Medicare Advantage Plans in San Mateo County, CA

Looking for Medicare Advantage plans in San Mateo County? Enter your ZIP below to compare affordable or $0 premium plans in your area.

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San Mateo County, CA, is home to 6 Medicare Advantage (Medicare Part C) plans in 2024.

Learn more about Medicare Advantage in California or call to speak with a licensed insurance agent who can help you compare San Mateo County Medicare Advantage plans and – if you're eligible – help you enroll.

We represent carriers such as Humana, UnitedHealthcare®, Anthem Blue Cross and Blue Shield, Aetna, Cigna Healthcare, Wellcare, or Kaiser Permanente.

2024 San Mateo Medicare Advantage Plans


San Mateo Medicare Advantage plans can come in several different forms. The two most popular types are HMO and PPO plans.

HMO (Health Maintenance Organization) plans utilize a network of participating doctors and other health care providers around the Bay Area. Care is typically not covered by the plan when received outside of the network. 

PPO (Preferred Provider Organization) plans are also available in San Mateo County in 2024. These plans offer some more flexibility when choosing a doctor and allow for some coverage outside of the plan’s intended network. 

Learn more and review this list of 2024 San Mateo Medicare Advantage plans.

2024 Medicare Advantage plans in San Mateo County

2024 Medicare Advantage Plans in San Mateo
Number of unique plans6
Average monthly premium$36.35
Average (in-network) out-of-pocket maximum$4575.00
Average Medicare Star Rating*3.63

While the number of unique plans in any county can change slightly every year, the table above presents a good idea of what you can expect to see in 2024.

The average monthly premium for Medicare Advantage plans in San Mateo is $36.35 per month in 2024, though there may be plans available where you live that feature different premiums.

Medicare Advantage plans in San Mateo County have an average Medicare Star Rating of 3.63 in 2024.* Plans rated four stars or higher are considered top-rated Medicare plans.

Premiums, deductibles and other costs may vary. The numbers reported in the table above are taken from the Centers for Medicare & Medicaid Services (CMS). A licensed insurance agent will be able to help you review and compare costs for specific plans available in California or wherever you may live.

* Every year, the Centers for Medicare & Medicaid Services (CMS) evaluates plans based on a 5-star rating system.

List of Medicare Advantage plans in San Mateo County

The following table includes cost information and other plan details for Medicare Advantage plans available in San Mateo in 2024.

Plan NamePlan CodeMonthly PremiumDeductibleOut of Pocket MaxPrescription Drug CoverageMedicare Star Rating
AARP Medicare Advantage from UHC CA-0004 (HMO-POS)H0543-028-000$118$360$3800Yes3.5 out of 5 stars
Anthem Prime (HMO)H4161-005-000$0$0$1200YesPlan too new to be measured
Kaiser Permanente Senior Advantage Basic San Mateo (HMO)H0524-065-000$0$0$6000Yes4 out of 5 stars
Kaiser Permanente Sr Adv Enhanced Marin San Mateo (HMO)H0524-031-000$70$0$4200Yes4 out of 5 stars
Senior Advantage Medicare Medi-Cal North P2 (HMO D-SNP)H8794-002-000$30.1$545$3400YesPlan too new to be measured
Wellcare No Premium (HMO)H0562-128-000$0$545$8850Yes3 out of 5 stars

Fall Medicare open enrollment in San Mateo and the Bay Area


Depending on your circumstances, the fall Medicare Open Enrollment Period (also called the Annual Enrollment Period, or AEP) may be the only time you can make changes to your 2023 Medicare coverage.

This 2022 Medicare open enrollment period starts on October 15 and lasts until December 7. This period is open to all eligible Medicare beneficiaries who wish to add, drop or change Medicare plans.

Learn more about your options and find the best Medicare Advantage plan for you in the Bay Area.

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