Medicare Advantage
Before December 7: match your Aetna plan in Mesa
Mesa, Ariz. — If you have an Aetna Medicare Advantage plan in Mesa, your 2027 options from the carrier look a little different than they did this year. According to CMS plan filings for next year, Aetna (CVS Health) will offer six Medicare Advantage plans in Maricopa County — the county Mesa sits in — down from nine in 2026. Two are new for 2027, and five from this year's lineup are not returning.
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Key takeaways
- Aetna will offer 6 Medicare Advantage plans in Maricopa County for 2027: 3 HMOs and 3 PPOs, including 1 Chronic Condition Special Needs Plan (C-SNP).
- 2 of those plans are new for 2027 and 5 Aetna plans offered in 2026 are not returning; your Annual Notice of Change (ANOC) spells out what shifts for your specific plan.
- Aetna is one of 16 carriers offering Medicare Advantage in the county next year, with 92 plans in total across all carriers.
- The deadline to switch, join or drop a plan for 2027 coverage is December 7, 2026; if you do nothing and your plan is returning, it renews automatically.
| Fact | Figure | Source |
|---|---|---|
| Medicare Advantage plans offered in Maricopa County (2026) | 88 | CMS |
| Medicare Advantage plans offered in Maricopa County (2027) | 92 | CMS |
| Plans not returning for 2027 / new for 2027 | 13 / 17 | CMS |
| Organizations offering Medicare Advantage in Maricopa County (2026) | 16 | CMS |
| Share of eligible beneficiaries in Medicare Advantage, Maricopa County | 52% | CMS |
| Residents age 65 and older, Maricopa County | 742,814 | 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 news and education site, not Aetna and not the government. We're walking through what Aetna is offering locally so you can check it against your own doctors and prescriptions before the Annual Enrollment Period closes on December 7, 2026. Any change you make takes effect January 1, 2027.
What Aetna Medicare Advantage plans are offered in Mesa for 2027?
Aetna (CVS Health) is offering 6 Medicare Advantage plans in Maricopa County for plan year 2027. The split is 3 HMOs and 3 PPOs. Five of the six include Part D prescription drug coverage; one does not. One of the six is a Chronic Condition Special Needs Plan (C-SNP), which is designed for people with certain qualifying chronic conditions.
The table below lists every Aetna plan available in the county for 2027, in alphabetical order, with its plan type and whether it includes drug coverage. We can't attach premiums, copays, benefits, networks or star ratings to any plan name — those are specific to each plan and change year to year. You'll find them on the Medicare Plan Finder at medicare.gov or in each plan's Evidence of Coverage.
What is new or not returning in Aetna's 2027 Mesa lineup?
Two Aetna plans are new for 2027 in Maricopa County: Aetna Medicare Chronic Care (HMO C-SNP) and Aetna Medicare Prime (HMO). Five Aetna plans that were sold in 2026 are not being offered again in 2027.
If you're currently enrolled in a plan that isn't coming back, Aetna is required to send you a notice. You'll then have options during the Annual Enrollment Period and, if your plan is non-renewing, a Special Enrollment Period into early 2027. The Annual Notice of Change (ANOC) your current plan sent in late September has the specifics for your situation — the premium, copays, drug list and provider network for 2027, and whether the plan itself is continuing.
Does Aetna offer a Special Needs Plan in Maricopa County for 2027?
Yes. For 2027, Aetna has 1 Chronic Condition Special Needs Plan (C-SNP) in the county — Aetna Medicare Chronic Care (HMO C-SNP) — and no Dual Eligible (D-SNP) or Institutional (I-SNP) plans in this lineup. C-SNPs are limited to people with the chronic conditions the plan covers, so eligibility is specific. If you're interested, confirm you qualify before you enroll.
Other carriers in Maricopa County do offer D-SNPs and other SNP types, which brings us to the next question.
How many other carriers sell Medicare Advantage in Maricopa County?
Aetna is 1 of 16 carriers offering Medicare Advantage plans in Maricopa County for 2027, and together those carriers offer 92 plans. So if Aetna's six plans don't line up with your doctors or prescriptions, there is a wider menu to compare on medicare.gov.
Availability is set at the county level by CMS, not city by city — Mesa residents see the same Medicare Advantage lineup as other Maricopa County residents.
How do I check an Aetna plan against my doctors and prescriptions before December 7?
Three steps work for any plan — not just Aetna's:
1. Pull up medicare.gov's Plan Finder. Enter your ZIP code and your prescription drugs (name and dose). The tool will show each plan's estimated yearly cost for your drugs, the pharmacies in network, and whether your medications are on the plan's formulary. 2. Check the provider directory. Each plan has its own network. Even within one carrier, two plans can have different networks. Confirm your primary care doctor, any specialists you see, and your preferred hospital are listed for the specific plan — not just the carrier. 3. Read your ANOC if you already have a plan. It compares your current plan's 2026 details to its 2027 details so you can see what's changing before you decide whether to stay put.
If a plan name has changed or the plan isn't returning, Plan Finder will note that too.
What 2027 Medicare numbers are already set?
A few program-level figures for 2027 are confirmed and worth knowing as you shop:
- Part D out-of-pocket cap: $2,400 in 2027 (up from $2,100 in 2026).
- Part D maximum deductible: $700 in 2027 (up from $615 in 2026).
- Part D national base beneficiary premium: $41.33 for 2027 — this is a formula input, not what any particular plan charges.
The 2027 Part B standard premium and deductible, and the 2027 IRMAA income brackets, have not been announced yet. CMS typically publishes those in the fall, usually in November. We'll update as those post.
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 Maricopa County
(MA penetration in Maricopa 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 Maricopa County for 2027
CMS lists 6 Aetna Medicare Advantage plans in Maricopa 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 (PPO) | PPO | No | Returning |
| Aetna Medicare Prime (HMO) | HMO | Yes | New |
| Aetna Medicare Signature (HMO) | HMO | Yes | Returning |
| Aetna Medicare Signature (PPO) | PPO | Yes | Returning |
| Aetna Medicare Value Care (PPO) | PPO | Yes | Returning |
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 Maricopa 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
What happens if I do nothing by December 7, 2026?
Can I switch plans after December 7?
Does the C-SNP mean I need to have a chronic condition to join?
Where can I get help comparing plans one-on-one?
- 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 Mesa
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 Maricopa County plan list, plan types, drug coverage, SNP status, and the count of new and non-returning plans.
- CMS Medicare Advantage Landscape Source File (2027): the total count of carriers and plans in Maricopa County.
- Medicare.gov: the Annual Enrollment Period dates and the Plan Finder tool.
- CMS 2027 Part D parameters: 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.