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HomeMedicare AdvantageCaliforniaStocktonGot a non-renewal letter in Stockton? The 14 Medicare Advantage plans ending in 2027

Medicare Advantage

Got a non-renewal letter in Stockton? The 14 Medicare Advantage plans ending in 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.

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Key takeaways

  • Fourteen Medicare Advantage plans offered in San Joaquin County in 2026 are not returning for 2027; the full list of those plans is below.
  • If your plan is ending, you should get a written non-renewal notice from the carrier, typically mailed in early October.
  • If you do nothing, you move to Original Medicare (Parts A and B) on January 1, 2027, with no Part D drug coverage attached.
  • A plan non-renewal opens a Special Enrollment Period that runs through the end of February 2027, and may trigger a Medigap guaranteed-issue right.
Not returning for 2027Stockton, CA
Video: invisiblepower Video by invisiblepower on Pixabay
Key facts: Medicare in Stockton, California (data as of 2026-06-01)
FactFigureSource
Medicare Advantage plans offered in San Joaquin County (2026)44CMS
Medicare Advantage plans offered in San Joaquin County (2027)39CMS
Plans not returning for 2027 / new for 202714 / 9CMS
Organizations offering Medicare Advantage in San Joaquin County (2026)12CMS
Share of eligible beneficiaries in Medicare Advantage, San Joaquin County55%CMS
Residents age 65 and older, San Joaquin County107,730U.S. Census Bureau
Part B standard monthly premium (2026)$202.90Medicare.gov
Part D out-of-pocket cap (2026)$2,100CMS
Part D out-of-pocket cap (2027)$2,400CMS
Annual Enrollment Period (for 2027 coverage)October 15 – December 7, 2026Medicare.gov
Medicare Advantage Open Enrollment PeriodJanuary 1 – March 31Medicare.gov

Area counts are for the county as a whole and are not a recommendation of any plan. Program figures are set nationally.

STOCKTON, Calif. — If you opened your mailbox this fall and found a letter saying your Medicare Advantage plan will not be offered next year, you are not alone. In San Joaquin County, the county Stockton sits in, 14 Medicare Advantage plans on offer for 2026 are not returning for 2027, according to the CMS Medicare Advantage Landscape Source Files for the current and coming plan years.

That letter is called a non-renewal notice, and it changes what you need to do between now and the end of the Annual Enrollment Period on December 7, 2026.

Which Medicare Advantage plans are not returning in Stockton for 2027?

Fourteen Medicare Advantage plans offered in San Joaquin County in 2026 do not appear in the CMS 2027 Landscape file for the county. In alphabetical order by carrier, the plans not returning are:

For 2027, San Joaquin County will have 39 Medicare Advantage plans offered from 11 carriers, down from 44 plans and 12 carriers in 2026. The table below lists every plan still being offered.

How can I tell if my Stockton Medicare Advantage plan is ending?

The clearest sign is a plan non-renewal letter in the mail, which carriers are required to send if they will not offer your plan in the county in 2027. These letters typically go out in early October, before the Annual Enrollment Period begins on October 15, 2026.

The notice will say that your current plan will end on December 31, 2026, explain that you will be moved to Original Medicare on January 1, 2027 if you do nothing, and point you to other choices. It is different from the Annual Notice of Change (ANOC), which is the booklet you get when your plan IS renewing but with changes for the new year.

If you are not sure which letter you received, check the first page for the words "will not be offered" or "non-renewal." You can also confirm by looking for your plan by name in the list above, or by calling the plan or 1-800-MEDICARE.

What happens if I do nothing after a non-renewal in Stockton?

If your plan is not returning and you do not pick a new one, you will be enrolled in Original Medicare — Part A (hospital) and Part B (medical) — starting January 1, 2027. Your Medicare Advantage coverage simply ends on December 31, 2026.

Two things to know about that default:

The Part D program-level figures confirmed for 2027 are an out-of-pocket cap of $2,400 (up from $2,100 in 2026) and a maximum deductible of $700 (up from $615 in 2026). The 2027 Part B standard premium and deductible, and the 2027 IRMAA income brackets, have not yet been announced; CMS typically publishes them later in the fall.

What are my choices and when is the Special Enrollment Period?

When your Medicare Advantage plan is non-renewed, Medicare gives you a Special Enrollment Period (SEP) that runs from December 8, 2026 through the end of February 2027. During that window you can:

You do not have to wait for the SEP. You can also make a change during the regular Annual Enrollment Period, which runs October 15 – December 7, 2026, with coverage starting January 1, 2027.

For 2027, San Joaquin County has 39 Medicare Advantage plans from 11 carriers to choose from, including HMO, HMO-POS, PPO and Special Needs Plan options. There are also 9 new plans and 11 renamed plans in the county for 2027; the ANOC and Plan Finder have the specifics.

Where should I compare plans in Stockton for 2027?

Go to medicare.gov and use the Plan Finder, which lets you enter your ZIP code, your prescriptions and your preferred pharmacies to see what each plan would cost and cover for you. The Plan Finder is the official, personalized tool — it is the only place where plan premiums, drug prices and provider networks are shown together for your situation.

You can also call 1-800-MEDICARE (1-800-633-4227), 24 hours a day, 7 days a week, to talk through your options or confirm whether a plan is being offered in San Joaquin County for 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.

$0$50$100$150$200200820122016202020242026

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 San Joaquin County

55% are on Medicare Advantage
(MA penetration in San Joaquin County)
55%
45%
Medicare Advantage Medicare Supplement (Medigap) Original Medicare only
U.S. average

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.

Not returning for 2027

Medicare Advantage plans in San Joaquin County not returning for 2027

These 14 plans are offered in San Joaquin County for 2026 and are not in CMS’s 2027 file for the county. A member of one of them gets a non-renewal letter from the plan and has a Special Enrollment Period to choose new coverage.

PlanTypeDrug coverageFor 2027
Alignment Health Plan 3 plans
Alignment Health Freedom (PPO)PPOYesReturning
Alignment Health Honor+ Plan (HMO)HMOYesReturning
Alignment Health My Choice (PPO)PPOYesReturning
Centene (WellCare) 2 plans
Wellcare Health Net Dual Align (HMO D-SNP)HMO D-SNPYesReturning
Wellcare Simple (HMO)HMOYesReturning
Central Health Medicare Plan 5 plans
Central Health Classic Care Plan III (HMO)HMOYesReturning
Central Health Dual Access Plan (HMO D-SNP)HMO D-SNPYesReturning
Central Health Embrace Care Plan (HMO C-SNP)HMO C-SNPYesReturning
Central Health Embrace Choice Plan (HMO C-SNP)HMO C-SNPYesReturning
Central Health Valor Care Plan (HMO)HMOYesReturning
Elevance Health (Anthem) 3 plans
Anthem Kidney Care (PPO C-SNP)PPO C-SNPYesReturning
Anthem Medicare Advantage (HMO-POS)HMO-POSYesReturning
Anthem Prime (HMO-POS)HMO-POSYesReturning
SCAN Health Plan 1 plan
SCAN MyChoice (HMO)HMOYesReturning

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

HMO, PPO and Special Needs Plans in San Joaquin County for 2027

39
Medicare Advantage plans
11
Carriers
31
HMO plans
2
HMO-POS plans
6
PPO plans
5
Dual Special Needs (D-SNP)
12
Chronic-condition (C-SNP)
  • Aetna (CVS Health) 2 plans: HMO, HMO-POS
  • Alignment Health Plan 13 plans: HMO, PPO
  • Blue Shield of California 2 plans: HMO
  • Centene (WellCare) 2 plans: HMO
  • Elevance Health (Anthem) 1 plan: PPO
  • Health Plan of San Joaquin / Mountain Valley Health Plan Advantage D-SNP (HMO) 1 plan: HMO
  • Humana 5 plans: HMO, PPO
  • Imperial Health Plan of California, Inc. 4 plans: HMO
  • Kaiser Permanente 3 plans: HMO
  • SCAN Health Plan 5 plans: HMO
  • UnitedHealthcare 1 plan: HMO-POS

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.

Compare with a licensed agent

See Medicare options serving Stockton & speak with a licensed agent

Medicare Advantage companies in San Joaquin County

By local enrollment size · informational, not a ranking
CompanyLocal enrollmentPlans offeredLocal agentsAction
Kaiser PermanenteRegional—Yes
Alignment Healthcare Usa LLCRegional—Yes
HumanaNational—Yes
Scan GroupRegional—Yes
Centene (WellCare)National—Yes
Imperial Health Plan of CaliforniaRegional—Yes
Enrollment data: CMS Medicare Advantage enrollment by company (county level). Listed by enrollment size, largest first — this is not a ranking, recommendation, or endorsement of any company or plan.

Provided by licensed insurance partners; MyMedicarePlans.org may be compensated. Not a ranking or endorsement of any plan.

Explore

When can you enroll? An interactive year

JFMAMJJASOND
October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

Explore

The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

Good to know

Frequently asked questions

When will I get the non-renewal letter if my Stockton plan is ending?
Carriers typically mail non-renewal notices in early October, before the Annual Enrollment Period begins on October 15, 2026. The letter will clearly say your plan will not be offered for 2027 and that your coverage ends December 31, 2026.
Do I lose Medicare if my Medicare Advantage plan is not returning?
No. You keep Medicare. If you do nothing, you are automatically moved to Original Medicare (Parts A and B) on January 1, 2027. You just will not have Part D drug coverage unless you actively enroll in a standalone drug plan or in a new Medicare Advantage plan that includes drugs.
How long do I have to pick a new plan after a non-renewal?
You have a Special Enrollment Period from December 8, 2026 through the end of February 2027 to join a new Medicare Advantage plan or a standalone Part D plan. You can also make a choice during the regular Annual Enrollment Period, which ends December 7, 2026, for coverage starting January 1, 2027.
Can I buy a Medigap policy if my Medicare Advantage plan ends?
Yes, in many cases. A plan non-renewal is one of the situations that triggers a federal Medigap guaranteed-issue right, meaning certain Medigap policies must be sold to you without medical underwriting within a set window. California also has additional Medigap rules; for state-specific details, contact the California Department of Insurance.
Sources & further reading
  • 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 Stockton

Sources and methodology

Figures cited in this article

  • CMS Medicare Advantage Landscape Source Files (CY2026 and CY2027): the list of plans not returning in San Joaquin County and the 2027 plan and carrier counts.
  • Medicare.gov: the Annual Enrollment Period dates, the Special Enrollment Period for non-renewed plans, and the Plan Finder tool.
  • CMS: the confirmed 2027 Part D out-of-pocket cap and maximum deductible.

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.

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