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Medicare Advantage

Medicare Advantage in Frederick: Jan 1–March 31 switch window

FREDERICK, Md. — If you signed up for a Medicare Advantage plan last fall and now find yourself second-guessing the fit, you still have time to make a change. The Medicare Advantage Open Enrollment Period runs January 1 through March 31, giving Frederick residents a chance to switch course before the choice sticks for the rest of the year.

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This affects which Medicare Advantage options you can choose.

Medicare Advantage options in your area

These listings are provided by licensed insurance partners.

2027 PLAN ALERT

Medicare Advantage plans in your area are changing or leaving for 2027.

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Annual Enrollment: Oct 15 – Dec 7

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BEFORE YOU ENROLL

Found a plan you like online?

One free call confirms it's actually right for you — online directories are wrong more often than you'd think.

  • Your doctors — confirmed in-network for 2027
  • Your prescriptions — checked against the plan's 2027 drug tiers
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Key takeaways

  • The Medicare Advantage Open Enrollment Period runs January 1 through March 31 each year.
  • You must already be enrolled in a Medicare Advantage plan on January 1 to use it.
  • You can switch to a different Medicare Advantage plan or return to Original Medicare (and add a Part D plan).
  • You only get one change during this window, so review your drug list and doctors before you act.

This window is different from the fall Annual Enrollment Period. It is narrower in what it lets you do — but for people already in a Medicare Advantage plan, it can be a helpful second look.

What this enrollment period is — and isn't

The Medicare Advantage Open Enrollment Period (sometimes shortened to MA OEP) is a once-a-year chance for people already in a Medicare Advantage plan to make one change. It is not a general enrollment window. If you are still on Original Medicare on January 1, you cannot use it to jump into a Medicare Advantage plan.

Think of it as a "correction" period. Maybe your new plan's pharmacy network doesn't include the drugstore you actually use. Maybe a specialist you rely on isn't in-network. This window gives you a way to fix that without waiting until next fall.

What you can change

During January 1 – March 31, if you are enrolled in a Medicare Advantage plan, you can:

Any change you make takes effect the first day of the following month.

What you cannot do in this window

There are real limits, and this is where people trip up:

Also worth knowing: leaving Medicare Advantage to return to Original Medicare does not automatically guarantee you a Medigap (Medicare Supplement) policy without medical underwriting. In Maryland, guaranteed-issue protections are limited, so check before you drop coverage you rely on.

Frederick-area context

Frederick is in Frederick County, where a range of Medicare Advantage plans are offered by multiple carriers. Availability, provider networks, and drug formularies are set at the county level, so what a neighbor in Montgomery County sees on Medicare.gov may look different from your options here.

The Medicare Plan Finder at medicare.gov lets you enter your ZIP code and your prescriptions to compare plans available in Frederick County. That is the most accurate way to see current choices.

How to decide whether to switch

Before you use your one change, walk through a short checklist:

1. Pull out your plan's "Evidence of Coverage" and look at what changed for 2027. 2. Check your prescriptions against the plan's drug list. The Part D out-of-pocket cap is $2,100 in 2026 and $2,400 in 2027, and the Part D maximum deductible is $700 in 2027 — but formularies still vary by plan. 3. Confirm your doctors and hospitals are in-network for the current year. Networks can change January 1. 4. Think about how you use care. If you travel often or split time outside Maryland, an HMO's local network may feel tight. 5. Ask about the Medicare Prescription Payment Plan if a big drug bill early in the year would be hard on your budget. It lets you spread Part D costs across the calendar year.

If nothing has changed for you and the plan still fits, doing nothing is a perfectly reasonable choice.

Where to get unbiased help

You don't have to figure this out alone, and you don't have to rely on a sales call.

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.

$0$50$100$150$200200820122016202020242026

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 Frederick County

20% are on Medicare Advantage
(MA penetration in Frederick County)
20%
80%
Medicare Advantage Medicare Supplement (Medigap) Original Medicare only
U.S. average

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.

Compare with a licensed agent

See Medicare options serving Frederick & speak with a licensed agent

Medicare Advantage companies in Frederick County

By local enrollment size · informational, not a ranking
CompanyLocal enrollmentPlans offeredLocal agentsAction
HumanaNational—Yes
Carefirst IncRegional—Yes
Kaiser PermanenteRegional—Yes
UnitedHealthcareNational—Yes
Aetna (CVS Health)National—Yes
Johns Hopkins Healthcare LLCRegional—Yes
Enrollment data: CMS Medicare Advantage enrollment by company (county level). Figures shown are illustrative sample data pending the current CMS file. Listed by enrollment size, largest first — this is not a ranking, recommendation, or endorsement of any company or plan.

Provided by licensed insurance partners; MyMedicarePlans.org may be compensated. Not a ranking or endorsement of any plan.

Explore

When can you enroll? An interactive year

JFMAMJJASOND
October 15 – December 7 — anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan. Changes take effect January 1.

Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.

Explore

The parts of Medicare

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health care. Most people pay no premium for Part A.

Good to know

Frequently asked questions

Can I use the Medicare Advantage Open Enrollment Period to join a Medicare Advantage plan for the first time?
No. You must already be enrolled in a Medicare Advantage plan on January 1 to use this window. If you are on Original Medicare and want to switch to Medicare Advantage, you generally need to wait for the Annual Enrollment Period (October 15 – December 7) or qualify for a Special Enrollment Period.
How many changes can I make between January 1 and March 31?
Just one. Once you switch plans or return to Original Medicare, your enrollment is set until the next Annual Enrollment Period, unless you qualify for a Special Enrollment Period.
If I drop my Medicare Advantage plan, can I get a Medigap policy?
Not always without medical underwriting. Federal guaranteed-issue rights are limited, and Maryland's rules are specific. Talk with Maryland SHIP or call 1-800-MEDICARE before you drop Medicare Advantage if a Medigap policy is part of your plan.
When does my new coverage start if I switch in February?
Changes made during the Medicare Advantage Open Enrollment Period take effect the first day of the month after your request is processed. So a February switch typically starts March 1. For personalized guidance on your options in Frederick County, start at **medicare.gov**, call **1-800-MEDICARE**, or reach out to **Maryland SHIP** for free counseling.
Sources & further reading
  • CMS — Medicare enrollment periods (medicare.gov)

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

Also for Frederick

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This page was last updated: September 30, 2026.

Medicare plans in your area changing for 2027 — check yoursCall