Oklahoma Medicare

Medicare Advantage Plans in Oklahoma for 2027: What's Ending and What's Available

28 Oklahoma Medicare plans end or leave counties for 2027, per CMS; 25,981 people must choose a new plan. Another 4 were merged or renumbered, so those members move automatically. If yours is on the list, a licensed agent can help at no cost to you.

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You can enroll in a 2027 Medicare plan from October 15 through December 7.

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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 or 1-800-MEDICARE to get information on all of your options. Not connected with or endorsed by the United States government or the federal Medicare program. Calls are recorded, as Medicare requires.

Which Oklahoma Medicare plans are ending in 2027?

Checked October 6, 2026 against CMS's 2026 and 2027 plan lists and September 2026 enrollment.

The biggest plans ending: AARP (11,435 members), Cigna HealthSpring (7,536 members), Blue Cross (4,557 members). CMS's 2027 Plan Crosswalk says 28 Oklahoma Medicare Advantage and Part D plans end or leave counties for 2027, with at least 25,981 people enrolled who must choose a new plan. Another 4 plans (27,869 people) were merged into other plans or given new plan numbers; CMS moves those members automatically, and their letter names the new plan. A plan that ends stops on December 31, 2026. It does not mean you lose Medicare. Your plan's own letter is the final word.

AARP (UnitedHealthcare): 12 plans end or leave counties (11,435 members); 1 merged or renumbered (26,141 members) county detail
Cigna HealthSpring: 1 plan ends or leaves counties (7,536 members); 1 merged or renumbered (1,264 members) county detail
Blue Cross: 8 plans end or leave counties (4,557 members) county detail
Wellcare / Ambetter: 3 plans end or leave counties (2,058 members) county detail
Humana: 4 plans end or leave counties (395 members); 1 merged or renumbered (24 members) county detail
Aetna: no plans ending; 1 merged or renumbered (440 members) county detail

32 Oklahoma plans on CMS's 2026 list but not its 2027 list: plans that end come first, then plans CMS merged or renumbered
Plan	Plan ID	Counties	Members	What CMS says for 2027
HealthSpring Extra Rx (PDP) Cigna HealthSpring	S5617-373	Statewide (Part D drug plan)	7,536+	Ends December 31, 2026. Members must choose a new plan.
Blue Cross Medicare Advantage Basic (HMO) Blue Cross	H3979-001	Blaine, Bryan, Canadian, Carter and 24 more	3,129+	Leaves these counties for 2027. Members here must choose a new plan.
AARP Medicare Advantage from UHC OK-0002 (HMO-POS) AARP (UnitedHealthcare)	H5253-172	Atoka, Bryan, Creek, Delaware and 8 more	2,683	Leaves these counties for 2027. Members here must choose a new plan.
AARP Medicare Advantage from UHC OK-0006 (PPO) AARP (UnitedHealthcare)	H8768-009	Bryan, Choctaw, Creek, Johnston and 5 more	2,448	Leaves these counties for 2027. Members here must choose a new plan.
Wellcare Simple Open (PPO) Wellcare / Ambetter	H4537-001	Adair, Caddo, Canadian, Cherokee and 26 more	1,678	Ends December 31, 2026. Members must choose a new plan.
AARP Medicare Advantage from UHC OK-0001 (HMO-POS) AARP (UnitedHealthcare)	H5253-171	Alfalfa, Beaver, Caddo, Cimarron and 16 more	1,224+	Leaves these counties for 2027. Members here must choose a new plan.
AARP Medicare Advantage from UHC OK-0004 (HMO-POS) AARP (UnitedHealthcare)	H5253-174	Bryan, Creek, Johnston, Marshall and 4 more	1,055	Leaves these counties for 2027. Members here must choose a new plan.
AARP Medicare Advantage from UHC OK-0005 (PPO) AARP (UnitedHealthcare)	H8768-008	Alfalfa, Beaver, Caddo, Carter and 16 more	986+	Leaves these counties for 2027. Members here must choose a new plan.
AARP Medicare Advantage from UHC OK-0007 (PPO) AARP (UnitedHealthcare)	H8768-016	Alfalfa, Beaver, Caddo, Carter and 16 more	908+	Leaves these counties for 2027. Members here must choose a new plan.
AARP Medicare Advantage Essentials from UHC OK-3 (HMO-POS) AARP (UnitedHealthcare)	H5253-173	Alfalfa, Beaver, Caddo, Cimarron and 16 more	867+	Leaves these counties for 2027. Members here must choose a new plan.
Found your plan on this list?A licensed agent reads your letter with you and goes over your options. No cost, 8 AM to midnight ET. Call 855-367-1095
Blue Cross Medicare Advantage Classic (PPO) Blue Cross	H8634-027	Adair, Alfalfa, Atoka, Caddo and 40 more	863+	Ends December 31, 2026. Members must choose a new plan.
AARP Medicare Advantage Patriot No Rx OK-MA01 (PPO) AARP (UnitedHealthcare)	H8768-028	Alfalfa, Beaver, Bryan, Caddo and 23 more	564+	Leaves these counties for 2027. Members here must choose a new plan.
AARP Medicare Advantage Patriot No Rx OK-MA2 (HMO-POS) AARP (UnitedHealthcare)	H5253-205	Alfalfa, Beaver, Bryan, Caddo and 18 more	261+	Leaves these counties for 2027. Members here must choose a new plan.
UHC Complete Care OK-9 (HMO-POS C-SNP) AARP (UnitedHealthcare)	H5253-176	Creek	227	Leaves these counties for 2027. Members here must choose a new plan.
Blue Cross Medicare Advantage Dental Premier (PPO) Blue Cross	H8634-029	Adair, Alfalfa, Atoka, Caddo and 40 more	226+	Ends December 31, 2026. Members must choose a new plan.
Wellcare Patriot Giveback Open (PPO) Wellcare / Ambetter	H4537-005	Adair, Caddo, Canadian, Cherokee and 26 more	223+	Ends December 31, 2026. Members must choose a new plan.
Wellcare Dual Access Open (PPO D-SNP) Wellcare / Ambetter	H4537-004	Adair, Caddo, Canadian, Cherokee and 26 more	157+	Ends December 31, 2026. Members must choose a new plan.
UHC Complete Care OK-8 (HMO-POS C-SNP) AARP (UnitedHealthcare)	H5253-175	Caddo, Lincoln	151	Leaves these counties for 2027. Members here must choose a new plan.
HumanaChoice H5216-337 (PPO) Humana	H5216-337	Blaine, Pawnee	142	Leaves these counties for 2027. Members here must choose a new plan.
HumanaChoice H5216-316 (PPO) Humana	H5216-316	Blaine, Stephens	139	Leaves these counties for 2027. Members here must choose a new plan.
Found your plan on this list?A licensed agent reads your letter with you and goes over your options. No cost, 8 AM to midnight ET. Call 855-367-1095
Blue Cross Medicare Advantage Health Choice (PPO) Blue Cross	H8634-030	Adair, Alfalfa, Atoka, Caddo and 40 more	136+	Ends December 31, 2026. Members must choose a new plan.
Blue Cross Medicare Advantage Optimum (PPO) Blue Cross	H8634-032	Adair, Alfalfa, Atoka, Blaine and 54 more	118+	Ends December 31, 2026. Members must choose a new plan.
Humana Gold Plus H6622-033 (HMO) Humana	H6622-033	Osage	97	Leaves these counties for 2027. Members here must choose a new plan.
Blue Cross Medicare Advantage Balance (PPO) Blue Cross	H8634-031	Adair, Alfalfa, Atoka, Blaine and 54 more	85+	Ends December 31, 2026. Members must choose a new plan.
AARP Medicare Advantage Extras from UHC OK-8 (HMO-POS) AARP (UnitedHealthcare)	H5253-204	Alfalfa, Beaver, Caddo, Cimarron and 16 more	61+	Leaves these counties for 2027. Members here must choose a new plan.
Humana USAA Honor Giveback (PPO) Humana	H5216-278	Blaine	17	Leaves these counties for 2027. Members here must choose a new plan.
Blue Cross Medicare Advantage Dual Care Plus (HMO D-SNP) Blue Cross	H8554-003	Blaine, Bryan, Canadian, Carter and 30 more	10 or fewer	Ends December 31, 2026. Members must choose a new plan.
Blue Cross Medicare Advantage Protect (PPO) Blue Cross	H8634-028	Adair, Alfalfa, Atoka, Caddo and 40 more	10 or fewer	Ends December 31, 2026. Members must choose a new plan.
UHC Dual Complete OK-S002 (HMO-POS D-SNP) AARP (UnitedHealthcare)	H5322-031	Adair, Alfalfa, Atoka, Beaver and 68 more	26,141+	Continues for 2027 as UHC Dual Complete OK-S002 (HMO-POS D-SNP) (H5322-052). Members keep their plan.
HealthSpring Assurance Rx (PDP) Cigna HealthSpring	S5617-113	Statewide (Part D drug plan)	1,264+	Merged into HealthSpring Assurance Rx (PDP) (S5715-015) for 2027. Members are moved automatically and can still switch.
Found your plan on this list?A licensed agent reads your letter with you and goes over your options. No cost, 8 AM to midnight ET. Call 855-367-1095
Aetna Medicare Signature (PPO) Aetna	H3288-021	Creek, Okmulgee, Tulsa, Wagoner	440	Merged into Aetna Medicare Signature (PPO) (H3288-020) for 2027. Members are moved automatically and can still switch.
HumanaChoice SNP-DE H5216-469 (PPO D-SNP) Humana	H5216-469	Adair, Blaine, Bryan, Canadian and 46 more	24+	Merged into HumanaChoice SNP-DE H5216-331 (PPO D-SNP) (H5216-331) for 2027. Members are moved automatically and can still switch.

Full detail by company and county: Oklahoma Medicare plan changes for 2027. CMS hides county counts of 10 or fewer, so totals are at least the number shown.

Medicare Advantage plans available in Oklahoma for 2027

Checked 2026-10-17 against CMS's 2027 plan benefit and county files.

81 Medicare Advantage plans are offered in Oklahoma for 2027 by 9 companies. 38 are HMO plans and 41 are PPO plans, with 2 private fee-for-service. 29 are special needs plans, which only people who qualify (for example, people who also have Medicaid or a chronic condition) can join, so 52 are open to most people with Medicare. Depending on the county, you can choose from between 3 and 59 plans.

Compared with 2026: 84 plans were offered in Oklahoma in 2026, so the count is down by 3 for 2027. New to Oklahoma for 2027: Native Advantage (1 plan). Listed in CMS's 2026 files but not its 2027 files: Blue Cross and Blue Shield of IL, NM, OK, TX (6 plans in 2026), Wellcare (3 plans in 2026), Cigna HealthCare (2 plans in 2026), Blue Cross and Blue Shield of OK, TX (1 plan in 2026), Blue Cross and Blue Shield of Oklahoma (1 plan in 2026). A company can also appear to leave because it changed its name, so check your own plan's letter.

Plans by company, 2026 and 2027

Company	Plans in 2026	Plans in 2027	Change
Humana	24	23	−1
UnitedHealthcare	16	20	+4
Devoted Health	8	12	+4
Aetna Medicare	7	8	+1
GlobalHealth	7	7	no change
CommunityCare Senior Health Plan (HMO)	6	6	no change
HealthSpring	2	3	+1
American Health Advantage of Oklahoma	1	1	no change
Native Advantage	0	1	new
Blue Cross and Blue Shield of IL, NM, OK, TX	6	0	not listed
Wellcare	3	0	not listed
Cigna HealthCare	2	0	not listed
Blue Cross and Blue Shield of OK, TX	1	0	not listed
Blue Cross and Blue Shield of Oklahoma	1	0	not listed

Plans offered by county, 2026 and 2027

County	Plans in 2026	Plans in 2027	Change
Adair	43	36	−7
Alfalfa	20	14	−6
Atoka	21	15	−6
Beaver	10	3	−7
Beckham	10	10	no change
Blaine	25	24	−1
Bryan	29	19	−10
Caddo	40	23	−17
Canadian	64	57	−7
Carter	35	26	−9
Cherokee	39	29	−10
Choctaw	20	17	−3
Cimarron	10	3	−7
Cleveland	58	55	−3
Coal	23	16	−7
Comanche	34	29	−5
Cotton	23	17	−6
Craig	42	37	−5
Creek	58	46	−12
Custer	20	12	−8
Delaware	33	29	−4
Dewey	27	13	−14
Ellis	6	3	−3
Garfield	37	27	−10
Garvin	50	46	−4
Grady	50	40	−10
Grant	22	16	−6
Greer	21	15	−6
Harmon	16	3	−13
Harper	4	3	−1
Haskell	26	26	no change
Hughes	45	36	−9
Jackson	26	12	−14
Jefferson	19	19	no change
Johnston	30	17	−13
Kay	34	21	−13
Kingfisher	39	43	+4
Kiowa	27	20	−7
Latimer	20	20	no change
Le Flore	32	29	−3
Lincoln	58	48	−10
Logan	63	56	−7
Love	26	11	−15
Major	22	16	−6
Marshall	24	11	−13
Mayes	52	42	−10
McClain	56	53	−3
McCurtain	16	11	−5
McIntosh	48	45	−3
Murray	34	27	−7
Muskogee	46	41	−5
Noble	30	18	−12
Nowata	40	28	−12
Okfuskee	52	40	−12
Oklahoma	60	59	−1
Okmulgee	58	55	−3
Osage	51	40	−11
Ottawa	38	37	−1
Pawnee	50	42	−8
Payne	9	17	+8
Pittsburg	46	35	−11
Pontotoc	40	25	−15
Pottawatomie	53	50	−3
Pushmataha	31	25	−6
Roger Mills	10	3	−7
Rogers	48	40	−8
Seminole	49	50	+1
Sequoyah	33	30	−3
Stephens	33	30	−3
Texas	9	3	−6
Tillman	16	14	−2
Tulsa	62	55	−7
Wagoner	53	46	−7
Washington	18	24	+6
Washita	11	11	no change
Woods	14	7	−7
Woodward	10	10	no change

Counts include special needs plans. A plan can be offered in only part of a state, so the plans you can choose depend on your county. Which plans keep your doctors and cover your medicines is not in the CMS files; a licensed agent checks that for you.

Ready to enroll in a Oklahoma plan?

Call 855-367-1095 to enroll

No cost. No obligation. Not the government. Speak with a licensed insurance agent (TTY 711).

Will a 2027 plan keep your doctors and cover your prescriptions?

The public plan sites can't tell you that without a lot of clicking, and some 2027 plans aren't on them until October 15. Give us your doctors and your prescriptions and a licensed agent checks every 2027 plan in your county against your list, then calls you with the two or three that fit. No cost, no obligation.

Got a letter saying your Medicare plan is leaving or won't renew?

A non-renewal letter means your specific plan won't continue in your county after December 31, 2026. It doesn't mean you lose Medicare, and it usually doesn't mean your insurance company is leaving Medicare altogether. You can choose a new Medicare Advantage plan, or move to Original Medicare with a Medigap plan and a Part D drug plan.

Medicare Advantage in Oklahoma today

At least 315,509 Oklahoma residents are in an individual Medicare Advantage plan (80 plans from 10 companies across 77 counties in 2026).
Largest carriers by members: UnitedHealthcare (128,996), Humana (112,734), CommunityCare Senior Health Plan (HMO) (35,868), GlobalHealth (17,698), Aetna (9,041), Blue Cross and Blue Shield of Oklahoma (4,557).
Last year, 27 Oklahoma Medicare Advantage plans ended or dropped counties for 2026, affecting about 4,687 members, most from Blue Cross and Blue Shield of Oklahoma, Wellcare, Cigna Healthcare.

My Medicare Advantage plan is ending. What are my deadlines?

Your current plan keeps working through December 31, 2026. Doctors, prescriptions and benefits work as usual until then.
Open Enrollment, October 15, 2026 to December 7, 2026: pick a new plan now and it starts January 1, 2027, with no gap.
Your extra window, December 8, 2026 to February 28, 2027: because your plan is being discontinued, you get a Special Enrollment Period on top of Open Enrollment. An enrollment request received December 8-31 is effective January 1; received in January, effective February 1; received in February, effective March 1.
Medigap guaranteed issue: apply as early as November 1, 2026, and no later than March 4, 2027 (63 days after your coverage ends).

What happens if I do nothing when my plan is cancelled?

You don't lose Medicare. If you don't choose a new plan, you're moved to Original Medicare (Parts A and B) on January 1, 2027. Original Medicare doesn't include prescription drug coverage, so you'd need to join a separate Part D plan. Going 63 days or more without creditable drug coverage can mean a permanent late-enrollment penalty.

Can I switch to a Medicare Supplement (Medigap) plan without health questions?

Usually yes. When a Medicare Advantage plan leaves your area or stops offering coverage, federal law gives you a guaranteed issue right: a Medigap company must sell you Plan A, B, D or G (or C or F if you were eligible for Medicare before January 1, 2020), can't charge more for past or present health problems, and can't refuse you, as long as you switch to Original Medicare. Some states add more rights than this. Keep your non-renewal letter; it can serve as proof.

How Medigap guaranteed issue works when your plan ends

Losing your Advantage plan this year? Moving to Medigap | Medigap or another Advantage plan? | Moving to Medigap, step by step

What to check before choosing a replacement plan

Are your doctors, specialists and hospitals in the new plan's network?
Are your prescriptions on its drug list, and is your pharmacy covered?
Premium, deductible, copays and maximum out-of-pocket
HMO or PPO, and any extra benefits (dental, vision, hearing) that matter to you
Medicare Advantage vs. Original Medicare with Medigap and a Part D plan

Free Medicare tools

Questions about Oklahoma Medicare plans ending

Which Medicare Advantage plans are ending in Oklahoma for 2027?

The list on this page comes straight from CMS's 2027 plan files: every plan that won't renew, or won't be offered in a county, in Oklahoma. It covers several carriers.

Is my Medicare Advantage plan being cancelled in Oklahoma?

If your plan won't continue, you'll get a non-renewal letter by October 2, 2026. Your Annual Notice of Change (ANOC) lists what's changing if your plan does continue. Your plan stays in force through December 31, 2026 either way.

How many people in Oklahoma lost their Medicare Advantage plan last year?

For 2026, CMS's files show 27 Medicare Advantage plans ended or dropped counties in Oklahoma, affecting about 4,687 members across 41 counties.

What happens if I don't pick a new plan after my Medicare Advantage plan ends?

You don't lose Medicare. If you don't choose anything, you're moved to Original Medicare (Parts A and B) on January 1, 2027. Original Medicare doesn't include drug coverage, so you'd need to join a separate Part D plan, and going 63 days or more without creditable drug coverage can mean a late-enrollment penalty.

How long do I have to switch after my Medicare Advantage plan is discontinued?

You can switch during Open Enrollment, October 15, 2026 to December 7, 2026, for coverage starting January 1. Because your plan is ending, you also get a Special Enrollment Period from December 8, 2026 through February 28, 2027. An enrollment request received December 8-31 is effective January 1; received in January, effective February 1; received in February, effective March 1. Choosing by December 7, 2026 avoids any gap.

Can I get a Medicare Supplement (Medigap) plan without health questions if my plan is ending?

Usually yes. When a Medicare Advantage plan leaves your area or stops offering coverage, you have a guaranteed issue right to buy Medigap Plan A, B, D or G (and C or F if you were eligible for Medicare before January 1, 2020) without medical underwriting, as long as you move to Original Medicare. You can apply as early as 60 days before your coverage ends and no later than 63 days after (March 4, 2027). Some states give more rights than this.

Why did I get a letter saying my Medicare plan won't renew?

Plans that won't continue next year must mail members a non-renewal notice by October 2, 2026. It means your current plan ends December 31, 2026, not that you lose Medicare. Keep the letter: it shows which plan is ending and helps prove your enrollment rights.

Will my doctors still be covered on a new plan in Oklahoma?

It depends on the plan you choose. Before switching, check that your doctors, specialists and hospitals are in the new plan's network, your prescriptions are on its drug list, and your pharmacy is covered. With Original Medicare plus Medigap, you can see any provider that accepts Medicare.

Which Medicare Advantage plans are available in Oklahoma for 2027?

CMS's 2027 files list 81 Medicare Advantage plans offered in Oklahoma by 9 companies: Humana (23 plans), UnitedHealthcare (20 plans), Devoted Health (12 plans), Aetna Medicare (8 plans), GlobalHealth (7 plans), and others. 29 of them are special needs plans, which only people who qualify can join. Which plans you can actually choose depends on your county.

I just found out my plan is ending. Do I need to decide right away?

No. Your plan works through December 31, 2026. You can choose a new plan from October 15 to December 7, and because your plan is ending you also get a Special Enrollment Period from December 8 through February 28, 2027. Deciding earlier just means your new plan is settled before January 1.

Will I get pressured into a sales call if I ask for help?

No. A licensed agent looks at the plans available where you live in Oklahoma, explains what changes for you, and you decide. There is no cost to you and no obligation to enroll in anything. Calls are recorded, as Medicare requires.

How do I know my plan is on this list?

Type your plan name or the plan ID from your member card into the box above the table. The list comes from CMS's own 2026 and 2027 plan files. Your plan's written notice is the final word; if the two disagree, trust the letter and have a licensed agent check it with you.

Is your Oklahoma Medicare plan ending?

Call to check your plan and compare what's available where you live, with licensed Medicare help.

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Sources

Last updated 2026-10-06. Plan counts come from CMS files; CMS doesn't publish county counts of 10 or fewer members, so totals are at least the number shown.