Medicare Advantage
UnitedHealthcare Medicare Advantage in California for 2027: 42 Plans, County by County
SACRAMENTO — For the 2027 plan year, UnitedHealthcare is offering 42 Medicare Advantage plans across California, according to the CMS Medicare Advantage Landscape Source File for CY2027. The lineup includes a mix of HMO, HMO-POS and PPO plans, along with Chronic Condition Special Needs Plans aimed at people with specific health conditions. Because Medicare Advantage is sold county by county, a plan on the statewide list may or may not be available where you live.
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Key takeaways
- UnitedHealthcare has 42 Medicare Advantage plans in California for 2027, and every one of them includes drug coverage.
- The California Medicare Advantage market for 2027 includes 36 carriers altogether, offering 394 plans statewide.
- Two UnitedHealthcare plans are new for 2027 and three from 2026 are not returning, so some current members will see a change.
- The Annual Enrollment Period runs October 15 through December 7, 2026, and the choice you make takes effect January 1, 2027.
| Fact | Figure | Source |
|---|---|---|
| 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.
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What is UnitedHealthcare offering in California for Medicare Advantage in 2027?
UnitedHealthcare is offering 42 Medicare Advantage plans in California for 2027. By plan type that breaks down to 5 HMO plans, 36 HMO-POS plans and 1 PPO plan. All 42 plans include Part D prescription drug coverage, according to the CMS Landscape file.
Within that total, Special Needs Plans are limited to Chronic Condition SNPs: there are 11 C-SNPs, 0 Dual-Eligible SNPs (D-SNPs) and 0 Institutional SNPs (I-SNPs). C-SNPs are designed for people living with qualifying chronic conditions and have their own eligibility rules. For context, 36 carriers are participating in California's Medicare Advantage market for 2027, with a combined 394 plans statewide.
Which UnitedHealthcare plans reach the most California counties in 2027?
Among UnitedHealthcare's 2027 California plans, the widest county reach belongs to the UHC Complete Care Support CA-8AP (HMO-POS C-SNP), offered in 7 counties, and the AARP Medicare Advantage Patriot No Rx CA-MA1P (HMO-POS), offered in 5 counties. Most of the remaining plans are offered in 1 to 4 counties each.
The full plan-by-plan list, with county counts for each, appears in the table on this page rather than being repeated here. Keep in mind that "offered in 2 counties" or "offered in 5 counties" tells you how broadly a plan is listed statewide, not whether it is available in your specific county.
What is new or not returning from UnitedHealthcare in California for 2027?
For 2027, UnitedHealthcare has 2 new Medicare Advantage plans in California and 3 plans from 2026 that are not returning. The new plans are AARP Medicare Advantage from UHC CA-45 (HMO-POS) and AARP Medicare Advantage from UHC CA-46 (HMO-POS), each offered in 1 county.
Several plans have been renamed carrying into 2027. Examples include AARP Medicare Advantage from UHC CA-33P (HMO-POS), previously CA-43; AARP Medicare Advantage from UHC CA-34P (HMO-POS), previously CA-44; the AARP Medicare Advantage Giveback CA-30P, CA-31P and CA-32P plans (previously CA-19, CA-20 and CA-21); AARP Medicare Advantage Patriot No Rx CA-MA1P (previously CA-MA01); UHC Sharp Complete Care CA-15P and UHC Sharp Complete Care Support CA-6AP (previously branded as UHC Complete Care); and UHC Sharp Medicare Advantage CA-026P (previously an AARP-branded plan). If your current plan is not returning, Medicare will mail you a notice explaining your options; if it was renamed, your coverage ID may change even though the plan continues. The complete rename and status details are shown in the table.
How do I check whether a UnitedHealthcare plan is offered in my California county and covers my doctors and drugs?
To confirm whether a specific UnitedHealthcare plan is offered in your California county for 2027 and whether it covers your doctors and prescriptions, use the Medicare Plan Finder at medicare.gov or call 1-800-MEDICARE (TTY 1-877-486-2048), available 24 hours a day, 7 days a week. California has 58 counties, and a plan listed statewide may not be sold in yours.
Three things are worth checking before you decide: whether the plan is available at your ZIP code, whether your doctors and preferred hospitals are in-network, and whether your prescriptions are on the plan's formulary at a cost that works for you. Plan-specific details — premiums, deductibles, copays, benefits, networks, drug lists and star ratings — come from the plan's Evidence of Coverage, Summary of Benefits and provider and pharmacy directories, not from this article.
What should California Medicare beneficiaries do before December 7, 2026?
Before December 7, 2026, California Medicare beneficiaries should review the Annual Notice of Change (ANOC) their current plan mailed in late September, confirm the plan is still offered in their county for 2027, and compare it against other options on the Medicare Plan Finder. The Annual Enrollment Period runs October 15 through December 7, 2026, and the choice you make during that window takes effect January 1, 2027.
A short checklist that works for most people:
- Read the ANOC and note anything that changed for 2027.
- List your current doctors, hospitals and prescription drugs (with dosages).
- Run those details through the Plan Finder to see which 2027 plans fit.
- If your plan is not returning, decide between a different Medicare Advantage plan and Original Medicare with a stand-alone Part D plan.
Where can Californians get free help comparing Medicare plans for 2027?
Californians can get free, unbiased help comparing 2027 Medicare plans directly from Medicare. The Medicare Plan Finder at medicare.gov lets you enter your ZIP code, doctors and prescriptions to see every plan available in your county, and 1-800-MEDICARE (TTY 1-877-486-2048) is staffed 24 hours a day, 7 days a week.
You can also request plan documents — the Summary of Benefits, Evidence of Coverage, and provider and pharmacy directories — directly from UnitedHealthcare for any plan you are seriously considering.
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.
2027 plan lineup
UnitedHealthcare Medicare Advantage plans in California for 2027
CMS lists 42 UnitedHealthcare Medicare Advantage plans across California for 2027, alphabetically by carrier, widest county reach first. 35 other carriers also offer plans there.
| Plan | Type | Drug coverage | Counties |
|---|---|---|---|
| UnitedHealthcare 42 plans | |||
| UHC Complete Care Support CA-8AP (HMO-POS C-SNP) | HMO-POS C-SNP | Yes | 7 |
| AARP Medicare Advantage Patriot No Rx CA-MA1P (HMO-POS) | HMO-POS | Yes | 5 |
| AARP Medicare Advantage from UHC CA-0010 (HMO-POS) | HMO-POS | Yes | 4 |
| AARP Medicare Advantage from UHC CA-0005 (HMO-POS) | HMO-POS | Yes | 3 |
| AARP Medicare Advantage from UHC CA-0015 (HMO-POS) | HMO-POS | Yes | 2 |
| AARP Medicare Advantage from UHC CA-006P (HMO-POS) | HMO-POS | Yes | 2 |
| AARP Medicare Advantage from UHC CA-022P (HMO-POS) | HMO-POS | Yes | 2 |
| AARP Medicare Advantage from UHC CA-023P (HMO-POS) | HMO-POS | Yes | 2 |
| AARP Medicare Advantage Giveback from UHC CA-32P (HMO-POS) | HMO-POS | Yes | 2 |
| UHC Complete Care CA-20P (HMO-POS C-SNP) | HMO-POS C-SNP | Yes | 2 |
| UHC Complete Care Support CA-3AP (HMO C-SNP) | HMO C-SNP | Yes | 2 |
| AARP Medicare Advantage from UHC CA-0001 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-0002 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-0007 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-0008 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-0012 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-0024 (PPO) | PPO | Yes | 1 |
| AARP Medicare Advantage from UHC CA-003P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-004P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-005P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-021P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-33 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-33P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-34P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-45 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-46 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-7 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage from UHC CA-9 (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage Giveback from UHC CA-30P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage Giveback from UHC CA-31P (HMO-POS) | HMO-POS | Yes | 1 |
| AARP Medicare Advantage Patriot No Rx CA-MA2 (HMO-POS) | HMO-POS | Yes | 1 |
| UHC Complete Care CA-18P (HMO-POS C-SNP) | HMO-POS C-SNP | Yes | 1 |
| UHC Complete Care CA-19P (HMO-POS C-SNP) | HMO-POS C-SNP | Yes | 1 |
| UHC Complete Care CA-27P (HMO-POS C-SNP) | HMO-POS C-SNP | Yes | 1 |
| UHC Complete Care Support CA-1AP (HMO C-SNP) | HMO C-SNP | Yes | 1 |
| UHC Complete Care Support CA-2AP (HMO C-SNP) | HMO C-SNP | Yes | 1 |
| UHC Complete Care Support CA-4AP (HMO C-SNP) | HMO C-SNP | Yes | 1 |
| UHC Sharp Complete Care CA-15P (HMO-POS C-SNP) | HMO-POS C-SNP | Yes | 1 |
| UHC Sharp Complete Care Support CA-6AP (HMO C-SNP) | HMO C-SNP | Yes | 1 |
| UHC Sharp Medicare Advantage CA-001P (HMO-POS) | HMO-POS | Yes | 1 |
| UHC Sharp Medicare Advantage CA-026P (HMO-POS) | HMO-POS | Yes | 1 |
| UHC Sharp Medicare Advantage ValueRx CA-12P (HMO-POS) | HMO-POS | Yes | 1 |
Source: CMS Medicare Advantage Landscape Source Files, plan years 2026 and 2027. Plans are offered county by county; a plan listed for the state may not be offered in your county. 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 UnitedHealthcare Medicare Advantage plans across California 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. Plans are offered county by county; a plan listed for the state may not be offered in your county. 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.
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Good to know
Frequently asked questions
How many UnitedHealthcare Medicare Advantage plans are offered in California for 2027?
Does a plan on the statewide list mean it is available in my county?
What happens if my UnitedHealthcare plan is not returning in 2027?
When does a 2027 plan choice take effect?
- 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.
Sources and methodology
- 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
- CMS, Medicare Advantage and Part D Landscape Source Files
Figures cited in this article
- CMS — Medicare Advantage Landscape Source File (CY2027): statewide UnitedHealthcare plan counts, plan types, SNP breakdown, drug-coverage counts, and county reach per plan in California.
- CMS — MA Landscape Source Files (CY2026 and CY2027): year-over-year comparison showing new plans, non-returning plans and renamed plans.
- CMS — Medicare enrollment periods (medicare.gov): Annual Enrollment Period dates (October 15 – December 7, 2026) and January 1, 2027 effective date.
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.