Choosing the right Medicare Advantage Plan in California can be overwhelming, especially with 465 different options available in 2025. Each plan varies by provider, premium cost, benefits, and coverage area. With nearly 6.6 million Medicare beneficiaries in the state, finding a plan that matches your healthcare needs and budget is essential.
To help narrow down your options, we’ve analyzed the latest data from multiple trusted sources—including U.S. News, Forbes, and NerdWallet—and compiled a list of the top 5 Medicare Advantage plans in California based on overall value, customer satisfaction, quality ratings, and cost.
What Is a Medicare Advantage Plan?
Medicare Advantage (Part C) plans are offered by private insurance companies approved by Medicare. These plans provide all the benefits of Original Medicare (Part A and Part B), and many include additional services like dental, vision, hearing, prescription drug coverage (Part D), fitness memberships, and even transportation or meal delivery.
Unlike Original Medicare, Medicare Advantage plans often come with network restrictions (HMO or PPO), and costs can vary significantly depending on the provider, service area, and the plan you select.
Medicare in California: Key 2025 Statistics
- 465 Medicare Advantage plans available across California
- $12.48 average monthly premium in 2025 (down from $16.25 in 2024)
- 100% of Medicare-eligible individuals have access to at least one $0 premium plan
- 35 private insurers offering Medicare Advantage plans in California
- Over 55% of California Medicare beneficiaries are enrolled in Medicare Advantage (as of late 2024)
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BOOK A CALLTop 5 Medicare Advantage Plans in California (2025)
1. Kaiser Permanente Medicare Advantage Plan
Why it stands out: Kaiser Permanente consistently receives top marks for customer satisfaction and quality of care. In 2025, Kaiser continues to offer highly rated Medicare Advantage HMO plans across most of California.
- Star Rating: 5 out of 5 stars (CMS 2025)
- Monthly Premium: As low as $0 for select plans
- Out-of-Pocket Maximum: Competitive, often below $5,000/year
- Extra Benefits: Vision, dental, hearing, Silver&Fit fitness membership
Pros:
- Integrated care model with coordinated services
- High member satisfaction and preventive care ratings
- Robust provider network within the system
Cons:
- HMO model limits out-of-network access
- Must receive most care within Kaiser facilities
2. SCAN Health Plan
Why it stands out: Founded in Long Beach, SCAN Health Plan specializes in serving older adults in California. With a strong local reputation and highly-rated service, SCAN remains a top choice in 2025.
- Star Rating: 4.5 out of 5 stars
- Monthly Premium: $0 plans available
- Out-of-Pocket Maximum: Generally $3,000–$5,000
- Extra Benefits: In-home care, telehealth, transportation, and fitness programs
Pros:
- Focused on senior well-being and independence
- Highly rated for customer service and value
- Offers robust supplemental benefits
Cons:
- Limited to certain counties
- Primarily HMO network structure
3. UnitedHealthcare Medicare Advantage (offered through AARP)
Why it stands out: UnitedHealthcare is one of the largest Medicare Advantage insurers nationwide. In California, their plans are co-branded with AARP and offer widespread access, flexible options, and strong pharmacy partnerships.
- Star Rating: 4 to 4.5 stars, depending on the region
- Monthly Premium: $0 plans available; others range up to $30/month
- Out-of-Pocket Maximum: Around $3,400–$6,700
- Extra Benefits: Dental, vision, hearing, Renew Active fitness, OTC credits
Pros:
- Large national and regional provider networks (including PPO options)
- Strong Part D drug coverage integration
- Extensive support for chronic care management
Cons:
- Premiums vary by region
- Not all plans rated equally across counties
4. Aetna Medicare Advantage Plans
Why it stands out: Aetna, a CVS Health company, has been expanding its footprint in California with competitive Medicare Advantage offerings. These plans are known for affordability and strong chronic condition support.
- Star Rating: 4.5 stars for most plans
- Monthly Premium: $0 in many counties
- Out-of-Pocket Maximum: Typically around $3,000–$5,500
- Extra Benefits: OTC items, dental, hearing, vision, gym membership, caregiver support
Pros:
- Broad provider network, including HMO and PPO choices
- Well-regarded member services
- Strong care coordination for diabetes, heart conditions, and more
Cons:
- Not available in every California zip code
- Some plans may require referrals for specialists
5. Alignment Health Plan
Why it stands out: A fast-growing California-based company, Alignment Health offers innovative Medicare Advantage plans with unique services like 24/7 concierge care.
- Star Rating: 4.5 stars (2025 CMS ratings)
- Monthly Premium: Several $0 premium plans
- Out-of-Pocket Maximum: $3,500–$6,700 depending on the plan
- Extra Benefits: Virtual care, grocery and utility stipends, in-home visits, care concierge
Pros:
- Focus on underserved and multicultural populations
- Offers innovative virtual and in-home services
- Highly personalized customer support
Cons:
- Coverage limited to certain areas
- Newer company, smaller network compared to larger insurers
How to Choose the Right Medicare Advantage Plan in California
When evaluating your options, here are some factors to consider:
- Provider Network: Ensure your doctors and specialists are in-network.
- Drug Coverage: Check your medications against the plan’s formulary.
- Premiums & Out-of-Pocket Costs: Consider the total cost, not just the monthly premium.
- Extra Benefits: Review dental, vision, fitness, transportation, and OTC perks.
- Star Ratings: Look for plans with 4 or more stars for quality and member satisfaction.
- Service Area: Plans vary by ZIP code—make sure the plan is offered in your area.
Medicare Advantage vs. Original Medicare: A Quick Comparison
Feature | Original Medicare | Medicare Advantage |
Doctor Choice | Any provider nationwide | Network-based (HMO/PPO) |
Drug Coverage | Requires Part D plan | Often included |
Dental/Vision | Not included | Often included |
Premiums | Part B premium + Part D | Usually $0–low premium |
Out-of-Pocket Limit | No limit | Yes, capped annually |
Tips for Enrolling in a Medicare Advantage Plan
- Annual Enrollment Period (AEP): October 15 – December 7
- Medicare Advantage Open Enrollment: January 1 – March 31 (plan switches only)
- Special Enrollment Periods: Triggered by life events like moving or losing coverage
Use Medicare’s Plan Finder Tool or consult a licensed Medicare advisor to compare plans specific to your ZIP code and health needs.
Final Thoughts
California’s Medicare Advantage market is competitive, with excellent options that cater to different health needs and preferences. Whether you prioritize cost, convenience, or comprehensive benefits, there’s likely a high-quality plan available in your area.
By choosing a plan with strong customer ratings, reasonable out-of-pocket costs, and the benefits you need, you can take better control of your healthcare in 2025 and beyond.
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