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Blue Cross (Health Care Service Corp) Medicare plans ending in Oklahoma for 2027

Which Blue Cross (Health Care Service Corp) plans are listed as leaving Oklahoma, where, and what to do next.

Quick answer

8 Blue Cross (Health Care Service Corp) plans are listed in Oklahoma for 2026 but not for 2027, in 58 counties, covering at least 4,557 people enrolled today. If you have one of these plans, you can choose a new plan from October 15 to December 7, and coverage starts January 1.

Blue Cross (Health Care Service Corp) plans leaving Oklahoma

Plan going awayWherePeople enrolled (at least)
Blue Cross Medicare Advantage Basic (HMO)
H3979-001		28 counties3,129
Blue Cross Medicare Advantage Classic (PPO)
H8634-027		44 counties863
Blue Cross Medicare Advantage Dental Premier (PPO)
H8634-029		44 counties226
Blue Cross Medicare Advantage Health Choice (PPO)
H8634-030		44 counties136
Blue Cross Medicare Advantage Optimum (PPO)
H8634-032		58 counties118
Blue Cross Medicare Advantage Balance (PPO)
H8634-031		58 counties85
Blue Cross Medicare Advantage Dual Care Plus (HMO D-SNP)
H8554-003		34 countiesnot listed
Blue Cross Medicare Advantage Protect (PPO)
H8634-028		44 countiesnot listed

Counties with Blue Cross (Health Care Service Corp) plans leaving

What to do if you have a Blue Cross (Health Care Service Corp) plan

  1. Read the notice from Blue Cross (Health Care Service Corp). It names the plan that is ending and your options.
  2. Compare 2027 options before December 7, including other Medicare Advantage plans, or Original Medicare with a Medicare Supplement and a Part D drug plan.
  3. Check that your doctors, hospitals and prescriptions are covered by any plan you consider.
  4. Free, unbiased help: Oklahoma SHIP (State Health Insurance Counseling Program) at 1-800-763-2828, or Medicare.gov, 1-800-MEDICARE.
Is my Blue Cross (Health Care Service Corp) plan ending in Oklahoma?

Check the list above for your plan name or plan ID. A plan can be listed because it was renumbered or replaced, so your plan notice is the final word. Blue Cross (Health Care Service Corp) must notify you if your plan is not renewing.

When can I pick a new plan?

The Annual Enrollment Period runs October 15 to December 7, and new coverage starts January 1. People whose plan is not renewing generally get extra time afterward. Confirm your dates with Medicare.gov or your plan notice.

Do I have to enroll if I call?

No. Calling is a conversation about your options, and you are never required to enroll.

Blue Cross (Health Care Service Corp) plan ending? Call 855-367-1095

Call Lander LLC to go over your options. There is no cost to call or to speak with an agent, and you are never required to enroll in anything.

Call 855-367-1095 Open 8 AM-10 PM Eastern time

Source: CMS Medicare Advantage and Part D landscape files for 2026 and 2027, and CMS enrollment data from September 2026.

Reviewed by Richard Lander, licensed insurance agent (NPN 21255551), Lander LLC. Last updated October 3, 2026. This page is educational and is not a quote, an offer of coverage, or legal or tax advice.

Do it yourself

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Compare plans and enroll on your own time. Or call 855-367-1095 when you want a licensed agent’s help (Open 8 AM-10 PM Eastern time).

Medicare

Medicare Open Enrollment starts October 15th

Take a look at Oklahoma plans, or go ahead and enroll yourself. Call if you need any help with your application.

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Under 65 · ACA

ACA Open Enrollment opens November 1st

Open enrollment starts November 1st. Not sure which Oklahoma plan is right for you? Call and we'll help you find it.

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Questions along the way? Call 855-367-1095 for assistance (Open 8 AM-10 PM Eastern time).