Medicare plan discontinued in Centralia: the dates that matter

Three dates run this whole decision for a Centralia resident whose Medicare Advantage plan is going away: December 31, 2026, February 28, 2027 and March 4, 2027. The first is the plan's last day and your no-gap deadline. The second closes your special enrollment period. The third ends your right to buy a Medigap policy without health questions. Everything else hangs off those three.

Your calendar, month by month

Sources: CMS CY 2027 Enrollment and Disenrollment Guidance (section 30.6.10); Washington OIC; RCW 48.66.055; Medicare.gov Part D costs.

If you don't choose anything, Medicare enrolls you in Original Medicare on January 1. You keep Part A and Part B. You don't automatically get a drug plan unless you receive Extra Help, in which case CMS assigns one. And the January-through-March Medicare Advantage Open Enrollment Period won't help you in that case, because it's only for people already in a Medicare Advantage plan. The Washington statewide guide covers the reasoning behind each of these dates.

Centralia in numbers

OFM puts Centralia at 19,130 residents as of April 1, 2026, a little over a fifth of Lewis County. The Census Bureau's 2020–2024 survey estimates about 3,900 residents 65 and older (margin of error ±381), roughly 20.7% of the city, close to the county's 21.4% on the same survey.

The county numbers are what tell you how common your situation is. In July 2026, CMS counted 23,261 Lewis County residents on Medicare, and 13,188 of them (56.7%) were in Medicare Advantage or other health plans, well above the statewide 49.7%.

Extra Help, and why Centralia's Social Security office matters

Lewis County has 3,909 people with both Medicare and Apple Health. If drug prices are part of your worry, Extra Help is the program to look at. It lowers Part D costs, it waives the Part D late enrollment penalty, and if you have it, CMS places you in a drug plan when your Medicare Advantage plan ends. You qualify automatically if you're on Medicaid, a Medicare Savings Program or SSI. Otherwise, you apply through Social Security.

Centralia has a Social Security field office at 1821 Cooks Hill Rd, Suite 100. Social Security's office list shows its phone as 855-848-7942 and hours as Monday through Friday, 9 a.m. to 4 p.m. Call before you go; hours and walk-in rules change.

Two more programs work alongside Extra Help:

• Medicare Savings Programs, run by the state's Health Care Authority, help pay Medicare premiums and, at the lowest income level, deductibles and copays. There's no asset test. Apply at washingtonconnection.org.
• If you have Medicaid or Extra Help, you can also change stand-alone drug plans once each calendar month, so a first pick that doesn't work out isn't permanent.

The hospital, the bus, and new doctors

The Department of Health lists an acute care hospital in Centralia on Scheuber Road, one of two hospitals in Lewis County (the other is Arbor Health Hospital in Morton). Before choosing another Medicare Advantage plan, confirm that hospital, your primary care office and any specialists in Chehalis, Olympia or Longview will be in that plan's network for 2027. Original Medicare takes network questions off the table: any provider that accepts Medicare.

Getting there doesn't have to cost anything. Lewis County Transit's fixed routes are fare-free until further notice, and a city route (Orange) stops at the hospital's west entrance on Scheuber Road, and city routes run between Centralia and Chehalis. The Green route continues to Olympia. If a disability keeps you off the regular bus, LIFTT is free door-to-door service within three-quarters of a mile of a fixed route, after an approved application (dispatch 360-330-5555).

Talking it through for free

SHIBA, the state's free and unbiased Medicare counseling program, is sponsored in Lewis County by Timber River Connections in neighboring Chehalis. When I checked on October 26, 2026, OIC's local SHIBA listings were marked as not accepting appointments and directed people to Medicare. SHIBA's statewide line, 800-562-6900, still answers weekdays from 8:30 a.m. to 4:30 p.m., and Medicare takes calls at 1-800-633-4227 24 hours a day, 7 days a week, except some federal holidays.

For other services for older adults, the Lewis-Mason-Thurston Area Agency on Aging's Community Living Connections office is at 1651 S. Market Blvd. in Chehalis, 360-748-2288.

The dates in your plan's notices are the ones that apply to you, and federal Medicare rules plus Washington law sit above anything written here, so confirm your own case with 1-800-MEDICARE, SHIBA or a licensed agent.

Related pages: Washington statewide guide · Lewis County

Centralia residents also ask

Sources

1. CMS: CY 2027 MA and Part D Enrollment and Disenrollment Guidance
2. Washington OIC: Is your Medicare Advantage plan changing or leaving?
3. RCW 48.66.055: Medigap guaranteed issue
4. Medicare.gov: Part D costs, late enrollment penalty and Extra Help
5. Medicare.gov: Special Enrollment Periods
6. WA OFM April 1, 2026 population estimates
7. U.S. Census Bureau ACS 2020–2024 5-year, table B09020
8. CMS Medicare Monthly Enrollment, July 2026
9. Social Security field office open data (addresses and hours)
10. Washington HCA: Medicare Savings Program
11. WA DOH hospital financial data (licensed hospitals)
12. Lewis County Transit: Bus routes
13. Lewis County Transit: LIFTT ADA transportation
14. Washington OIC: Find a local SHIBA office (checked Oct 26, 2026)
15. Washington Community Living Connections: local contacts