Home / Cities / Mattawa / ZIP 99349

Medigap in ZIP code 99349, Mattawa area

By Vadim Marusin, licensed Medicare insurance agent in Washington (WAOIC #1365574). Insurer data checked against the state chart current as of October 8, 2026.

99349 is in Grant County, where 15 insurers sell Medicare Supplement plans: 15 sell Plan G and 14 sell Plan N.

ZIP 99349, Grant County

County: Grant
Closest community: Mattawa
Medicare clinicians in 99349: 35
Nearest hospital: 16 mi

CMS lists 35 Medicare clinicians practicing at addresses in 99349; 1 may not always accept Medicare assignment. Practices here include Columbia Basin Health Association and Grant County Public Hospital District No 5. Counting everything within 8 miles of the ZIP's center: 35 clinicians, 2.9% sometimes declining assignment (statewide 4.5%). Nearest general hospital: Astria Sunnyside Hospital in Sunnyside, about 16 miles. Nearest Medicare-certified nursing home: Othello Post Acute, about 26 miles (4 of 5 stars).

18,302 people on Medicare in Grant County63% in Original Medicare (WA 50%)11% of those 65+ are 85 or older

Medigap plans sold in 99349

Grant County line-up. Full list: Mattawa. OIC chart, October 8, 2026.
Plan	Insurers	Who
Plan G	15	Asuris, Bankers Reserve Life, First Health Life & Health, GPM Health & Life, HumanaDental, Insurance Company of North America and more
Plan N	14	Asuris, Bankers Reserve Life, First Health Life & Health, GPM Health & Life, HumanaDental, Insurance Company of North America and more
High-deductible Plan G	6	HumanaDental, Insurance Company of North America, Premera, United American, United World Life (Mutual of Omaha), Washington National
Plan A	14	Asuris, Bankers Reserve Life, First Health Life & Health, GPM Health & Life, HumanaDental, Insurance Company of North America and more
Plan K	2	Asuris, UnitedHealthcare (AARP)
Plan F	13	Asuris, Bankers Reserve Life, First Health Life & Health, GPM Health & Life, HumanaDental, Insurance Company of North America and more

Source: CMS Doctors and Clinicians file.
Specialty in 99349	Clinicians
Mental health	2
Eye care	2

Hospitals near 99349

Straight-line distance from the town center. Source: CMS Hospital General Information.
Hospital	Distance	Type	CMS overall rating
Astria Sunnyside Hospital Sunnyside	16 mi	Critical access	2 of 5 stars
Othello Community Hospital Othello	26 mi	Critical access	not rated
Quincy Valley Medical Center Quincy	31 mi	Critical access	not rated

Communities near 99349

Mattawa (10 mi)
Desert Aire (11 mi)
Schwana (12 mi)
Royal City (12 mi)
Beverly (13 mi)

Neighboring ZIP codes: 99357, 99321, 98950, 98944, 98824, 99344.

Common questions

Which insurers sell Medigap Plan G in 99349?

15 insurers sell Plan G to Grant County residents (OIC chart current as of October 8, 2026).

How many Medigap insurers sell in 99349?

15, the Grant County line-up.