Medicare Supplement Plans (Medigap) in California 2026

Key California 2026 Takeaways

• Same Medical Protection: The medical coverage for any plan letter (like Plan G) is exactly the same, no matter which insurance company sells it to you.
  

• The California Birthday Rule: People who live in California get a special window every year to switch to a new company without answering any health questions.
  

• No Extra Benefits on Standard Plans: Basic Medigap plans do not cover everyday prescription drugs, routine dental work, or routine eye care.
  

• Plans with Extra Perks: Many insurance companies in California now offer modified plan designs that bundle lifestyle perks right into your standard coverage.

What is a Medicare Supplement plan in California?

A Medigap plan acts as secondary coverage, paying its share after Original Medicare pays its part first for a covered service.

While standard Medigap policies exclude routine dental, vision, hearing care, and prescription drugs, the California insurance market has changed. Now, some carriers offer plans with additional benefits (like Plan G Extra or Innovative Plan G). 

These options build routine eye exams, money for glasses, hearing aid help, and 24/7 phone access to doctors right into standard supplemental Medicare baseline policies.

Types of Medicare Supplement Plans Offered In California

Seniors can choose from standardized plans labeled A-N. To keep you safe, these plans are closely monitored by two state agencies: the California Department of Insurance (CDI) and the Department of Managed Health Care (DMHC). This oversight ensures strong consumer protection and honest, approved pricing.

There are also standard rules to know about. Plans C and F cannot be sold to people who are brand new to Medicare on or after January 1, 2020. However, they remain fully active and renewable for seniors who had coverage before that date. 

Most Popular Medicare Supplement Insurance Plans in California

• Plan G is the top choice for people who are new to Medicare. It has comprehensive coverage, leaving only the Part B annual deductible ($283 in 2026) to be paid out of pocket.
  

• Plan N is a popular choice for people on a budget. It trades small copayments (up to $20 for office visits and up to $50 for emergency room visits if you are not admitted) for lower monthly bills.
  

• High-Deductible Plan G is a smart choice to save money. It has very low monthly premiums while protecting you against major medical events, provided you first meet the annual plan deductible.
  

Here is a simple look at how your out-of-pocket costs work with Plan G versus Plan N:

2026 California Market Disruption Alert

Older policyholders who have long had standard legacy Plan F and Plan G options are seeing their monthly bills increase. Because of changes to the state's plan groups, some seniors are facing rate hikes ranging from 8% to 25%. You can check the premium variations approved by state actuaries across different regions by using the official California Department of Insurance Medigap Premium Comparison Tool. 

Plan N and High-Deductible Plan G are excellent ways to fight this premium inflation. These options have a history of maintaining much more stable prices over time. Also, new rules for standalone Medicare Part D prescription drug plans are changing total costs. Because of this, seniors should review their combined monthly medical and drug expenses to ensure they are not overpaying.

Which California senior are you?

• The Total Predictability Senior (Standard Plan G): You want to know exactly what you will spend. You have a health history that requires frequent doctor visits. You prefer higher, steady monthly bills over unexpected medical costs.
  

• The Active Traveler Senior (Plan G or N): You want total freedom to see any doctor or specialist in the United States. You do not want to worry about HMO networks, medical group approvals, or state lines when you travel.
  

• The Budgeting Senior (Plan N or High-Deductible Plan G): You are mostly healthy and do not see the doctor very often. You want low monthly bills, but you still want strong protection against massive hospital bills.

Medicare Supplement Carriers in California

California has a highly competitive insurance market with many well-known insurers. Even though the medical benefits are identical for each plan letter, the monthly prices, discounts, and extra perks vary by provider.

• Anthem Blue Cross (Blue Cross of California): One of the biggest companies in the state. They are known for offering plans that include extra vision and hearing perks as part of standard coverage.
  

• Blue Shield of California: A very popular local company. Many seniors choose them for their special plan upgrades and their introductory "Welcome to Medicare" price discounts.
  

• AARP/UnitedHealthcare: Sells the majority of plans in California. They use a special pricing structure where your rates do not go up simply because you turn a year older.
  

• Aetna: A well-known national company that offers very low starting prices for standard Plan G and Plan N across many California counties.
  

• Mutual of Omaha: Known for stable, predictable prices over time. They also offer a household discount if more than one person in your home signs up.
  

• Humana: Offers standard nationwide plans, plus additional discount programs for fitness, gym memberships, and healthy living.

Medigap Rates in California by ZIP Code 2026

Prices vary depending on where you live because insurance companies look at local hospital costs and county-by-county health trends. Because of this, a plan in Northern California might have a different monthly price than the exact same plan letter in Southern California. Trying to look up these rates on your own across dozens of websites is confusing and time consuming. SelectQuote makes this simple by comparing all these top national companies side by side using your exact ZIP code.