Medicare Advantage Special Needs Plans 2027: C-SNP, D-SNP and I-SNP Explained

Aligned enrollment for D-SNPs

From 2027, CMS requires greater alignment between certain Medicare D-SNPs and Medicaid plans. In some areas this means that enrolling in a D-SNP may also require being enrolled in an affiliated Medicaid plan from the same company. Integrated plans are also moving toward a single member ID card covering both. Timing and specifics vary by state, and not every state is making the same changes, so check what applies where you live rather than assuming.

No more self-certifying for chronic illness benefits

CMS has ended self-attestation for special supplemental benefits for the chronically ill. Plans must now set objective eligibility criteria and publish them publicly. This affects C-SNPs most directly, and it cuts both ways: harder to claim a benefit you do not clearly qualify for, easier to find out in advance whether you do.

More money going into plans

CMS is paying Medicare Advantage plans 2.48 percent more in 2027, over $13 billion above 2026. After two years of benefit trimming across the industry, that reduces the pressure to cut, though it guarantees nothing in any particular plan or county.

If you have a D-SNP

Medicaid generally covers your Medicare cost sharing, so many dual eligible members pay little or nothing out of pocket for covered care. If you have Qualified Medicare Beneficiary status, providers are also barred from billing you for Medicare deductibles, copays and coinsurance at all. Many duals also qualify for Extra Help, which sharply reduces drug costs.

If you have a C-SNP or I-SNP

You pay standard Medicare Advantage costs: the plan premium if there is one, copays for visits and services, and an annual out-of-pocket maximum that caps your medical spending. The 2027 drug figures apply as they do everywhere, with the Part D deductible rising to $700 and the prescription out-of-pocket cap to $2,400.

Step 1

Confirm you actually qualify

SNPs verify eligibility, and losing eligibility means losing the plan after a grace period. For a C-SNP the plan will need confirmation from your doctor. For a D-SNP it depends on your current Medicaid category, which is not always what people assume it is.

Step 2

Check the network for your specialists, not just your GP

SNPs are usually network based and often HMO style. Since these plans exist for people with defined conditions, the specialists treating that condition matter more than the primary care physician. Check them by name.

Step 3

Check your drugs against the formulary

Every SNP includes Part D, but formularies still differ. With the 2027 drug deductible rising to $700 and the out-of-pocket cap to $2,400, tier placement on the medications you actually take matters more than it did last year.

➤  What is a Medicare Advantage Special Needs Plan?

A Special Needs Plan is a Medicare Advantage plan that only accepts people meeting defined eligibility criteria. There are three kinds: Chronic Condition SNPs for people with a qualifying severe or disabling chronic illness, Dual Eligible SNPs for people with both Medicare and Medicaid, and Institutional SNPs for people in a nursing facility or needing that level of care at home. Every SNP must include Part D prescription coverage and is built around a care coordination model.

➤  What is changing for D-SNPs in 2027?

The main change is aligned enrollment. CMS is requiring greater alignment between certain Medicare D-SNPs and Medicaid plans, and in some areas enrolling in a D-SNP may also require being enrolled in an affiliated Medicaid plan from the same company. Integrated plans are moving toward one member ID card covering both. Timing and details vary by state and not every state is making the same changes, so confirm what applies in yours.

➤  Can dual eligible members change plans every month?

Not in the way most people think, and the old quarterly window is gone as of January 1, 2025. Full benefit dual eligibles have a monthly integrated care special enrollment period, but it can only be used to move into an integrated D-SNP aligned with their Medicaid plan. Separately, a monthly dual and low income subsidy period allows a move to Original Medicare with a standalone drug plan, or a switch between drug plans.

Neither one lets you switch freely between ordinary Medicare Advantage plans. Partial benefit duals and people with Extra Help but not Medicaid get the second period only.

➤  Do Special Needs Plans include drug coverage?

Always. Part D prescription coverage is required in every Special Needs Plan without exception, which is one of the few things all three types have in common. You do not need a separate drug plan alongside one, and generally cannot enroll in one anyway. Formularies still vary between plans, so check your specific medications and their tiers.

➤  What happens if I stop qualifying for my SNP?

Plans allow a grace period, after which you lose the plan. Losing eligibility also triggers a special enrollment period, so you are not stuck without options, but you do have to act during it. This comes up most with D-SNPs, where a change in Medicaid status can affect eligibility without the member realizing anything has changed until a letter arrives.