question rather than an afterthought.

Authority:

42 C.F.R. Section 422.514, subd. (h): View the official source

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Part Two: C-SNP Agent Guide

What Is a C-SNP?

A Chronic Condition Special Needs Plan restricts enrollment to Medicare Advantage-eligible individuals who have one or more severe or disabling chronic conditions targeted by that plan.

A C-SNP may focus on:

• One qualifying chronic condition; or
• A CMS-approved grouping of commonly co-morbid and clinically linked conditions.

The fact that a condition appears in the federal regulation does not mean every C-SNP accepts a person with that condition. The specific plan’s approved target population controls.

CMS’s Current C-SNP Chronic-Condition Categories

The current regulation contains 22 numbered categories. Agents should not rely on older training sheets that describe only 15 categories.

The current categories include:

1. Chronic alcohol use disorder and other substance use disorders.
2. Autoimmune disorders, including rheumatoid arthritis, systemic lupus erythematosus, psoriatic arthritis and scleroderma.
3. Cancer.
4. Cardiovascular disorders, including coronary artery disease, cardiac arrhythmias, peripheral vascular disease and valvular heart disease.
5. Chronic heart failure.
6. Dementia.
7. Diabetes mellitus.
8. Overweight, obesity and metabolic syndrome.
9. Chronic gastrointestinal disease, including chronic liver disease, nonalcoholic fatty liver disease, hepatitis B, hepatitis C, pancreatitis, irritable bowel syndrome and inflammatory bowel disease.
10. Chronic kidney disease, including dialysis or end-stage renal disease and CKD not requiring dialysis.
11. Severe hematologic disorders, including aplastic anemia, hemophilia, immune thrombocytopenic purpura, myelodysplastic syndrome, sickle-cell disease and chronic venous thromboembolic disorder.
12. HIV/AIDS.
13. Chronic lung disorders, including asthma, chronic bronchitis, cystic fibrosis, emphysema, pulmonary fibrosis, pulmonary hypertension and COPD.
14. Chronic and disabling mental health conditions, including bipolar disorder, major depressive disorder, schizophrenia, schizoaffective disorder, PTSD, eating disorders and anxiety disorders.
15. Neurologic disorders, including ALS, epilepsy, extensive paralysis, Huntington’s disease, multiple sclerosis, Parkinson’s disease, polyneuropathy, fibromyalgia, chronic fatigue syndrome, spinal cord injuries, spinal stenosis and stroke-related neurologic deficits.
16. Stroke.
17. Post-organ-transplantation care.
18. Immunodeficiency and immunosuppressive disorders.
19. Conditions associated with cognitive impairment, including Alzheimer’s disease, intellectual and developmental disabilities, traumatic brain injuries, disabling mental illness associated with cognitive impairment and mild cognitive impairment.
20. Conditions involving functional challenges that require similar services, including spinal cord injuries, paralysis, limb loss, stroke and arthritis.
21. Chronic conditions that impair vision, hearing, taste, touch or smell.
22. Conditions requiring continued therapy services to maintain or retain functioning.

The regulation contains the controlling language and complete subcategories.

Authority:

42 C.F.R. Section 422.2: View the official source

Approved Multi-Condition C-SNP Groupings

CMS may approve C-SNPs focused on these specific groupings:

• Diabetes mellitus and chronic heart failure.
• Chronic heart failure and cardiovascular disorders.
• Diabetes mellitus and cardiovascular disorders.
• Diabetes mellitus, chronic heart failure and cardiovascular disorders.
• Stroke and cardiovascular disorders.
• Anxiety associated with COPD.
• Chronic kidney disease and post-renal-organ transplantation.
• Substance use disorders and chronic mental health disorders.

For a C-SNP using one of these approved groupings, the beneficiary needs to have only one of the qualifying conditions in the grouping. The person does not need every condition named in the grouping. The agent must nevertheless confirm that the plan is actually approved for that grouping and that the client’s condition matches its eligibility criteria.

Authority:

42 C.F.R. Section 422.4, subd. (a)(1)(iv): View the official source

C-SNP Verification: The Agent Does Not Diagnose the Client

For C-SNP enrollment, the organization must contact the applicant’s current qualifying health care provider to confirm the condition. The provider may be a physician, physician assistant or nurse practitioner meeting the applicable requirements.

The plan can use one of two verification methods.

Method 1: Verification Before Enrollment

The plan contacts the current provider or provider’s office and obtains confirmation of the qualifying condition before enrollment.

Method 2: Pre-Enrollment Qualification Assessment Tool

The plan may use an approved pre-enrollment qualification assessment tool, often called a PQAT. The assessment may consider the person’s medical history, signs, symptoms and medications, but the information must still be confirmed by the current qualifying provider.

If the plan does not obtain provider verification by the end of the first month of enrollment, it must:

• Send the enrollee a disenrollment notice within the first seven calendar days of the second month; and
• Disenroll the person at the end of the second month.

If the plan obtains verification at any point before the end of the second month, it must maintain the enrollment.

Authority:

42 C.F.R. Section 422.52, subds. (f)-(g): View the official source

Practical C-SNP Intake Questions

Ask the client:

• What is the exact diagnosed condition?
• Who currently treats or manages that condition?
• Is that provider a physician, physician assistant or nurse practitioner?
• What is the provider’s correct phone and fax number?
• Has the provider diagnosed the condition, or does the client merely suspect it?
• Is the client willing to respond promptly to plan verification requests?
• Does the proposed plan target that exact condition or an approved grouping containing it?

Avoid questions that turn the agent into a clinician. The agent’s job is to gather accurate information and facilitate the carrier’s verification process, not to interpret symptoms or diagnose a disease.

The C-SNP SEP

A person with a qualifying severe or disabling chronic condition may use the C-SNP SEP to:

• Enroll in a C-SNP designed to serve people with that condition; or
• Move from one C-SNP to another C-SNP focused on a different qualifying condition the person has.

The SEP remains available while the person has the qualifying condition and ends when the person enrolls in the C-SNP.

When a person is enrolled based on a pre-enrollment assessment but is later found not to have the qualifying condition, the person receives a separate opportunity to enroll in another MA plan. Under current guidance, that period begins when the plan notifies the person of the eligibility failure and continues through the following two calendar months, unless an election is made sooner.

Authority:

42 C.F.R. Section 422.62, subd. (b)(13): View the official source

C-SNP Scenario 1: Diabetes Medication but No Confirmed Diagnosis

Facts: Denise takes metformin and says she has “borderline diabetes.” She wants to enroll in a diabetes C-SNP.

Agent analysis:

Metformin use is not, by itself, proof that Denise has diabetes mellitus. The medication may be prescribed for another indication, and “borderline diabetes” may refer to prediabetes rather than the qualifying diagnosis.

The agent should:

• Ask who currently treats the condition.
• Use the carrier’s approved qualification process.
• Avoid telling Denise that she is definitely eligible.
• Explain that the plan must obtain provider confirmation.
• Confirm a separate election period if the C-SNP SEP does not apply.

Wrong approach: “You take diabetes medicine, so you qualify.”

Better approach: “This plan is for people with a qualifying diabetes diagnosis. The plan will need to confirm the diagnosis with your current provider before or shortly after enrollment.”

C-SNP Scenario 2: One Condition in a Multi-Condition Plan

Facts: Samuel has documented chronic heart failure but does not have diabetes. A local C-SNP is approved for diabetes, chronic heart failure and cardiovascular disorders.

Agent analysis:

Under the special eligibility rule for an approved multi-condition grouping, Samuel may qualify based on chronic heart failure alone. He does not need all three conditions.

The agent must still:

• Confirm that the plan uses the CMS-approved grouping.
• Complete the plan’s eligibility workflow.
• Provide accurate provider information.
• Ensure verification is completed.
• Compare cardiologists, hospitals, medications and care-management features.

C-SNP Scenario 3: COPD Symptoms Without a Diagnosis

Facts: Linda has shortness of breath and uses an inhaler but cannot identify a provider who diagnosed COPD.

Agent analysis:

Symptoms and inhaler use are not sufficient for an agent to declare C-SNP eligibility. Linda may have asthma, COPD, another pulmonary condition or no confirmed diagnosis.

The application should not be positioned as certain to succeed. The plan’s approved assessment and provider-verification process controls.

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Part Three: I-SNP Agent Guide

What Is an I-SNP?

An Institutional Special Needs Plan serves eligible individuals who are institutionalized or institutionalized-equivalent.

The current rules recognize three I-SNP subtypes:

An FI-SNP must own or contract with qualifying institutions as required by the regulation, including each institutional facility serving its enrollees.

The 90-Day Institutional Standard

For I-SNP purposes, an “institutionalized” person is one who continuously resides, or is expected to continuously reside for at least 90 days, in a qualifying long-term-care setting.

Qualifying settings can include:

• Skilled nursing facilities.
• Nursing facilities.
• Intermediate care facilities for people with intellectual or developmental disabilities.
• Psychiatric hospitals or units.
• Rehabilitation hospitals or units.
• Long-term-care hospitals.
• Certain swing-bed hospitals.
• Other CMS-approved facilities providing comparable long-term services.

The person does not necessarily have to complete 90 days before enrolling. An expected stay or need of at least 90 days may satisfy the standard when properly documented. CMS guidance identifies possible evidence such as a state level-of-care assessment, current Minimum Data Set information or a facility letter supporting the expected length of stay.

Authority:

42 C.F.R. Section 422.2: View the official source

CMS I-SNP information: View the official source

Institutional-Equivalent Eligibility

An institutional-equivalent person lives in the community but requires an institutional level of care.

The level-of-care determination must be made through:

• The applicable state assessment tool; and
• An assessment performed by an impartial entity with the necessary knowledge and experience.

Where the state does not have a designated assessment tool, the assessment must use the methodology the state uses to determine Medicaid nursing-home level of care.

This produces an important agent rule:

Those facts may identify a potential IE-SNP candidate, but the required level-of-care determination still has to occur.

Assisted Living Does Not Automatically Mean I-SNP Eligibility

Living in an assisted-living facility, memory-care community or continuing-care retirement community does not, by itself, establish I-SNP eligibility.

The agent must determine:

• Whether the client meets the institutionalized definition or institutional-level-of-care standard.
• Which I-SNP subtype is being offered.
• Whether the residence is within the plan’s permitted service arrangement.
• Whether the facility is contracted with the FI-SNP, when applicable.
• Whether the plan can implement its Model of Care at that location.

Some community-based I-SNPs may restrict enrollment to residents of particular contracted assisted-living facilities or continuing-care communities. The residence and plan relationship therefore require plan-specific verification.

Open Enrollment Period for Institutionalized Individuals

The Open Enrollment Period for Institutionalized Individuals, or OEPI, is continuous while an eligible person:

• Moves into a qualifying institution.
• Resides in the institution.
• Moves out of the institution.

After the person moves out, the OEPI generally ends two months after the end of the month in which the move occurred.

During the OEPI, an eligible institutionalized person may generally enroll in an MA plan, change MA plans or return to Original Medicare, subject to applicable plan and MSA limitations.

Do Not Confuse I-SNP Eligibility With the OEPI

A person must still meet the particular I-SNP’s enrollment requirements. The existence of the OEPI does not prove that a particular I-SNP accepts the client, the facility or the client’s level of care.

The reverse is also important:

The OEPI is tied to the regulatory definition of “institutionalized.” An institutional-equivalent applicant may need another valid election period.

Authority:

42 C.F.R. Section 422.62, subd. (a)(4): View the official source

I-SNP Scenario 1: Twenty-Day Rehabilitation Stay

Facts: Thomas enters a skilled nursing facility after knee-replacement surgery. The discharge plan anticipates that he will return home in approximately 20 days.

Agent analysis:

Thomas does not become an I-SNP candidate merely because he is physically present in a skilled nursing facility. The expected duration is well below 90 days.

The agent should investigate whether another election period exists, but should not use the facility admission alone as proof of I-SNP eligibility or OEPI status.

I-SNP Scenario 2: Expected Long-Term Nursing-Facility Residence

Facts: Eleanor has entered a nursing facility, and the care team expects her to remain there permanently.

Agent analysis:

Eleanor may meet the institutionalized standard without waiting until day 90 because the expected residence exceeds 90 days.

Before recommending an FI-SNP, the agent should confirm:

• The facility is contracted with the plan.
• The facility’s physicians and clinicians participate appropriately.
• Eleanor’s specialists, hospital and prescriptions are covered.
• The plan can implement its Model of Care at the facility.
• The OEPI or another election period is available.
• The facility can provide any needed documentation.

I-SNP Scenario 3: Community Resident With Significant Care Needs

Facts: James lives with his daughter and requires extensive assistance with bathing, dressing, transferring and medication management.

Agent analysis:

James may be a potential IE-SNP candidate, but an agent cannot establish institutional-level-of-care eligibility from the family’s description.

The next steps are to:

• Confirm that an IE-SNP or HI-SNP is offered in the service area.
• Identify the plan’s approved assessment process.
• Arrange or facilitate the required impartial level-of-care assessment.
• Confirm an election period separate from the institutional OEPI.
• Compare home-based providers, prescriptions, transportation and caregiver-support services.

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A Practical SNP Plan-Comparison Checklist

A client who qualifies for a SNP is not automatically well served by every SNP available in the county.

Before enrollment, complete the following review.

1. Exact Plan Eligibility

Document the qualifying category, condition or institutional status. For a D-SNP, confirm the accepted Medicaid category. For a C-SNP, confirm the targeted condition. For an I-SNP, confirm the subtype, level of care and facility requirements.

2. Valid Election Period

Record the election period being used and the facts supporting it. Do not use a convenient SEP code simply because the enrollment system accepts it.

3. Primary Care and Specialists

Confirm the client’s primary care provider and each important specialist in the plan’s current directory or through another reliable carrier verification method.

For SNP clients, high-priority specialists may include:

• Cardiologists.
• Endocrinologists.
• Nephrologists and dialysis providers.
• Oncologists.
• Pulmonologists.
• Neurologists.
• Psychiatrists and behavioral health clinicians.
• Transplant specialists.
• Facility-based practitioners.

4. Hospitals, Facilities and Dialysis Providers

Check the hospitals the client actually uses, not merely the closest hospital. For an I-SNP, verify the facility relationship. For a D-SNP, verify Medicaid long-term-care and behavioral health arrangements when applicable.

5. Prescription Drugs

Review every medication for:

• Formulary coverage.
• Tier.
• Prior authorization.
• Step therapy.
• Quantity limits.
• Preferred pharmacy pricing.
• Part B versus Part D coverage.
• Insulin, injectable and specialty-drug rules.

6. Cost-Sharing by Eligibility Category

Do not show only the Summary of Benefits. Explain how the client’s exact Medicaid category affects expected cost-sharing, while avoiding promises that depend on continued Medicaid eligibility or state payment rules.

7. Medicaid MCO Alignment

For a D-SNP, identify the client’s current Medicaid managed care organization and determine whether the proposed Medicare and Medicaid coverage will be aligned or unaligned.

8. Prior Authorization and Referral Rules

A plan designed for a chronic or institutional population can still require referrals or prior authorization. Compare how those rules affect the client’s actual treatments.

9. Supplemental-Benefit Eligibility

Some supplemental benefits are available to all enrollees. Others may require a qualifying chronic condition, health-risk factor or other eligibility determination.

Review:

• Who qualifies.
• What can be purchased or received.
• How frequently the benefit renews.
• Whether unused amounts expire or roll over.
• Which vendors or locations accept the benefit.
• Whether the amount is monthly, quarterly or annual.

10. Care-Management Expectations

Explain that the SNP may contact the client for health-risk assessments, care-plan development and care coordination. Confirm the client’s preferred phone number, mailing address, language and authorized representative.

11. Continuity and Transition Risks

Consider what happens if:

• Medicaid eligibility changes.
• A chronic condition cannot be verified.
• The client leaves the institution.
• The facility terminates its plan contract.
• The client changes Medicaid MCOs.
• A physician leaves the network.
• The client moves out of the service area.

12. Client Understanding

CMS requires plans to ensure that required pre-enrollment topics are discussed, including providers, pharmacies, prescription coverage, costs, premiums, benefits and specific health needs. The goal is not merely a completed application. The client should understand why the plan was selected and how it will work.

Authority:

42 C.F.R. Section 422.2274: View the official source

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Common SNP Compliance Mistakes

Mistake 1: Treating Extra Help as Medicaid

Extra Help is a Part D low-income subsidy. Some Extra Help recipients are dual eligible, but Extra Help alone does not prove D-SNP eligibility.

Correction: Verify the Medicaid category through an acceptable source.

Mistake 2: Saying Duals Can Change MA Plans Every Month

That statement is no longer accurate. The monthly dual/LIS SEP is generally a Part D election pathway. Monthly D-SNP enrollment is available through the narrower integrated-care SEP only when its alignment requirements are met.

Correction: Identify the exact election period and permitted plan change.

Mistake 3: Saying Every D-SNP Client Has No Copays

Cost-sharing depends on the Medicaid category, state responsibility, plan design and service involved.

Correction: Explain the client’s category and QMB protections precisely.

Mistake 4: Assuming a Condition on the Federal List Qualifies the Client for Any C-SNP

The plan must target that condition or an approved grouping containing it.

Correction: Check the exact plan benefit package and carrier eligibility criteria.

Mistake 5: Treating Symptoms as a Diagnosis

Agents do not diagnose chronic conditions.

Correction: Use the plan’s approved provider-verification or qualification-assessment process.

Mistake 6: Assuming a Short SNF Stay Creates I-SNP Eligibility

Institutionalized status generally requires continuous residence or an expected residence of at least 90 days in a qualifying setting.

Correction: Confirm the documented expectation and plan requirements.

Mistake 7: Assuming Assisted Living Automatically Means Institutionalized

Assisted-living residence alone does not establish institutionalized or institutional-equivalent status.

Correction: Verify the I-SNP subtype, level of care and facility arrangement.

Mistake 8: Selecting a SNP Primarily for an Allowance

A supplemental allowance cannot compensate for losing a physician, hospital, prescription, dialysis provider, behavioral health provider or Medicaid care arrangement.

Correction: Complete the clinical, network, drug and Medicaid analysis before comparing optional benefits.

Mistake 9: Calling a $0 Premium Plan “Free”

CMS specifically prohibits using the word “free” to describe a $0 premium, a premium reduction, a low-income subsidy or cost-sharing associated with dual eligibility.

A more accurate statement is:

CMS permits the term “free” only in narrower circumstances involving benefits that have zero cost-sharing for all enrollees.

Authority:

42 C.F.R. Section 422.2262: View the official source

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What Happens When a Client Loses SNP Eligibility?

A client may lose SNP status because:

• Medicaid ends or changes to an unacceptable category.
• A C-SNP condition cannot be verified.
• The person no longer meets institutional requirements.
• The person leaves an eligible facility or service arrangement.

When a plan determines that an enrollee no longer meets its eligibility criteria but can reasonably be expected to regain eligibility within six months, the plan may deem the person continuously eligible for a period of at least 30 days and no more than six months.

The maximum six-month period is not guaranteed in every case. The applicable plan policy and circumstances control.

A person who loses special-needs status also receives an SEP to choose other coverage. That SEP generally begins in the month the status changes and ends when the person makes an election or three calendar months after the effective date of involuntary SNP disenrollment, whichever occurs first. A person found ineligible for a C-SNP after enrollment has the more specific C-SNP correction period described earlier.

Authority:

42 C.F.R. Section 422.52, subd. (d): View the official source

42 C.F.R. Section 422.62, subd. (b)(11): View the official source

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Frequently Asked Questions

What is the main difference between a D-SNP, C-SNP and I-SNP?

A D-SNP is based on qualifying Medicare and Medicaid status. A C-SNP is based on a severe or disabling chronic condition targeted by the plan. An I-SNP is based on institutional residence, an expected qualifying institutional stay or institutional-level-of-care status under an IE-SNP.

Can a client qualify for more than one kind of SNP?

Yes. A full-benefit dual living in a nursing facility may potentially satisfy D-SNP and I-SNP criteria. A dual-eligible client with chronic heart failure may also satisfy a C-SNP’s medical criteria.

The agent still has to determine which plan the client may enroll in, which election period applies and which plan best coordinates the client’s care.

Can someone enroll in a D-SNP with Extra Help but no Medicaid?

No. Extra Help alone does not satisfy D-SNP eligibility. The person must have qualifying medical assistance under the applicable state Medicaid plan and meet the particular D-SNP’s requirements.

Can a dual-eligible beneficiary change D-SNPs every month?

Not as a general rule. The monthly dual/LIS SEP does not permit MA-PD enrollment or MA-PD-to-MA-PD switching. A full-benefit dual may have a monthly integrated-care SEP for enrollment into an eligible integrated D-SNP when the Medicare and Medicaid managed care enrollment will be aligned.

Does a client need every condition named in a multi-condition C-SNP?

For a C-SNP using one of CMS’s approved multi-condition groupings, the client needs only one qualifying condition in the grouping. The agent must verify that the plan is approved for that grouping and complete the required condition-verification process.

Does a nursing-home resident automatically qualify for an I-SNP?

No. The person must meet the regulatory institutionalized standard, including the 90-day actual or expected residence requirement, and must satisfy the particular plan’s facility and enrollment criteria.

Can someone living at home qualify for an I-SNP?

Potentially. An IE-SNP can serve a community-dwelling person who requires an institutional level of care. The determination must use the state assessment method and be conducted by a qualified impartial entity.

Does qualifying for an IE-SNP automatically create the institutional OEPI?

No. The OEPI is tied to the regulatory definition of “institutionalized.” A community-dwelling institutional-equivalent applicant may need a different election period.

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The Practical Standard for a Good SNP Enrollment

A well-documented SNP enrollment should answer four questions:

1. Why is this client eligible for this exact plan?
2. What valid election period authorizes the enrollment?
3. Why does the plan fit the client’s providers, prescriptions, Medicaid arrangement, facility and care needs?
4. What post-enrollment verification or care-management steps must the client complete?

When those answers are clear, the enrollment is easier to explain to the client, easier to service after the effective date and easier to defend if the eligibility or recommendation is later questioned.

The best SNP recommendation should still make sense even if the largest advertised supplemental benefit is removed from the comparison.

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Primary Regulatory and CMS Sources

Special Needs Plan overview View the official source

42 C.F.R. Section 422.2 — Definitions View the official source

42 C.F.R. Section 422.4 — Types of MA plans and C-SNP groupings View the official source

42 C.F.R. Section 422.52 — SNP eligibility and C-SNP verification View the official source

42 C.F.R. Section 422.62 — MA election periods and SNP SEPs View the official source

42 C.F.R. Section 422.101 — SNP Model of Care View the official source

42 C.F.R. Section 422.107 — D-SNP state-contract requirements View the official source

42 C.F.R. Section 422.514 — D-SNP enrollment and 2027 alignment provisions View the official source

42 C.F.R. Section 422.2262 — Communications and marketing requirements View the official source

42 C.F.R. Section 422.2274 — Agent and broker requirements View the official source

CMS Medicare Managed Care Manual, Chapter 16-B — Special Needs Plans View the official source

CMS CY 2026 Medicare Advantage and Part D Enrollment and Disenrollment Guidance View the official source

CMS dual/LIS and integrated-care SEP job aid View the official source

CMS Dual Eligibility Categories View the official source

CMS QMB billing protections View the official source

CMS D-SNP integration information and current integrated D-SNP lists View the official source

CMS I-SNP information View the official source

Sources

• CMS Special Needs Plan overview: Centers for Medicare & Medicaid Services Accessed 2026-07-13.
• 42 C.F.R. 422.2 - Definitions: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.4 - Types of MA plans and C-SNP groupings: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.52 - SNP eligibility and verification: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.62 - Medicare Advantage election periods: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.101 - SNP Model of Care: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.107 - D-SNP state contracts: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.514 - D-SNP enrollment requirements: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.2262 - Communications and marketing: Electronic Code of Federal Regulations Accessed 2026-07-13.
• 42 C.F.R. 422.2274 - Agent and broker requirements: Electronic Code of Federal Regulations Accessed 2026-07-13.
• CY 2026 Medicare Advantage and Part D Enrollment and Disenrollment Guidance: Centers for Medicare & Medicaid Services Accessed 2026-07-13.
• CMS dual and LIS SEP job aid: Centers for Medicare & Medicaid Services Accessed 2026-07-13.
• CMS Dual Eligible Categories: Centers for Medicare & Medicaid Services Accessed 2026-07-13.
• CMS Qualified Medicare Beneficiary Program: Centers for Medicare & Medicaid Services Accessed 2026-07-13.
• CMS D-SNP integration resources: Centers for Medicare & Medicaid Services Accessed 2026-07-13.
• CMS Institutional Special Needs Plans: Centers for Medicare & Medicaid Services Accessed 2026-07-13.

Frequently Asked Questions

What is the difference between a D-SNP, C-SNP and I-SNP?

A D-SNP is based on qualifying Medicare and Medicaid status, a C-SNP is based on a severe or disabling chronic condition targeted by the plan, and an I-SNP is based on qualifying institutional residence or institutional-level-of-care status.

What does D-SNP stand for and who is eligible?

D-SNP stands for Dual Eligible Special Needs Plan. Eligibility requires Medicare Advantage eligibility plus a Medicaid category accepted by the specific D-SNP under its state contract.

Can someone enroll in a D-SNP with Extra Help but no Medicaid?

No. Extra Help alone does not satisfy D-SNP eligibility. The person must have qualifying medical assistance under the applicable state Medicaid plan and meet the specific D-SNP's requirements.

Can a dual-eligible beneficiary change D-SNPs every month?

Not as a general rule. The monthly dual and LIS SEP is focused on standalone Part D elections. The integrated-care SEP is narrower and requires an eligible full-benefit dual to align Medicare enrollment with an affiliated Medicaid managed care plan.

What conditions qualify a client for a C-SNP?

The client must have a severe or disabling chronic condition targeted by the specific C-SNP or one condition in a CMS-approved multi-condition grouping used by that plan. The plan must complete its required provider-verification process.

Does a client need every condition named in a multi-condition C-SNP?

No. For a C-SNP using a CMS-approved multi-condition grouping, the client needs one qualifying condition in that grouping, subject to the plan's verification process.

What are the eligibility requirements for an I-SNP?

The client must satisfy the specific plan's institutionalized or institutional-equivalent criteria. Institutionalized status generally requires residence or an expected residence of at least 90 days in a qualifying setting.

Does assisted living or a nursing-home stay automatically qualify someone for an I-SNP?

No. The agent must verify the regulatory status, expected length of stay or required level-of-care assessment, the I-SNP subtype, and the plan's facility relationship.

Can a client qualify for more than one type of Medicare SNP?

Yes. A client may satisfy more than one SNP category, but the agent must still verify the exact plan's eligibility rules, the available election period, and whether the plan fits the client's providers, drugs and care needs.