If you are living with diabetes, heart disease, COPD, or another long-term condition (learn more about medicare and assisted living: what's covered and what's not) (learn more about tax-free retirement income: complete guide) (learn more about can i lose money in a fixed annuity?) (learn more about medicaid and assisted living: eligibility and coverage by state), the plan you want is usually a Chronic Condition Special Needs Plan (C-SNP) — a Medicare Advantage plan built around one illness instead of the general population. For 2026, Kaiser Permanente and Aetna lead on quality scores (learn more about healthcare cost strategy guide), while Alignment Health leads on C-SNP selection with 19 chronic-condition plans. We ranked eight national carriers on CMS Star Ratings, C-SNP footprint, condition-specific benefit design, and drug coverage. One caveat worth knowing up front: every plan below is sold county by county, so what matters most is which of these carriers actually serves your ZIP code.
What a C-SNP Actually Is
A C-SNP is a Medicare Advantage plan restricted to people with a specific chronic illness. Because everyone in the plan has the same condition, the benefits can be built for it — a diabetes C-SNP might waive copays on insulin and test strips, cover podiatry and eye exams more generously, and assign a care coordinator who knows the condition.
CMS has approved 15 chronic-condition categories that a C-SNP may target. A plan can be built around a single condition, around a CMS-approved grouping of conditions that commonly occur together, or around several at once. The most widely available plans focus on:
- Diabetes mellitus
- Cardiovascular disorders (coronary artery disease, arrhythmias, peripheral vascular disease)
- Chronic heart failure
- Chronic lung disorders (COPD, asthma, emphysema, bronchiectasis)
- Chronic kidney disease, including end-stage renal disease
- Chronic and disabling mental health conditions
To join, you need Medicare Part A and Part B and a documented qualifying condition. Your doctor has to confirm the diagnosis — and this part trips people up. If the plan cannot verify your eligibility by the end of your first month enrolled, you will be disenrolled at the end of the following month. Get the verification form back to your plan promptly.
One change to know for 2026: as of January 1, SNP members need a documented qualifying chronic condition to access food and utility benefits. If you had those benefits before and your paperwork lapses, they can go away.
If any of this is new to you, our guide to how Medicare works covers the difference between Original Medicare, Medicare Advantage, and the supplemental pieces.
How We Ranked These Carriers
| Criteria |
Weight |
Why It Matters |
| 2026 CMS Star Ratings |
High |
The only standardized, government-audited quality measure across all plans |
| C-SNP footprint |
High |
A great carrier is useless if it has no chronic-condition plan in your county |
| Condition-specific benefit design |
High |
Waived copays, care coordination, and condition-relevant extras are the entire point of a C-SNP |
| Part D formulary strength |
Medium |
Chronic conditions mean ongoing prescriptions; formulary placement drives your real cost |
| Supplemental benefits |
Medium |
Dental, vision, hearing, transportation, and food or utility allowances |
| Network breadth |
Medium |
Whether you can keep the specialists already treating you |
Data sources: CMS 2026 Star Ratings, Medicare.gov Plan Finder, CMS Special Needs Plan program rules, carrier 2026 plan announcements, and KFF Medicare Advantage research.
1. Kaiser Permanente — Highest and Most Consistent Quality Scores
Best for: People in a Kaiser service area who want integrated care under one roof
2026 Star Rating: 100% of plans rated 4 to 4.5 stars
C-SNP availability: Limited — Kaiser's strength is its integrated model, not SNP breadth
Kaiser Permanente is the only major carrier where every Medicare Advantage plan carries at least 4 stars for 2026. For someone managing a chronic condition, the appeal is structural: your primary care doctor, specialists, labs, pharmacy, and records all sit inside one system, which removes most of the coordination failures that make chronic illness exhausting to manage.
Pros
- Every 2026 plan rated 4 stars or higher — the most consistent record in the industry
- Integrated model means your cardiologist and your pharmacist are looking at the same chart
- Strong chronic disease management programs built into standard plans
Cons
- Only available in California, Colorado, Georgia, Hawaii, Maryland, Oregon, Virginia, Washington, and the D.C. area
- You generally must use Kaiser doctors and facilities — almost no out-of-network flexibility
- Fewer dedicated C-SNPs than carriers that specialize in them
Who This Is Best For
Someone who lives in a Kaiser region, does not travel extensively, and values having one organization coordinate everything. It is a poor fit if you have long-standing relationships with outside specialists you do not want to leave, or if you spend months each year in another state.
2. Aetna (CVS Health) — Strongest Star Ratings Among National Carriers
Best for: Broad national access with high quality scores
2026 Star Rating: More than 81% of members in 4+ star plans; over 63% in 4.5-star plans
C-SNP availability: Wide, with dedicated diabetes and cardiovascular plans
Aetna leads its national peers on quality: for 2026, more than 81% of its Medicare Advantage members are in plans rated 4 stars or better, and over 63% are in 4.5-star plans. That is down from 89% in 2025, so the trend is worth watching — but it remains the strongest position among the large national carriers.
Pros
- Highest share of members in 4.5-star plans among national carriers
- CVS pharmacy integration can simplify refills and lower drug costs for maintenance medications
- Dedicated C-SNPs for diabetes and cardiovascular conditions in many markets
Cons
- Star ratings declined meaningfully year over year, from 89% to 81% of members in 4+ star plans
- Pharmacy benefits are most valuable if you actually use CVS or its mail-order service
- Network breadth varies considerably by county
Who This Is Best For
Someone with diabetes or a cardiovascular condition who takes several maintenance medications and lives near a CVS. Less compelling if you prefer an independent pharmacy or if the local Aetna network excludes your specialist.
3. UnitedHealthcare — Largest Network and Improving Scores
Best for: People who need the widest possible provider network
2026 Star Rating: 78% of members in 4+ star plans; 40% in 4.5-star plans
C-SNP availability: Extensive national footprint
UnitedHealthcare is the largest Medicare Advantage carrier in the country, and its 2026 scores improved while several competitors slipped — 78% of members sit in plans rated 4 stars or better. For chronic conditions, scale is a real benefit: the odds that your existing specialists are already in network are higher here than anywhere else.
Pros
- Largest provider network of any Medicare Advantage carrier
- Star ratings improved for 2026 while Aetna and Humana declined
- C-SNPs available across a wide range of markets and conditions
Cons
- Lower share of members in top-tier 4.5-star plans than Aetna
- Prior authorization requirements have drawn sustained criticism
- Plan quality varies widely between counties — the national average tells you little about your specific plan
Who This Is Best For
Someone who sees multiple specialists, travels, or lives somewhere with limited plan competition. Worth a harder look if you are on medications that frequently require prior authorization.
4. Alignment Health — The Most C-SNP Choices
Best for: People who want a plan actually built around their specific condition
2026 offering: 24 special needs plans, including 19 C-SNPs
C-SNP availability: Deep but geographically concentrated
Alignment Health is small compared to the national carriers, but it is the most committed to special needs plans. For 2026 it offers 24 SNPs — 19 chronic-condition plans and five for people eligible for both Medicare and Medicaid — including combined heart and diabetes plans. If you want a plan designed around your illness rather than a general plan you happen to qualify for, this is the deepest menu available.
Pros
- 19 distinct C-SNPs for 2026 — more condition-specific choice than most national carriers
- Plans built around common condition combinations, such as heart disease with diabetes
- High-touch care coordination is central to the model, not an add-on
Cons
- Available in a limited set of states and counties
- Much smaller provider network than the national carriers
- Less brand familiarity, which matters if your doctors are unfamiliar with the plan
Who This Is Best For
Someone in an Alignment service area with two or more qualifying conditions who wants intensive care coordination. Not an option at all in most of the country — check availability before getting attached to the idea.
5. Humana — Wide C-SNP Availability, Declining Scores
Best for: Markets where Humana has strong local networks
2026 Star Rating: Roughly 20% of members in 4+ star plans, down from 25% in 2025
C-SNP availability: Broad national footprint
Humana has long been one of the two largest Medicare Advantage carriers and offers C-SNPs across many markets. The honest problem for 2026 is quality: only about 20% of Humana members are in plans rated 4 stars or higher, down from 25% the prior year. That does not make every Humana plan a poor choice, but it does mean you should check the star rating of the specific plan in your county rather than trusting the brand.
Pros
- One of the widest C-SNP footprints in the country
- Strong primary care partnerships in several major markets
- Competitive supplemental benefits, including dental and over-the-counter allowances
Cons
- Lowest share of members in 4+ star plans among the major carriers
- Star ratings declined year over year
- Quality varies sharply between markets, so the carrier name tells you very little
Who This Is Best For
Someone in a county where a specific Humana C-SNP carries 4 stars or better and includes their doctors. Look up the individual plan rating — the company-wide number is not encouraging.
6. Elevance Health (Anthem) — Strong Regional Presence
Best for: Blue Cross Blue Shield markets where Anthem is the dominant insurer
C-SNP availability: Concentrated in Anthem's 14 Blue-branded states
Anthem's Medicare Advantage business is regionally concentrated rather than national, which is not a weakness if you live in one of its core states. In those markets the Blue Cross Blue Shield network is often the broadest available, and long-standing relationships with local hospital systems tend to mean fewer network surprises. We could not verify a current published 2026 member-weighted star rating for Elevance, so treat the plan-level rating on Medicare.gov as your source of truth here.
Pros
- Deep local networks in its 14 Blue-branded states
- Blue Cross Blue Shield brand recognition with providers reduces billing friction
- Competitive supplemental benefits in core markets
Cons
- We could not verify a member-weighted 2026 star rating — check the specific plan
- Effectively unavailable outside its Blue-branded footprint
- C-SNP selection is narrower than Alignment's or UnitedHealthcare's
Who This Is Best For
Someone in an Anthem state whose doctors are already in the Blue network. Not relevant if you live outside its territory.
7. Cigna Healthcare — Competitive Drug Coverage
Best for: People whose costs are driven mainly by prescriptions
C-SNP availability: Selective, in targeted markets
Cigna runs a smaller Medicare Advantage business than the giants but competes hard on pharmacy. For chronic conditions where the monthly cost is dominated by drugs rather than office visits, formulary placement can matter more than anything else on this page. As with Elevance, we could not verify a published member-weighted 2026 star rating, so check the individual plan.
Pros
- Historically competitive Part D formularies and pharmacy pricing
- Smaller book of business can mean more responsive service
- Reasonable supplemental benefits in the markets it serves
Cons
- Limited geographic availability compared to the national carriers
- We could not verify a member-weighted 2026 star rating
- Narrower C-SNP selection
Who This Is Best For
Someone on several brand-name maintenance drugs who should compare formularies line by line. Our guide to Medicare Part D drug plans walks through how to price your own medication list.
8. Devoted Health — High-Touch Service, Narrow Footprint
Best for: Members in Devoted's service areas who want responsive customer service
C-SNP availability: Limited; operates as a HIDE SNP/MCO only in Florida
Devoted Health is a newer, technology-focused carrier that has built a reputation for customer service in an industry where that is rare. It does offer C-SNPs for 2026, but its footprint is narrow, and its integrated dual-eligible operation is Florida-only. Include it in your comparison if it operates where you live; skip it otherwise.
Pros
- Consistently strong member service reputation
- Simpler plan designs that are easier to understand
- Dedicated care guides who handle coordination on the member's behalf
Cons
- Available in a limited number of states and counties
- Smallest provider network on this list
- Shorter operating track record than the established carriers
Who This Is Best For
Someone in a Devoted service area who has found large-carrier customer service frustrating. Not an option for most people, simply on geography.
Quick Comparison
| Carrier |
2026 Quality Position |
C-SNP Breadth |
Geographic Reach |
Best For |
| Kaiser Permanente |
100% of plans at 4–4.5 stars |
Limited |
8 states + D.C. |
Integrated care in-region |
| Aetna (CVS) |
81%+ of members in 4+ star plans |
Wide |
National |
Diabetes and cardiovascular, pharmacy-heavy |
| UnitedHealthcare |
78% of members in 4+ star plans |
Extensive |
National |
Widest provider network |
| Alignment Health |
Not member-weighted published |
19 C-SNPs for 2026 |
Select states |
Most condition-specific choice |
| Humana |
~20% of members in 4+ star plans |
Broad |
National |
Strong local markets only |
| Elevance (Anthem) |
Not verified |
Moderate |
14 Blue states |
Anthem-state members |
| Cigna |
Not verified |
Selective |
Targeted markets |
Prescription-driven costs |
| Devoted Health |
Not verified |
Limited |
Narrow |
Service-first members |
How We Researched This
This guide draws on the CMS 2026 Medicare Advantage Star Ratings release, CMS Special Needs Plan program documentation for chronic conditions, Medicare.gov Plan Finder, 2026 plan announcements published by the carriers, and KFF Medicare Advantage research. We ranked national carriers rather than individual plans because Medicare Advantage plans are sold county by county — naming a specific plan and premium would be wrong for most readers.
Where we could not verify a member-weighted 2026 star rating for a carrier, we say so rather than estimating. We excluded regional carriers with fewer than roughly 100,000 Medicare Advantage members and any plan whose 2026 availability we could not confirm.
Last updated: September 14, 2026. We review this guide annually after CMS publishes star ratings each fall, and again when the Annual Enrollment Period opens.
Frequently Asked Questions
What is a C-SNP?
A C-SNP is a Chronic Condition Special Needs Plan — a type of Medicare Advantage plan limited to people with a specific chronic illness. Because every member shares the condition, benefits and care coordination can be built around it.
What conditions qualify for a C-SNP?
CMS has approved 15 chronic-condition categories. The most commonly offered plans cover diabetes, cardiovascular disorders, chronic heart failure, chronic lung disorders such as COPD, chronic kidney disease including ESRD, and chronic and disabling mental health conditions.
Can I join a C-SNP outside of open enrollment?
Yes. If you have a qualifying chronic condition, you have a Special Enrollment Period that lets you join a C-SNP serving that condition at any time of year, as long as one is available where you live.
What happens if my doctor does not confirm my condition?
You can be disenrolled. Plans may enroll you before receiving confirmation, but if the plan cannot verify your eligibility by the end of your first month enrolled, you will be disenrolled at the end of the following month. Return the verification form quickly.
When is the Medicare Annual Enrollment Period for 2026 coverage?
October 15 through December 7. Changes take effect January 1. There is also a Medicare Advantage Open Enrollment Period from January 1 through March 31 for people already in a Medicare Advantage plan.
What is the Part D out-of-pocket cap in 2026?
$2,100. Once your out-of-pocket spending on covered drugs reaches that amount, you enter catastrophic coverage and your plan pays the full cost of covered medications for the rest of the year. This cap matters most for people managing chronic conditions with expensive drug regimens.
Are C-SNPs more expensive than regular Medicare Advantage plans?
Not usually. Many C-SNPs carry a $0 or low monthly premium (learn more about medicare advantage vs medicare supplement), the same as standard Medicare Advantage plans in the same area. The difference is in benefit design — condition-specific cost-sharing and care coordination — not in price.
Do I still need a separate Part D plan?
No. Most C-SNPs include prescription drug coverage. In fact, you generally cannot enroll in a standalone Part D plan while in a Medicare Advantage plan that already includes drug coverage.
Should I consider Original Medicare with a Medigap plan instead?
Possibly. If you see specialists across multiple states, travel often, or want to avoid network restrictions and prior authorization entirely, Original Medicare plus a Medigap policy and a standalone Part D plan may serve you better. The tradeoff is a monthly Medigap premium and no extra benefits like dental or vision.
Will my C-SNP cover me if I move?
Only if the plan serves your new county. Medicare Advantage plans are county-specific. Moving outside the service area triggers a Special Enrollment Period so you can choose new coverage.
What if I have more than one qualifying condition?
Some carriers, Alignment Health among them, offer plans built around CMS-approved condition groupings such as heart disease with diabetes. If you have multiple conditions, look for a combined plan before choosing a single-condition one.
How do I find out which C-SNPs are available where I live?
Use the Plan Finder on Medicare.gov with your ZIP code and your medication list. It shows every plan available in your county, its star rating, and your estimated annual drug cost. That is the only reliable way to move from a national shortlist like this one to an actual decision.
Important Disclosures
This content is for informational and educational purposes only. It does not constitute medical, insurance, or financial advice. Medicare Advantage plan availability, benefits, premiums, provider networks, and drug formularies vary by county and change every year — confirm all details on Medicare.gov or directly with the carrier before enrolling. Star ratings cited are from the CMS 2026 release and reflect carrier-wide figures, not the rating of any individual plan. SeniorSimple is not affiliated with, endorsed by, or connected to Medicare, the Centers for Medicare & Medicaid Services, or any government agency. Consult a licensed insurance agent or your State Health Insurance Assistance Program (SHIP) for free, unbiased help with your specific situation.