Blue Shield of California Medicare Supplement Plans

Blue Shield of California is one of the Medicare Supplement carriers we represent. This page covers what they actually sell in 2026, who regulates them, and where they differ from the other Medigap carriers on this site. Checked against Blue Shield’s filed 2026 plan documents in August 2026.

Blue Shield of California is not Anthem Blue Cross

These are two unrelated companies. Anthem Blue Cross is the Blue Cross licensee in California, Blue Shield of California is the Blue Shield licensee, and they compete with each other. There is no such company as “Blue Cross and Blue Shield of California.” If you are comparing quotes from both, you are comparing two separate carriers with separate rates, separate underwriting and, as covered below, separate regulators.

The plans Blue Shield sells in 2026

Blue Shield offers five Medicare Supplement plans to new applicants: Plan A, Plan G, Plan G Extra, Plan N and Plan F Extra. “G Extra” and “F Extra” are not extra Medigap letters. They are the standardized Plan G and Plan F benefit sets with additional non-Medicare benefits attached, which California permits. SB 407 later excluded those add-on benefits from the birthday rule value test, which matters further down this page.

Standardized Medigap benefits are set by federal law and are identical from carrier to carrier for a given letter. What differs between carriers is price, service and any non-Medicare extras. SilverSneakers is a Blue Shield addition, not part of the standardized benefit set. Plan F Extra is not shown because it is closed to anyone who became Medicare eligible on or after 1/1/2020. Its medical benefits are the standardized Plan F set, which is Plan G plus the Part B deductible.

Blue Shield does not sell Plan K, Plan L, Plan M or a High Deductible Plan G. Their High Deductible Plan F closed to new enrollment on 9/30/2019. Plan G Inspire was withdrawn effective 1/1/2025 and is not in the 2026 lineup, though at the time of writing Blue Shield’s own consumer marketing page still lists it. The filed Summary of Benefits and Evidence of Coverage documents are the reliable source.

Plan A and Plan F Extra do not have their own pages. Plan A is rarely the right answer once Plan G and Plan N are on the table, and F Extra is closed to anyone who became Medicare eligible on or after 1/1/2020. Call us if you want either one priced.

Plan F Extra is closed to most people

Plan F, in every form including F Extra, is closed to anyone who first became eligible for Medicare on or after 1/1/2020. This is federal law (MACRA), not a Blue Shield rule. You can apply for F Extra only if you turned 65 before 1/1/2020, or became Medicare eligible through disability before that date. If you are newly turning 65 today, F Extra is not an option and Plan G is the closest equivalent. The practical difference between F and G is the Part B deductible, which is $283 in 2026.

Blue Shield Medigap is regulated by the DMHC, not the Department of Insurance

This is worth understanding before you need to use it.

California has two health coverage regulators. Most Medicare Supplement policies are insurance products regulated by the California Department of Insurance. Blue Shield of California’s Medicare Supplement plans are not. They are issued by California Physicians’ Service, a Knox-Keene licensed health care service plan, and they are regulated by the Department of Managed Health Care.

You can see it in the contract language. Blue Shield’s 2026 Evidence of Coverage contains a section headed “California Department of Managed Health Care Review,” gives the DMHC Help Center number, and describes the Independent Medical Review process. The contract calls you a Subscriber, calls what you pay Dues rather than premium, and is styled an Evidence of Coverage and Health Service Agreement. That is Knox-Keene terminology throughout.

What this means in practice:

• Complaints go to the DMHC at 1-888-466-2219, not to the Department of Insurance at 1-800-927-4357. Calling the wrong one costs you time.
• You have Independent Medical Review rights through the DMHC, which is a meaningful process for disputed medical necessity decisions.
• The governing statute is Health and Safety Code sections 1358.11 and 1358.12, not Insurance Code sections 10192.11 and 10192.12. SB 407 amended both sets in parallel in 2019, so the substantive birthday rule is the same either way, but if you are reading the law, read the right code.

One exception worth naming: the vision benefit inside G Extra and F Extra is administered by VSP and underwritten by Blue Shield of California Life and Health Insurance Company, which is a separate, Department of Insurance regulated entity. The medical Medigap contract itself is DMHC regulated.

The California Birthday Rule at Blue Shield

California’s Birthday Rule lets you switch Medigap plans once a year without medical underwriting, as long as you move to a plan with equal or fewer benefits. The statutory window is at least 60 days beginning on your birthday. See our explanation of how the Birthday Rule works in California for the general version.

Two Blue Shield specifics:

• Their “Extra” plans count as equal to the baseline plan. Blue Shield treats Plan G Extra as equal in value to Plan G, and F Extra as equal to F, because SB 407 excludes new and innovative benefits from the equal-or-lesser-value test. So a Plan G holder can move to G Extra during their birthday window without underwriting. Blue Shield’s published materials describe it this way. Given that their own documents disagree about the birthday window itself, confirm this in writing before you count on it.
• Blue Shield’s own two documents disagree about when the window opens. Their broker-facing Guaranteed Acceptance Guide describes a window running from 60 days before the first day of your birthday month through 60 days after your birthday, which is wider than the statute requires. Their consumer page describes a window starting on the first day of your birthday month, which is later than the broker guide version but still earlier than the statutory floor. We are not going to tell you which one applies to your application. Call us or call Blue Shield and confirm the date in writing before you rely on the earlier start.

Moving to a plan with richer benefits is available year-round, but it requires a full Statement of Health and underwriting approval.

What comes with every Blue Shield Medigap plan

• SilverSneakers is included on all five plans at no additional cost, including basic gym access. This is one of the few Medigap carriers where the fitness benefit is on every plan rather than the richer ones only.
• A 7% household saving if two people age 65 or over share the same residence and mailing address and are accepted in the same benefit plan, with coverage issued under one plan. Note the catch: if the two of you later move to different plans, you lose it. Tobacco users and the closed plan blocks are excluded.
• A Welcome to Medicare rate saving for people new to Part B who apply within six months of enrolling. It does not apply to Plan A, F Extra or G Extra, so in practice it is a Plan G and Plan N benefit. We do not publish the amount here because it changes with the rate cycle. Ask us what it is today.
• Discount programs that are not insurance benefits: reduced rates on acupuncture, chiropractic and massage through ChooseHealthy, hearing aid discounts through EPIC Hearing Healthcare, vision discounts even on the plans without a vision benefit, and a small monthly saving for autopay.

Under 65 and on Medicare through disability

California requires Medigap carriers to sell to people who qualify for Medicare through disability, and Blue Shield offers all five of its plans to this group. Two things to know:

• End stage renal disease is excluded. If you qualified for Medicare through ESRD, Blue Shield will not issue. This is the California rule, not a Blue Shield choice, and SB 242, which would have changed it, did not pass.
• There is no underwritten path. Blue Shield’s materials describe under 65 enrollment only through guaranteed acceptance, generally within six months of your Part B enrollment. If you are outside that window, talk to us before you apply.

Plan F Extra follows the same federal rule for this group as for everyone else. You can apply only if you first became Medicare eligible before 1/1/2020, by any route. Someone who has been on Medicare through disability since 2014 does qualify. Someone who became eligible in 2021 does not.

How Blue Shield prices these plans

Blue Shield Medigap is attained age rated in California. Your rate is based on your age and increases automatically each year as you get older, on a fixed annual schedule rather than on your policy anniversary. Blue Shield’s 2026 documents set that annual adjustment date at July 1.

Attained age rating usually looks cheapest at 65 and climbs fastest over time. Issue age and community rated policies from other carriers can start higher and rise more slowly. Which one wins depends on how long you hold the policy, and that is a conversation worth having before you buy on first-year price alone.

We do not publish premiums on this site. Rates change, they vary by age and county, and a number on a web page is the fastest way to give someone the wrong expectation.

An honest read on Blue Shield Medigap

Blue Shield is a serious Medigap carrier in California with a large in-force block. SilverSneakers on every plan and the DMHC’s Independent Medical Review process are genuine advantages. The G Extra to G birthday rule treatment is a real piece of flexibility.

Against that: they do not sell High Deductible G, which is the plan we would point a healthy, cost-focused 65-year-old toward, and they do not sell K, L or M. Attained age rating means the rate you are quoted at 65 is not the rate you will pay at 75. And no carrier is the right answer in every California county. If Blue Shield is not the best fit for you, we will tell you so.

We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Assistance Program (in California, HICAP at 1-800-434-0222) to get information on all of your options.

California Health Agents is a licensed independent insurance agency, NPN 14924332. We are not affiliated with or endorsed by the United States government, the federal Medicare program, Covered California, the California Department of Insurance, or the Department of Managed Health Care. Enrollment in a Medicare Advantage or Part D plan depends on contract renewal. Plan availability, benefits and premiums vary by county. Quotes are estimates and are not a contract, guarantee of coverage, or offer of insurance.