Medicare Advantage

Santa Ana's 2027 C-SNP lineup: 41 chronic-condition plans and how to join one

Orange County has 111 Medicare Advantage plans for 2027. Compared with 2026, 21 plans are not coming back, 28 are new, and 51 continuing plans changed in some way you should check before December 7, 19 of them under a new name. This guide covers what those numbers mean for Santa Ana, not which plan to pick.

SANTA ANA, Calif. — Fall 2026. As the Annual Enrollment Period for 2027 coverage runs from Oct. 15 through Dec. 7, 2026, people living with a long-term health condition in Santa Ana have a specific slice of Medicare Advantage to look at: Chronic Condition Special Needs Plans, or C-SNPs. For plan year 2027, 41 of the 111 Medicare Advantage plans offered in Orange County — the county Santa Ana sits in — are C-SNPs, built around a qualifying chronic diagnosis.

That is a meaningful share of the local lineup, and several of the C-SNP options are either new or renamed for 2027. Here is how these plans work, who can join, and when.

What is a C-SNP, and how does it work in Santa Ana for 2027?

A Chronic Condition Special Needs Plan is a type of Medicare Advantage plan that only accepts members who have a specific chronic condition — for example, diabetes, chronic heart failure, chronic lung disorders, or end-stage renal disease. CMS sets the list of qualifying conditions.

Because every member shares a diagnosis, the plan is designed around that condition: the drug list, the care coordination and the provider network are shaped to fit. All 41 C-SNPs offered in Orange County for 2027 include Part D drug coverage. Like other Medicare Advantage plans, a C-SNP replaces the way Original Medicare pays your Part A and Part B claims, and the plan handles your care under its own rules.

Which carriers offer C-SNPs in Orange County for 2027?

Eleven carriers offer C-SNPs in Orange County for 2027. In alphabetical order, they are Aetna (CVS Health) with 1 plan, Alignment Health Plan with 9, Astiva Health with 4, Centene (WellCare) with 1, Champion Heath Plan with 8, Clever Care Health Plan with 4, Elevance Health (Anthem) with 5, Imperial Health Plan of California, Inc. with 2, SCAN Health Plan with 3, UnitedHealthcare with 2, and VillageHealth with 2.

A number of these are new for 2027 — including Aetna Medicare Chronic Care, Astiva Health C-SNP Bloom, Astiva Health C-SNP Fountain, Champion Compass, Champion Home, Champion Secure, Clever Care Breathe Select+, Clever Care Total Choice+, Imperial Flex, SCAN Ansim Care, and both VillageHealth SCAN DaVita Dialysis Care plans. Several Alignment Health C-SNPs have been renamed; the table below lists each one and flags what is new or renamed.

You can tell which condition a plan serves only when its name says so (for example, a plan with "Heart & Diabetes," "Lung," "Kidney" or "Dialysis" in the name). For every other plan, the Evidence of Coverage spells out the qualifying diagnosis.

Who qualifies to enroll in a C-SNP?

To enroll in a C-SNP, you must have Medicare Part A and Part B, live in the plan's service area, and have the specific chronic condition the plan is designed for. That diagnosis has to be confirmed by a qualified provider — not just self-reported. The plan will typically send a short form for your doctor to sign; if the diagnosis is not verified within the time CMS allows, enrollment can be ended.

This is the single most important thing to understand about C-SNPs. A regular Medicare Advantage plan does not require a diagnosis to join. A C-SNP does.

When can you sign up for a C-SNP in Santa Ana?

The Annual Enrollment Period runs Oct. 15 through Dec. 7, 2026, and anything you choose during that window takes effect Jan. 1, 2027. That is the main window every Medicare household knows about.

But people with a qualifying chronic condition also have a Special Enrollment Period tied to the diagnosis itself. In most cases, once a provider confirms a qualifying condition, you have a one-time chance to enroll in a C-SNP designed for that condition outside the regular enrollment windows. The SEP generally stays open until you make a C-SNP choice. This means you do not have to wait until next October if a new diagnosis changes your situation in, say, March.

If you already have a C-SNP and like it, you do not have to do anything — your plan renews for 2027 if it is still offered. Review the Annual Notice of Change your plan mails in September; it lists what is changing for next year.

What is changing in Santa Ana's Medicare landscape for 2027?

Across the full Orange County Medicare Advantage lineup for 2027, 28 plans are new, 21 are not returning, and 19 are renamed. Within the C-SNP slice specifically, you'll see several new plans from Aetna, Astiva, Champion, Clever Care, Imperial, SCAN and VillageHealth, and a cluster of Alignment Health C-SNPs that kept the plan but changed the name.

On the program side, two 2027 Part D numbers are already set: the out-of-pocket cap on covered drugs is $2,400 (up from $2,100 in 2026), and the maximum Part D deductible is $700 (up from $615 in 2026). CMS will publish the 2027 Part B standard premium, Part B deductible and IRMAA income brackets later in the fall, usually in November.

How should you compare C-SNPs if you qualify for more than one?

Start on medicare.gov's Plan Finder, which lets you enter your ZIP code, your drugs and your providers, and shows the specific premium, deductible, cost-sharing, drug list and network for each plan in Orange County. We cannot publish those plan-level details here, and no article can tell you which plan fits your situation.

Two practical steps:

1. Confirm your diagnosis with your doctor and make sure it matches a C-SNP's qualifying condition before you apply. 2. Check that the specialists and hospitals you already use are in the plan's network, and that your prescriptions are on its formulary.

The table below lists every C-SNP available in Orange County for 2027, grouped by carrier.