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DEEP DIVE 📚

Chronic Condition Special Needs Plans (C‑SNPs) continue to play an increasingly important role in the Medicare Advantage (MA) market. Designed for beneficiaries living with severe or disabling chronic illnesses, these plans offer tailored benefits, specialized care coordination, and enhanced disease management. Yet despite strong clinical demand, enrollment levels still lag far behind the true prevalence of chronic conditions nationwide.

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Understanding C‑SNPs and Who They Serve

C‑SNPs are Medicare Advantage plans specifically structured around chronic conditions that require consistent, specialized care. Enrollment is restricted to individuals formally diagnosed with the condition (or condition cluster) targeted by the plan.

C‑SNP members typically receive:

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CMS‑Approved Chronic Conditions for C‑SNPs

CMS authorizes C‑SNPs to focus on 15 chronic conditions, including:

While CMS maintains a broad list, individual C‑SNPs are designed around one condition or a closely linked cluster, not the entire set.

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Market Structure and Enrollment (2026)

As of March 2026, roughly 1.7 million Medicare beneficiaries are enrolled in C‑SNP plans. Notably 93% of all C‑SNP members are in plans serving cardiovascular disease, chronic heart failure, and diabetes.

Yet despite rapid growth, C‑SNP penetration remains low relative to disease prevalence, particularly in high‑burden states.

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Chronic Condition Prevalence Across the U.S.

Using data from the Chronic Conditions Data Warehouse (Medicare FFS-only, excluding MA due to claims limitations), national prevalence rates among Medicare beneficiaries were:

Broad regional patterns stand out - Southern and Eastern states consistently show higher prevalence across these conditions.

 States with highest diabetes prevalence: West Virginia, Mississippi, New York, Alabama, and New Jersey.

States with highest cardiovascular disease prevalence: Florida, Louisiana, Arkansas, Oklahoma, and New Jersey.

States with highest heart failure prevalence: Oklahoma, Alabama, Kentucky, Michigan, and Illinois.

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C‑SNP Enrollment Opportunity: Aligning Chronic Condition Prevalence with Market Penetration

So, what happens when we combine chronic condition prevalence and current C-SNP penetration? A clear pattern emerges.

Because diabetes has the highest national prevalence among the three conditions, we examined the ten states with the greatest diabetes prevalence.

New York, Maryland, New Jersey, and West Virginia stand out - with C‑SNP penetration below 1%, their significantly higher rates of diabetes and cardiovascular disease indicate that beneficiaries in these states are managing more complex chronic health needs. This suggests these markets may offer stronger C‑SNP growth potential than raw enrollment figures alone would indicate.

It is also important to note the contrast in overall penetration. C‑SNP plans represent just 2.4% of national Medicare Advantage penetration, compared with 31.1% for non‑SNP Individual Medicare Advantage plans.

Overall, while C‑SNP enrollment is growing faster than the broader Medicare Advantage market, current enrollment and penetration levels for plans serving diabetes, cardiovascular disease, and chronic heart failure remain far below the actual prevalence of these conditions. This gap represents a meaningful growth runway for health plans, distributors, and providers aiming to strengthen their C‑SNP strategies in 2026 and beyond.

If you’re ready, here are some ways we can help you: