California Medicare plan changes for 2027
Is my Medicare plan ending in Costa Mesa, CA?
CMS's 2027 plan list does not show 21 plans from 9 companies in Orange County. See which companies, your options in Costa Mesa, key dates and how to get help choosing.
9
companies with plans CMS's 2027 list does not show in Orange County
21
plans CMS's 2027 list does not show here
22,357+
people CMS reports enrolled in Orange County (September 2026)
What CMS's lists show for Costa Mesa
Costa Mesa is in Orange County, California, so this page uses CMS's lists for Orange County.
CMS's 2027 plan list does not show 21 Medicare Advantage plans from 9 companies in Orange County that CMS's 2026 plan list showed there. CMS reports at least 22,357 people enrolled in those plans as of September 2026. CMS hides enrollment counts of 10 or fewer, so "at least" means the real number can be higher.
That is what CMS's data shows. It is not a notice about your coverage, and your plan's written notice is what tells you what is happening to it.
Some cities cross a county line. If you are not sure which county you live in, check your member card or your plan's letter, or call 855-367-1095 and we will look it up with you.
Your options in Costa Mesa
- Stay with your current company if it still offers a plan where you live. Ask the plan which plan you would be moved to, and check that your doctors and drugs are covered under it before you decide anything.
- Choose a different Medicare Advantage plan that is offered in Orange County. We can pull up the plans available at your address and go through them with your doctors and prescriptions in front of us.
- Go back to Original Medicare, with a Medicare supplement (Medigap) plan and a stand-alone Part D drug plan if you need them. The rules for Medigap, including whether you must answer health questions, depend on your situation and state, so we will go through that with you before you give anything up.
- Compare the full picture, not just the monthly cost: your doctors and hospitals, your prescriptions and pharmacy, and what you could pay in a bad year.
- Some plans on this page are special needs plans. If you have Medicaid or a chronic condition, tell us when you call so we look at plans built for your situation first.
What to do this week
- Find the letter from your Medicare plan. Plans must send written notice if they are not renewing, so look in your mail and in the member portal.
- Write down your doctors, your prescriptions with their doses, and your pharmacy. These decide which plan works for you.
- Mark your dates. The Annual Enrollment Period generally runs October 15 to December 7, with new coverage starting January 1. People whose plan is not renewing generally get a Special Enrollment Period that runs from December 8 through the end of February. Confirm your own dates with your plan or with us.
- Call 855-367-1095 and tell us your city and plan name. A licensed agent will go over what is available where you live and what fits. It costs you nothing to ask, and we will say plainly what we can and cannot help with.
Companies with plans CMS's 2027 list does not show in Orange County
Pick your company to see its plans and what to do.
The largest plans on CMS's list for Orange County
Plan names and IDs are as CMS lists them. Check yours against your member card.
Aetna Medicare Signature (PPO)
Plan ID: H5521-419
Plan type: PPO
Part D drug coverage in the plan, per CMS's Landscape: yesCMS's 2027 plan list does not show this plan in Orange County, California, where CMS's 2026 list showed it.
5,141 people reported enrolled in Orange County by CMS (September 2026)
CMS's 2027 plan list still shows other Aetna (CVS Health) plans in Orange County.
Kaiser Permanente Dual Complete South P1 (HMO D-SNP)
Plan ID: H8794-001
Plan type: HMO D-SNP (CMS special needs plan type: Dual-Eligible)
Part D drug coverage in the plan, per CMS's Landscape: yesCMS's 2027 plan list does not show this plan in Orange County, California, where CMS's 2026 list showed it.
4,301 people reported enrolled in Orange County by CMS (September 2026)
CMS's 2027 plan list still shows other Kaiser Permanente plans in Orange County.
Providence Medicare Sycamore + Rx (HMO)
Plan ID: H9047-066
Plan type: HMO
Part D drug coverage in the plan, per CMS's Landscape: yesCMS's 2027 plan list does not show this plan in Orange County, California, where CMS's 2026 list showed it.
3,976 people reported enrolled in Orange County by CMS (September 2026)
For this plan, CMS's lists show at least one county where Providence St Joseph Health has no plan at all for 2027. Whether that includes Orange County is something to confirm with the plan, or with us.
Aetna Medicare Enhanced (PPO)
Plan ID: H5521-578
Plan type: PPO
Part D drug coverage in the plan, per CMS's Landscape: yesCMS's 2027 plan list does not show this plan in Orange County, California, where CMS's 2026 list showed it.
2,558 people reported enrolled in Orange County by CMS (September 2026)
CMS's 2027 plan list still shows other Aetna (CVS Health) plans in Orange County.
SCAN Affirm partnered with Included LGBTQ+ Health (HMO)
Plan ID: H5425-092
Plan type: HMO
Part D drug coverage in the plan, per CMS's Landscape: yesCMS's 2027 plan list does not show this plan in Orange County, California, where CMS's 2026 list showed it.
1,214 people reported enrolled in Orange County by CMS (September 2026)
CMS's 2027 plan list still shows other SCAN Group plans in Orange County.
Alignment Health Advantage PPO (PPO)
Plan ID: H8832-001
Plan type: PPO
Part D drug coverage in the plan, per CMS's Landscape: yesCMS's 2027 plan list does not show this plan in Orange County, California, where CMS's 2026 list showed it.
1,195 people reported enrolled in Orange County by CMS (September 2026)
CMS's 2027 plan list still shows other Alignment Healthcare USA plans in Orange County.
Where this comes from, and its limits
This page was built from public CMS files: CMS CY2026 Landscape (Sept 2025 release), CMS CY2027 Landscape (Sept 2026 release), and CMS Monthly Enrollment by Contract/Plan/State/County, Sept 2026. A plan is listed when CMS's 2026 Landscape lists a plan in a county and CMS's 2027 Landscape does not list any segment of that plan there. Member counts are the people CMS reports enrolled in the plan in those counties in September 2026. CMS hides enrollment counts of 10 or fewer, so "at least" means the real number can be higher.
This is what CMS's files show. It is not a notice about any one person's coverage, and CMS can correct or update its files after we built this page. Your plan's written notice is what tells you what is happening to your coverage, so check it and confirm with the plan.
GetFastRates.com is not Medicare, not the Centers for Medicare & Medicaid Services (CMS) and not a health plan, and we are not connected with or endorsed by any of them.
GetFastRates.com is not connected with or endorsed by the U.S. government or the federal Medicare program. Calling connects you with licensed insurance help. Plan availability, costs, benefits, and enrollment rules can vary by state, carrier, and individual situation.
We do not offer every plan available in your area. We represent a limited number of organizations, which offer a limited number of products in your area. Please contact Medicare.gov, 1-800-MEDICARE (1-800-633-4227), or your local State Health Insurance Assistance Program (SHIP) to get information on all of your options.
Want to talk through your options?
Leave your number and a licensed agent will call to talk through where you are and what fits. There is no obligation. Please don't put your Medicare or Social Security number in the form.
Related pages
Other cities in Orange County
Other California cities
Common questions
Is my Medicare plan ending in Costa Mesa?
This page cannot tell you that about your plan. It shows only that CMS's 2027 plan list does not show 21 plans from 9 companies in Orange County that CMS's 2026 list showed there. Plans are sometimes renumbered or replaced, and a company often moves members to another of its plans. The written notice from your plan is what tells you what is happening to your coverage. If you cannot find it, call your plan using the number on your member card, or call us at 855-367-1095.
If a plan is on this list, will it not be there next year?
Not necessarily, and this page cannot tell you that about your plan. It shows only that CMS's 2027 plan list does not show a plan in Orange County. Plans are sometimes renumbered or replaced, and a company often moves members to another of its plans. The written notice from your plan is what tells you what is happening to your coverage, so check it and confirm with the plan.
When can I choose a different plan?
The Annual Enrollment Period generally runs October 15 to December 7, with new coverage starting January 1. People whose plan is not renewing generally get a Special Enrollment Period that runs from December 8 through the end of February. Check your own dates with your plan or with us.
Who can help me compare my options?
Talk with us: leave your number below or call 855-367-1095. We do not offer every plan, so we will say plainly what we can and cannot help with.
Where do these numbers come from?
CMS CY2026 Landscape (Sept 2025 release), CMS CY2027 Landscape (Sept 2026 release), and CMS Monthly Enrollment by Contract/Plan/State/County, Sept 2026. CMS hides enrollment counts of 10 or fewer, so "at least" means the real number can be higher.
Questions about your 2027 plan are easier by phone.
Call 855-367-1095 to talk with a licensed agent, who will be honest about what we can and cannot offer.
- Licensed insurance help
- No guaranteed eligibility, pricing, or availability
- Educational starting point
GetFastRates.com is not connected with or endorsed by the U.S. government or the federal Medicare program. Calling connects you with licensed insurance help. Plan availability, costs, benefits, and enrollment rules can vary by state, carrier, and individual situation.