My Medicare Advantage Plan Is Ending in Maple Valley

Measured by older residents, Maple Valley is one of the youngest cities in King County. Only about 9.6% of residents are 65 or older, roughly 2,700 people, per the Census Bureau's 2020–2024 survey. If your Medicare Advantage plan is ending, the decision comes down to a few facts about you, and the sections below are sorted that way: find the one that sounds like your situation.

First, what's true for everyone

Your plan keeps covering you through December 31, 2026. Choose a replacement by then and it begins January 1. Since your plan is ending, you also have a special enrollment period from December 8, 2026 to February 28, 2027, but anything picked after December 31 starts February 1 or March 1. If you choose nothing, you'll be in Original Medicare on January 1 with no drug plan, unless you get Extra Help (CMS reassigns those members to a stand-alone drug plan).

Neither the state DOH file nor the CMS hospital file shows a hospital with a Maple Valley address. Whatever plan you look at, check the out-of-town hospital and specialists you actually use.

Which of these sounds like you?

"I like my doctors and want to keep them."

List each provider you saw this year. For any Medicare Advantage plan you're considering, look each one up in the plan's 2027 provider directory, and call the office to confirm. If keeping every one of them is the priority, Original Medicare skips networks entirely; any Medicare-participating provider nationwide will do. If you pick it, you can pair it with Medigap, and your plan's exit gives you a Washington guaranteed issue right to certain Medigap plans, no medical questions, as long as you land in Original Medicare. Apply starting November 1 (OIC's guidance) and no later than March 4, 2027.

"I take several prescriptions."

Your drug coverage ends with your plan. Enter every drug, dose and your pharmacy in Medicare Plan Finder and compare 2027 options, both Medicare Advantage plans with drug coverage and stand-alone Part D plans. Federal rules cap 2027 out-of-pocket spending on covered Part D drugs at $2,400. Don't let your drug coverage lapse into January; going 63 days or more without creditable coverage can mean a late penalty that stays on your premium for as long as you have Medicare drug coverage.

"I'm on Medicare because of a disability, and I'm under 65."

You're not unusual: 21,859 King County residents qualify for Medicare through disability rather than age. The Medigap road is harder for you, though. Federal rules mostly leave it to insurers whether to sell supplements before 65, and CMS doesn't count Washington among the states that force them to. Our state's plan-termination statute sets no minimum age, yet an insurer is only bound to offer policies it already sells to new applicants, so in practice the menu may be short. OIC itself acknowledges people under 65 have fewer choices. Talk to SHIBA (800-562-6900) before dropping into Original Medicare. Turning 65 later brings a new six-month Medigap open enrollment period.

"I'm a retired Washington public employee."

If your Medicare coverage comes through the Public Employees Benefits Board, OIC's advice is to contact the Health Care Authority directly rather than shopping on your own. PEBB retiree open enrollment runs October 26 through November 23, 2026, with changes effective January 1, 2027. PEBB Benefits Services: 1-800-200-1004.

"Money is tight."

Apply for a Medicare Savings Program through washingtonconnection.org. These Apple Health benefits help with Medicare premiums and, for some, deductibles and copays; HCA says there's no asset test. Qualify and you're automatically eligible for Extra Help with drug costs too. King County had 58,692 dual-eligible residents in July 2026, so this is far from rare.

Maple Valley and King County numbers

Measure	Maple Valley	King County
Population (OFM, April 1, 2026)	29,340	–
Residents 65+ (ACS 2020–2024)	about 2,700 (±364)	320,899
Share 65+	9.6%	14.0%
People with Medicare, July 2026	not published	368,813
Medicare Advantage and other health plans	–	53.6%
Disabled beneficiaries	–	21,859
Dual-eligible	–	58,692

Sources: WA OFM; U.S. Census Bureau ACS 2020–2024 (B09020); CMS Medicare Monthly Enrollment, July 2026 (county only).

Among the 25 King County cities with more than 10,000 people, Maple Valley ranks 23rd for share of residents 65 and up. If you're newer to Medicare, check when you were first eligible: if it was on or after January 1, 2020, your guaranteed Medigap choices are Plans A, B, D, G (including high-deductible G), K and L. The full table is in the statewide guide.

Help in and around Maple Valley

The Greater Maple Valley Community Center at 22010 SE 248th Street (at Witte Road SE) runs a senior adult program for people 50 and over from the greater Maple Valley area, with information and referral, advocacy and activities on Mondays, Wednesdays and Fridays, 8:30 a.m. to 5 p.m.

For unbiased Medicare counseling, call SHIBA statewide at 800-562-6900 between 8:30 and 4:30 on weekdays. The local SHIBA sponsor offices for King County showed a "not accepting appointments" notice on OIC's site when we checked October 26, 2026, with a referral to 1-800-MEDICARE (1-800-633-4227), which takes calls 24 hours a day, 7 days a week, except some federal holidays.

Each answer above leans on federal Medicare law and Washington statute, while your plan's notice fixes your actual dates; a quick call to SHIBA, Medicare or a licensed agent can confirm them before you change anything.

Maple Valley readers ask

Which hospital should a Maple Valley resident check in a new network?

Whichever one you would actually be taken to or choose for surgery. The state and federal hospital files list none with a Maple Valley address, so it will be outside the city.

I’m under 65 with Medicare. Can I buy Medigap when my plan ends?

Possibly, but options are limited. Washington’s plan-ending rule has no age limit, yet insurers only must offer policies they sell to new customers, and federal law generally doesn’t require sales to people under 65. Call SHIBA at 800-562-6900.

I’m a PEBB retiree in Maple Valley. Who do I call?

Contact the Health Care Authority’s PEBB Benefits Services at 1-800-200-1004. PEBB retiree open enrollment runs October 26 through November 23, 2026.

What happens if I miss December 31?

You can still choose through February 28, 2027, but coverage starts February 1 or March 1, and you would be in Original Medicare without a drug plan in the meantime unless you get Extra Help.

My Medicare Advantage plan is ending in Maple Valley. Which situation are you in?