Medicare Advantage

Aetna's 2027 Medicare Advantage plans in Stockton: two choices, one renamed

STOCKTON, Calif. — Fall 2026. As the Annual Enrollment Period for 2027 coverage runs from October 15 to December 7, 2026, Aetna is returning to San Joaquin County with two Medicare Advantage plans — the same count it offered this year, with one plan carrying a new name. If you live in or near Stockton and have an Aetna plan now, or are weighing one for next year, here is what the public CMS data shows about the carrier's 2027 lineup — and how to check any plan against your own doctors and prescriptions before the December 7 deadline.

MyMedicarePlans.org is an independent news and education site. We are not Aetna, and Aetna is one of several carriers selling Medicare Advantage in the county.

How many Aetna Medicare Advantage plans are offered in Stockton for 2027?

Stockton is in San Joaquin County, where Aetna (which CMS groups under Aetna (CVS Health)) is offering 2 Medicare Advantage plans for 2027. By plan type, that is 1 HMO and 1 HMO-POS. Both plans include prescription drug coverage.

Aetna is not offering any Special Needs Plans in the county for 2027 — no D-SNP, C-SNP or I-SNP. The table on this page lists each plan by name and type.

What are the Aetna plan names in San Joaquin County for 2027?

For 2027, Aetna's two plans in the county are Aetna Medicare Signature (HMO) and Aetna Medicare Value Plus (HMO). Both include drug coverage. We are not permitted to list premiums, copays, benefits, networks or star ratings here — those come from the plan's own Evidence of Coverage, from Medicare.gov's Plan Finder, or by calling 1-800-MEDICARE.

A detail worth flagging: Aetna Medicare Value Plus was listed as an HMO-POS in 2026 under the same name, and CMS data shows it has been renamed for 2027 while remaining an HMO-POS plan. If you are enrolled in it, read your Annual Notice of Change (ANOC) carefully — any name change, benefit change or cost change for 2027 is detailed there.

What is new or not returning in Aetna's 2027 Stockton lineup?

In San Joaquin County, Aetna is adding 0 new Medicare Advantage plans for 2027 and discontinuing 0. One plan is renamed. The CMS Landscape Source File for 2027 shows the same two-plan footprint it had in 2026.

That is quieter news than you may see in other markets, where carriers sometimes pull plans or launch new ones. For current Aetna members, the practical point is simple: your plan is on the 2027 list, but review the ANOC Aetna mailed in late September for any cost, benefit, drug formulary or network changes effective January 1.

How do I check an Aetna plan against my doctors and prescriptions before December 7?

The fastest way is Medicare.gov's Plan Finder. You can enter your ZIP code, add your prescriptions and preferred pharmacy, and see each plan's drug costs and formulary status side by side. The tool also shows which plans contract with specific providers, though confirming your doctor is in-network is best done by calling the provider's office and the plan directly.

A short checklist before you commit for 2027:

• Pull your current drug list, dosages and preferred pharmacy.
• List the doctors and specialists you want to keep.
• Run both Aetna plans — and any other carrier's plans you are considering — through Plan Finder with that information.
• Call the plan to confirm doctor participation for the 2027 plan year.
• Call 1-800-MEDICARE (TTY 1-877-486-2048) if you want help from Medicare directly, 24 hours a day, seven days a week.

Remember that networks and formularies can change from year to year, even when a plan name stays the same.

What other 2027 Medicare rules should Stockton residents keep in mind?

A few program-level figures are already confirmed for 2027. The Part D out-of-pocket cap rises to $2,400 in 2027 (up from $2,100 in 2026). The Part D maximum deductible is $700 in 2027 (up from $615 in 2026). CMS has also set the Part D national base beneficiary premium at $41.33 for 2027 — this is a formula input, not what any specific plan will charge.

CMS has not yet announced the 2027 Part B standard premium and deductible or the 2027 IRMAA income brackets; those are typically published later in the fall. Watch Medicare.gov for the official numbers rather than relying on estimates.

Enrollment dates to keep in mind:

• Annual Enrollment Period: October 15 – December 7, 2026. Changes take effect January 1, 2027.
• Medicare Advantage Open Enrollment Period: January 1 – March 31, 2027, if you are already in a Medicare Advantage plan and want to switch once.
• Doing nothing means your current plan renews for 2027 if it is offered, with any changes described in your ANOC.

What other Medicare Advantage choices exist in San Joaquin County?

Aetna is one of 11 carriers offering Medicare Advantage in the county for 2027, for a total of 39 plans across all carriers. If an Aetna plan does not fit your doctors, drugs or budget, you have other options to compare side by side on Plan Finder. We cannot rank carriers or plans or point you to one over another — that call is yours, based on your providers, prescriptions and preferences.