Medicare Advantage
Aetna's 2027 Medicare Advantage plans in Anaheim: two new, three gone, two renamed
ANAHEIM, Calif. — As the Annual Enrollment Period for 2027 Medicare coverage runs from October 15 to December 7, 2026, Aetna's Medicare Advantage lineup in Orange County is shifting. The carrier is bringing two new plans to the county, retiring three, and renaming two others. If you have an Aetna plan today, those changes will show up in the Annual Notice of Change (ANOC) your plan mailed you — and they are the reason to look twice before December 7.
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Key takeaways
- Aetna is offering 6 Medicare Advantage plans in Orange County for 2027, down from 7 in 2026.
- Two Aetna plans are new for 2027, three are not returning, and two were renamed; the ANOC spells out what changed.
- The Annual Enrollment Period ends December 7, 2026, and any change you make takes effect January 1, 2027.
- If you do nothing and your current plan is being offered again, it renews automatically under its 2027 terms.
| Fact | Figure | Source |
|---|---|---|
| Medicare Advantage plans offered in Orange County (2026) | 104 | CMS |
| Medicare Advantage plans offered in Orange County (2027) | 111 | CMS |
| Plans not returning for 2027 / new for 2027 | 21 / 28 | CMS |
| Organizations offering Medicare Advantage in Orange County (2026) | 17 | CMS |
| Share of eligible beneficiaries in Medicare Advantage, Orange County | 56% | CMS |
| Residents age 65 and older, Orange County | 514,824 | U.S. Census Bureau |
| Part B standard monthly premium (2026) | $202.90 | Medicare.gov |
| Part D out-of-pocket cap (2026) | $2,100 | CMS |
| Part D out-of-pocket cap (2027) | $2,400 | CMS |
| Annual Enrollment Period (for 2027 coverage) | October 15 – December 7, 2026 | Medicare.gov |
| Medicare Advantage Open Enrollment Period | January 1 – March 31 | Medicare.gov |
Area counts are for the county as a whole and are not a recommendation of any plan. Program figures are set nationally.
This article is a plan-by-plan snapshot of what Aetna is offering in the county Anaheim sits in for 2027. MyMedicarePlans.org is an independent consumer site, not Aetna, and 15 other carriers also offer Medicare Advantage plans in Orange County next year.
What Medicare Advantage plans does Aetna offer in Anaheim for 2027?
Aetna offers 6 Medicare Advantage plans in Orange County — the county Anaheim is in — for plan year 2027. By type, that is 5 HMO plans and 1 HMO-POS plan. Five of the six include Part D drug coverage, and one is a Chronic Condition Special Needs Plan (C-SNP). Aetna does not offer a Dual-Eligible SNP (D-SNP) or an Institutional SNP (I-SNP) in the county for 2027.
The table below lists every Aetna plan available in the county for 2027, in alphabetical order, along with its plan type and whether it includes drug coverage.
What is new, renamed, or not returning in Aetna's 2027 lineup?
Aetna is adding two plans for 2027 — Aetna Medicare Chronic Care (HMO C-SNP) and Aetna Medicare Eagle (HMO) — and retiring three plans that were available in 2026. Two more carry forward with new names: Aetna Medicare Prime is now offered as an HMO-POS (it was previously labeled differently), and Aetna Medicare Signature Legacy (HMO) is the renamed version of a prior Aetna Medicare Signature (HMO) product.
If you are enrolled in a plan that is being renamed, your coverage is not disappearing, but the plan ID and the paperwork will look different. If you are enrolled in a plan that is not returning, Medicare will notify you, and you will have time during AEP — and in some cases a Special Enrollment Period — to choose a new plan.
How does the Aetna C-SNP work, and who qualifies?
A Chronic Condition Special Needs Plan is a type of Medicare Advantage plan limited to people living with specific chronic conditions, such as diabetes or heart failure. Aetna Medicare Chronic Care (HMO C-SNP) is new for Orange County in 2027, and enrollment is restricted to people who qualify under CMS's rules for the condition the plan serves.
If you think a C-SNP may fit your situation, Medicare.gov's Plan Finder will show the qualifying conditions for a given plan, and 1-800-MEDICARE can walk you through eligibility.
How do I check an Aetna plan against my doctors and prescriptions?
Before December 7, 2026, confirm three things for any Aetna plan on your short list: that your doctors and hospitals are in the plan's network for 2027, that your prescriptions are on its 2027 formulary at a tier you can afford, and that any pharmacy you use is a preferred in-network pharmacy.
The simplest way to check all three in one place is the Medicare Plan Finder at medicare.gov. Enter your ZIP code and your drug list, and the tool shows you how each plan handles your specific medications. You can also call 1-800-MEDICARE (TTY 1-877-486-2048), 24 hours a day, 7 days a week, or request the plan's Evidence of Coverage and provider and pharmacy directories directly from Aetna. Networks and drug lists can change year to year, so a plan that fit in 2026 may look different in 2027.
What should I know about drug coverage and Part D costs for 2027?
For 2027, CMS has confirmed the Part D out-of-pocket cap will be $2,400 (up from $2,100 in 2026), and the maximum Part D deductible will be $700 (up from $615 in 2026). The national base beneficiary premium — a formula input, not what any one plan charges — is $41.33 for 2027.
Five of Aetna's six Orange County plans for 2027 include Part D drug coverage; one does not. The Medicare Prescription Payment Plan, which lets you spread drug costs across the calendar year in monthly installments, remains available in 2027.
CMS has not yet announced the 2027 Part B standard premium and deductible, or the 2027 IRMAA income brackets. Those are typically published in the fall, usually in November.
What happens if I do nothing by December 7?
If your current plan is offered again in 2027, it renews automatically under its 2027 terms — the premium, deductible, drug list, network, and extra benefits in your plan's ANOC. If your plan is one of the three Aetna plans not returning for 2027, you will need to pick a new plan to keep Medicare Advantage coverage; otherwise you'll return to Original Medicare without a Part D plan.
You can also make one change to a different Medicare Advantage plan during the Medicare Advantage Open Enrollment Period, January 1 – March 31, 2027.
By the numbers
Medicare Part B premium, 2006–2026
The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.
Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.
By the numbers
How people get Medicare in Orange County
(MA penetration in Orange County)
MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.
2027 plan lineup
Aetna Medicare Advantage plans in Orange County for 2027
CMS lists 6 Aetna Medicare Advantage plans in Orange County for 2027, alphabetically by carrier. 15 other carriers also offer plans there.
| Plan | Type | Drug coverage | For 2027 |
|---|---|---|---|
| Aetna (CVS Health) 6 plans | |||
| Aetna Medicare Chronic Care (HMO C-SNP) | HMO C-SNP | Yes | New |
| Aetna Medicare Eagle (HMO) | HMO | No | New |
| Aetna Medicare Prime (HMO) | HMO-POS | Yes | Renamed |
| Aetna Medicare Signature (HMO) | HMO | Yes | Returning |
| Aetna Medicare Signature Extra (HMO) | HMO | Yes | Returning |
| Aetna Medicare Signature Legacy (HMO) | HMO | Yes | Renamed |
Source: CMS Medicare Advantage Landscape Source Files, plan years 2026 and 2027. Plan availability is set at the county level. No plan is ranked or recommended; premiums, benefits, networks and star ratings are not shown. Plan details come from the Medicare Plan Finder at medicare.gov or the plan itself.
The 2027 choices, by type
How Aetna Medicare Advantage plans in Orange County break down for 2027
HMO plans use a network and usually a primary-care doctor and referrals; HMO-POS plans add some out-of-network coverage; PPO plans also cover out-of-network care, at a higher share; PFFS plans pay any provider that accepts the plan’s terms. Special Needs Plans serve people with Medicare and Medicaid (D-SNP), certain chronic conditions (C-SNP) or living in an institution (I-SNP).
Source: CMS Medicare Advantage Landscape Source Files, plan years 2026 and 2027. Plan availability is set at the county level. No plan is ranked or recommended; premiums, benefits, networks and star ratings are not shown. Plan details come from the Medicare Plan Finder at medicare.gov or the plan itself.
Key dates
Medicare enrollment periods at a glance
- Around your 65thInitial Enrollment PeriodA 7-month window around the month you turn 65 — your first chance to sign up.
- October 15 – December 7Annual Enrollment PeriodAnyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan.
- January 1 – March 31Medicare Advantage Open EnrollmentIf you're already in a Medicare Advantage plan, you can make one change.
- January 1 – March 31General Enrollment PeriodFor people who missed their first chance to sign up for Part B.
- VariesSpecial Enrollment PeriodTriggered by life events like moving or losing other coverage.
Dates are set by Medicare and apply nationwide. Confirm your personal windows at Medicare.gov or 1-800-MEDICARE.
Explore
When can you enroll? An interactive year
Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.
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The parts of Medicare
Good to know
Frequently asked questions
How many Medicare Advantage plans does Aetna offer in Orange County for 2027?
What does it mean that my Aetna plan was "renamed" for 2027?
What if my Aetna plan is not returning in 2027?
When do changes I make during AEP take effect?
- CMS — MA Landscape Source File (plan-level availability by county)
- CMS — MA Landscape Source Files, current and coming plan year (year-over-year comparison)
- CMS — Medicare enrollment periods (medicare.gov)
For personalized answers, contact Medicare.gov or 1-800-MEDICARE.
Also for Anaheim
Sources and methodology
- CMS, Medicare Advantage and Part D Landscape Source Files
- CMS, Medicare Advantage state/county penetration and enrollment files
- U.S. Census Bureau, American Community Survey (table B01001, age 65 and older)
- Medicare.gov, Medicare costs (Part B premium)
- CMS, Medicare prescription drug coverage (Part D) program rules
- CMS, Medicare Advantage and Part D plan-year announcements
- Medicare.gov, enrollment periods and plan rules
Figures cited in this article
- CMS Medicare Advantage Landscape Source Files (CY2026 and CY2027): the Orange County plan counts, plan names and plan types for Aetna, year-over-year changes, and total carrier count.
- Medicare.gov: the Annual Enrollment Period dates, the Medicare Advantage Open Enrollment Period, the Plan Finder tool, and 1-800-MEDICARE.
- CMS Part D program parameters for 2027: the out-of-pocket cap, maximum deductible, and national base beneficiary premium.
How we put this together: area counts come from the CMS files listed above for the county that contains this city, program figures come from CMS, Medicare.gov and the Social Security Administration, and no plan is ranked or recommended.
By The Medicare Desk · Published . For personalized answers, contact Medicare.gov or 1-800-MEDICARE.
Content Integrity Standards
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This page was last updated: October 2026.