Medicare Advantage
Aetna's Medicare Advantage plans in Irvine for 2027: what's new, renamed and not returning
Irvine, Calif. — Aetna's Medicare Advantage lineup in Orange County looks different for 2027. The carrier will offer six Medicare Advantage plans in the county next year, down from seven in 2026, with two new plans, two renamed plans, and three that are not returning. Irvine residents who are enrolled with Aetna today should see those changes spelled out in their Annual Notice of Change (ANOC) and have until December 7, 2026 to switch if they want to.
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Key takeaways
- Aetna will offer 6 Medicare Advantage plans in Orange County for 2027: 5 HMOs and 1 HMO-POS.
- Two plans are new for 2027, two are renamed, and three 2026 plans are not returning — your ANOC has the specifics.
- Aetna is one of 16 carriers selling Medicare Advantage in Orange County next year, out of 111 plans in total.
- The Annual Enrollment Period runs October 15 to December 7, 2026; changes take effect January 1, 2027.
| 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.
MyMedicarePlans.org is an independent consumer site, not Aetna and not Medicare. We publish availability counts straight from the CMS Landscape Source File so you can see what's on the shelf before you call anyone.
What Aetna Medicare Advantage plans are offered in Irvine for 2027?
Irvine is in Orange County, where Aetna (which CMS lists as Aetna (CVS Health)) will offer six Medicare Advantage plans for 2027. By type, that's five HMOs and one HMO-POS. Five of the six include Part D drug coverage; one does not. One of the six is a Chronic Condition Special Needs Plan (C-SNP); Aetna is not offering a Dual Eligible or Institutional SNP in the county for 2027.
The table below lists every Aetna plan available in the county for next year, with its plan type and whether it includes drug coverage.
What's new, renamed or not returning from Aetna in Orange County for 2027?
Three plans Aetna sold in Orange County in 2026 are not being offered again in 2027. Two plans are new on the shelf for next year: Aetna Medicare Chronic Care (HMO C-SNP) and Aetna Medicare Eagle (HMO). Two more plans carry forward with new names — Aetna Medicare Prime (HMO), which was previously the HMO-POS version under the same name, and Aetna Medicare Signature Legacy (HMO), which was previously Aetna Medicare Signature (HMO).
A rename isn't just a cosmetic change. The plan's benefits, drug list, provider network or cost sharing may have been updated too. The Annual Notice of Change your plan mails in the fall is the document that lays out exactly what is different for 2027.
What should Irvine residents do before the December 7 deadline?
The Annual Enrollment Period runs October 15 through 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 next year, it renews automatically with whatever changes are described in the ANOC.
Before you decide, it helps to check three things against any plan you're considering:
- Your doctors and hospitals — confirm they are in the plan's 2027 network.
- Your prescriptions — confirm each drug is on the plan's 2027 formulary and check its tier.
- Your pharmacy — confirm it is a network pharmacy for that plan in 2027.
The Medicare Plan Finder at medicare.gov lets you enter your drugs and preferred pharmacies and see plan-specific results. You can also call 1-800-MEDICARE, 24 hours a day, 7 days a week. For network questions, the plan's own provider directory is the authoritative source.
How does Aetna fit into the broader Orange County market for 2027?
Aetna is one of 16 carriers offering Medicare Advantage plans in Orange County for 2027. Across all carriers, there are 111 Medicare Advantage plans available in the county next year. That means Irvine residents have a wide field to compare — this article covers Aetna's piece of it, and our other city guides cover the rest.
Plan availability is set by CMS at the county level, so the same Aetna plans available in Irvine are available elsewhere in Orange County.
What 2027 Medicare figures are already confirmed?
A few program-wide numbers for 2027 are already published by CMS:
- The Part D out-of-pocket cap rises to $2,400 in 2027 (it is $2,100 in 2026).
- The Part D maximum deductible rises to $700 in 2027 (it is $615 in 2026).
- The Part D national base beneficiary premium is $41.33 for 2027 — a formula input, not what any one plan charges.
The 2027 Part B standard premium and deductible, and the 2027 IRMAA income brackets, have not yet been announced. CMS typically publishes those figures later in the fall.
The coverage gap (the old "donut hole") was eliminated in 2025, so Part D now has three phases. If drug costs are a concern, the Medicare Prescription Payment Plan lets you spread out-of-pocket drug costs across the plan year in monthly amounts instead of paying them all at the pharmacy counter.
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
Do I have to do anything if I like my current Aetna plan?
How do I check whether my doctor or my prescriptions are covered?
What is a C-SNP, and who qualifies?
When can I change plans if I miss December 7?
Watch
The Medicare Advantage changes for 2027 in California, in 30 seconds
- 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 Irvine
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, plan years 2026 and 2027: Aetna's plan counts and plan names for Orange County, and the year-over-year comparison of what is new, renamed and not returning.
- CMS — 2027 Part D parameters: the out-of-pocket cap, maximum deductible and national base beneficiary premium for 2027.
- Medicare.gov — Annual Enrollment Period dates, the Medicare Plan Finder, and 1-800-MEDICARE.
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.
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This page was last updated: October 2026.