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Medicare Supplement (Medigap) plans in Columbia County, Washington

Every insurer selling Medigap in Columbia County and the plans each one offers. Covers Dayton and Starbuck.

Insurers selling here
15 of 17
Sell Plan G
15
County seat
Dayton
Region
Southeast Washington

15 of the 17 insurers we track sell Medicare Supplement insurance in Columbia County. Residents of Dayton and Starbuck choose from the same list, and each insurer charges them the same premium it charges anywhere else in Washington for that plan. 15 of them sell Plan G here, and 6 sell high-deductible Plan G. Columbia County is one of the 22 counties where Regence BlueShield sells Medigap, including Plan K. Asuris Northwest Health does not sell here.

Premera Blue Cross sells its individual Medigap plans here. Columbia County is not on the list of counties with a reasonable choice of Medicare Advantage plans, so a resident declined by Medigap insurers for health reasons may qualify for the WSHIP Medicare Supplement plan. See if you're turned down for Medigap.

Every plan and insurer in Columbia County

Insurer selling in Columbia CountyABDGHD-GKLNCFHD-F
Bankers Reserve Life✓––✓–––✓–✓–
First Health Life & Health✓✓–✓–––✓–✓–
GPM Health & Life✓––✓–––✓–✓–
HumanaDental✓––✓✓––✓–✓✓
Insurance Company of North America✓––✓✓––✓–✓–
Medco Containment Life✓––✓–––✓–✓✓
Premera✓––✓✓––✓✓––
Regence BlueShield✓––✓–✓–✓✓✓–
State Farm✓–✓✓–––✓✓✓–
USAA✓––✓–––✓–✓–
United American✓✓✓✓✓––✓✓✓✓
United World Life (Mutual of Omaha)✓––✓✓––✓–✓–
UnitedHealthcare (AARP)✓✓–✓–✓✓✓✓✓–
Washington National✓––✓✓––✓–✓–
WA Health Care Authority Premera Plan G–––✓–––––––
✓ = the insurer is approved to sell that plan. – = not offered. HD = high-deductible. Plans C and F: first eligible for Medicare before 2020 only. Washington OIC approved Medigap chart, current as of October 8, 2026.

Largest towns

TownPopulation (2024)
Dayton2,471
Starbuck138

Hospitals in Columbia County

Hospital–TypeCMS overall rating
Dayton General Hospital
Dayton
under 1 miCritical accessnot rated
Straight-line distance from the town center. Source: CMS Hospital General Information.

Doctors in Columbia County

49 Medicare clinician listings at Columbia County addresses; 2.0% are marked as sometimes declining Medicare assignment (statewide 4.5%). That's below the state level, so excess charges are less of a concern here.

SpecialtyClinicians in county
Cardiology1
Cancer care0
Orthopedics0
Eye care0
Kidney care0
Neurology0
Lung care0
Digestive care0
Urology0
Dermatology0
Diabetes and hormone care0
Ear, nose and throat0
Physical therapy0
Mental health5
Hearing0
Source: CMS Doctors and Clinicians file.

All 2 cities and communities in Columbia County · Plan pages: Plan G, Plan N, High-deductible Plan G, Plan A, Plan K, Plan F

Common questions

Which insurers sell Medigap Plan G in Columbia County?

15: Bankers Reserve Life, First Health Life & Health, GPM Health & Life, HumanaDental, Insurance Company of North America, Medco Containment Life, Premera, Regence BlueShield, State Farm, USAA, United American, United World Life (Mutual of Omaha), UnitedHealthcare (AARP), WA Health Care Authority Premera Plan G, Washington National.

Are Medigap premiums higher in Columbia County than in Seattle?

No. Each insurer charges the same premium for a plan everywhere it sells in Washington. Counties differ only in which insurers sell there.

How many Medigap insurers sell in Columbia County?

15. Not available here: Asuris and Regence BlueCross BlueShield of Oregon.

Where can I get free Medicare help in Columbia County?

SHIBA, the state's free Medicare counseling program, takes calls at 1-800-562-6900 and can connect you to a local volunteer.

Sources

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