Medicare Advantage
Jan 1 to March 31: Midwest City Medicare Advantage Changes
People in Midwest City can choose from 59 Medicare Advantage plans for 2027, against 60 this year. Nine of this year’s plans are gone, 8 are new to Oklahoma County, and 24 that continue have changed their premium, deductible, plan type or name, 7 of them under a new name.
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MIDWEST CITY, Okla. — If you signed up for a Medicare Advantage plan last fall and something already feels off — a doctor left the network, a drug isn't covered the way you expected, or the plan just doesn't fit — you get one more chance to change course. The Medicare Advantage Open Enrollment Period runs January 1 through March 31, and it gives people already in an Advantage plan a limited do-over before the coverage year settles in.
Key takeaways
- The Medicare Advantage Open Enrollment Period runs Jan. 1 through March 31 and is only for people already enrolled in a Medicare Advantage plan on Jan. 1.
- You can make one switch during this window: change to a different Advantage plan, or drop Advantage and go back to Original Medicare (with the option to add a stand-alone Part D plan).
- People who stayed with Original Medicare after fall enrollment cannot use this window to join an Advantage plan for the first time.
- In 2026, Part D has a $2,100 out-of-pocket cap and a maximum deductible of $615; in 2027, the cap is $2,400 and the maximum deductible is $700 — good context if drug costs are why you're rethinking your plan.
What this window is — and who it's for
The Medicare Advantage Open Enrollment Period (often shortened to MA-OEP) is different from the fall Annual Enrollment Period. Fall AEP, which ended December 7, was open to almost everyone. This January-to-March window is narrower. It's for people who are already in a Medicare Advantage plan as of January 1.
If that's you, you can use it once. If you're on Original Medicare and wish you had picked an Advantage plan back in the fall, this window generally isn't for you — you'd need to wait for the next AEP or qualify for a Special Enrollment Period.
What you can change between Jan. 1 and March 31
During the MA-OEP, you have two basic choices:
1. Switch to a different Medicare Advantage plan. That could be a plan with different provider networks, different drug coverage, or a different plan type. 2. Drop your Medicare Advantage plan and return to Original Medicare (Parts A and B). If you do this, you can also join a stand-alone Part D prescription drug plan.
You get to make one such change. Whatever you pick takes effect the first day of the following month.
What you can't do in this window
A few common misunderstandings trip people up:
- You can't use MA-OEP to join a Medicare Advantage plan if you were on Original Medicare on January 1.
- You can't use it to join, drop, or switch a stand-alone Part D plan on its own — unless you're also leaving Advantage for Original Medicare.
- You can't make more than one change. Once your switch processes, this window is done for you.
How to decide if you should switch
Before making a move, take a calm look at how the new plan year is actually going. Some questions worth asking:
- Are your regular doctors, specialists, and preferred hospitals in the plan's network this year?
- Are your prescriptions on the plan's drug list, and at a tier you can afford?
- Do you need referrals or prior authorization for care you use often?
- If you travel or spend time out of state, does the plan work where you go?
For 2026, Part D drug coverage has a $2,100 annual out-of-pocket cap and a maximum deductible of $615. In 2027, the cap rises to $2,400 and the maximum deductible to $700. The old "donut hole" coverage gap is gone — Part D now has three phases. If drug costs are stressful, ask about the Medicare Prescription Payment Plan, an optional program that lets you spread your out-of-pocket drug costs across the year in monthly amounts instead of paying big bills at the pharmacy.
What Midwest City residents should know locally
Midwest City is in Oklahoma County, and Medicare Advantage and Part D plan availability is set at the county level, not the city level. That means every neighbor here has the same menu of plans to choose from, but the plan that's right for one household may be wrong for the next. Networks, drug lists, and extra benefits vary a lot from plan to plan.
For unbiased, one-on-one help sorting through your options in Oklahoma County, Oklahoma's State Health Insurance Assistance Program (SHIP) offers free counseling to Medicare beneficiaries. It's run through the Oklahoma Insurance Department and is not tied to any insurance company.
Don't wait until late March
The window closes March 31. If you're weighing a change, give yourself time to compare plans, confirm your doctors and drugs, and — if you're returning to Original Medicare — line up a Part D plan and think through whether a Medigap policy makes sense for you. (Medigap has its own enrollment rules, and depending on your situation, you may face medical underwriting.)
By the numbers
Medicare Part B premium, 2006–2026
The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.
Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.
By the numbers
How people get Medicare in Oklahoma County
(MA penetration in Oklahoma County)
MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.
Key dates
Medicare enrollment periods at a glance
- Around your 65thInitial Enrollment PeriodA 7-month window around the month you turn 65 — your first chance to sign up.
- October 15 – December 7Annual Enrollment PeriodAnyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan.
- January 1 – March 31Medicare Advantage Open EnrollmentIf you're already in a Medicare Advantage plan, you can make one change.
- January 1 – March 31General Enrollment PeriodFor people who missed their first chance to sign up for Part B.
- VariesSpecial Enrollment PeriodTriggered by life events like moving or losing other coverage.
Dates are set by Medicare and apply nationwide. Confirm your personal windows at Medicare.gov or 1-800-MEDICARE.
Explore
When can you enroll? An interactive year
Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.
Explore
The parts of Medicare
Good to know
Frequently asked questions
Can I join a Medicare Advantage plan for the first time between January and March?
If I drop my Advantage plan, how do I get drug coverage?
When does my new coverage start?
Where can I get help that isn't a sales pitch?
- CMS — Medicare enrollment periods (medicare.gov)
For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.
Also for Midwest City
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This page was last updated: October 1, 2026.