Medicare Advantage

Choosing a Medicare Advantage plan in Stockton: what HMO, HMO-POS and PPO actually mean for 2027

For 2027, Stockton is looking at 39 Medicare Advantage plans: 9 new, 14 gone since 2026, and 30 still here but changed on premium, deductible, plan type or name, 11 of them under a new name. Below, how the lineup shifted in San Joaquin County and what to compare, with no plan ranked or recommended.

STOCKTON, Calif. — As the Annual Enrollment Period for 2027 Medicare coverage opens Oct. 15, 2026, San Joaquin County shoppers will see a lineup that leans heavily toward one plan type. Of the 39 Medicare Advantage plans offered in the county for 2027, 31 are HMOs, 2 are HMO-POS and 6 are PPOs, according to the CMS Medicare Advantage Landscape Source File. No PFFS (Private Fee-for-Service) plans are on the county menu next year.

The letters after a plan's name matter. They tell you how the network works, whether you'll need a referral, and what happens if you see a doctor outside the plan.

How do Medicare Advantage plans in Stockton split by type for 2027?

In San Joaquin County — the county Stockton sits in — the 2027 Medicare Advantage menu breaks down this way: 31 HMO plans, 2 HMO-POS plans and 6 PPO plans, for 39 total from 11 carriers. Counting HMO-POS as a kind of HMO, 33 of the 39 plans use an HMO structure.

That mix matters because plan type shapes everyday decisions: which doctor you can see, whether you need a referral, and what the plan pays if you're treated outside the network. The full roster of 2027 plans in the county is in the table below.

What does HMO mean, and which carriers offer HMO plans in San Joaquin County for 2027?

An HMO (Health Maintenance Organization) plan asks you to use doctors, hospitals and pharmacies inside the plan's network, and in most cases you'll pick a primary care doctor and get a referral before seeing a specialist. Out-of-network care generally is not covered except for emergencies or urgent care.

For 2027, the carriers offering HMO plans in San Joaquin County are, in alphabetical order: Aetna (CVS Health), Alignment Health Plan, Blue Shield of California, Centene (WellCare), Health Plan of San Joaquin / Mountain Valley Health Plan Advantage D-SNP (HMO), Humana, Imperial Health Plan of California, Inc., Kaiser Permanente, and SCAN Health Plan.

HMOs can be a good fit for people whose regular doctors are already in the plan's network and who don't travel often. If you split time between Stockton and another state, check how the plan covers care away from home before you enroll.

What is an HMO-POS plan, and who offers one in the county for 2027?

An HMO-POS (Point of Service) plan works like an HMO most of the time but includes a limited option to get some services out-of-network — usually at a higher cost share. The specifics (which services, which providers and how much) are set by each plan's documents.

For 2027, two carriers offer HMO-POS plans in San Joaquin County: Aetna (CVS Health) and UnitedHealthcare. The county's 2027 lineup includes 2 HMO-POS plans in total.

What does PPO mean, and which carriers offer PPO plans in Stockton for 2027?

A PPO (Preferred Provider Organization) plan has a network, but it will also pay for care from out-of-network providers who accept Medicare — typically with higher cost-sharing than you'd pay in-network. Referrals to see specialists are generally not required.

For 2027, three carriers offer PPO plans in San Joaquin County: Alignment Health Plan, Elevance Health (Anthem) and Humana. There are 6 PPO plans among the 39 total in the county.

PPOs can be worth a look if you want flexibility to see providers outside the plan's network, or if you travel and want more straightforward coverage when you're away. The trade-off tends to be in cost-sharing — read the plan's Evidence of Coverage for the details.

What about PFFS plans in San Joaquin County for 2027?

A PFFS (Private Fee-for-Service) plan sets its own payment terms, and any Medicare-approved provider who agrees to the plan's terms can treat you — some may not. There are no PFFS plans in the San Joaquin County 2027 Medicare Advantage lineup, so this type isn't a choice for Stockton-area shoppers next year.

How should I decide between an HMO, HMO-POS and PPO in Stockton?

Start with your doctors. Call the clinics and specialists you already use and ask which 2027 plans they'll be in. If your providers are all in one network, an HMO or HMO-POS may fit. If you want to keep options open — including out-of-network — a PPO leaves more room, usually at a higher cost when you go outside the network.

Then think about travel, referrals and prescriptions. HMOs often require referrals; PPOs often don't. Of the 39 Medicare Advantage plans in the county for 2027, most include drug coverage, but check each plan's formulary against the medicines you take. The Medicare Plan Finder at medicare.gov lets you enter your drugs and pharmacies to see how a specific plan would handle them.

What is changing in the county's 2027 lineup?

Compared with 2026, the San Joaquin County menu shrinks from 44 plans and 12 carriers to 39 plans and 11 carriers. For 2027, 14 plans are not returning, 9 are new, and 11 have been renamed. If your current plan is affected, the specifics will be in your Annual Notice of Change, which plans mail in September.

If you do nothing between Oct. 15 and Dec. 7, 2026, and your plan is offered again, you'll stay in it for 2027 with any changes the ANOC spells out. If your plan is leaving the market, Medicare will send a notice explaining your options and the Special Enrollment Period that applies.