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Medigap in ZIP code 99357, Royal City area
99357 is in Grant County, where 15 insurers sell Medicare Supplement plans: 15 sell Plan G and 14 sell Plan N.
- County
- Grant
- Closest community
- Royal City
- Medicare clinicians in 99357
- 2
- Nearest hospital
- 21 mi
CMS lists 2 Medicare clinicians practicing at addresses in 99357, all listed as always accepting Medicare assignment. Practices here include Central Washington Health Services Association. Counting everything within 8 miles of the ZIP's center: 2 clinicians, 0.0% sometimes declining assignment (statewide 4.5%). Nearest general hospital: Quincy Valley Medical Center in Quincy, about 21 miles. Nearest Medicare-certified nursing home: Othello Post Acute, about 24 miles (4 of 5 stars).
Medigap plans sold in 99357
| 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 |
Hospitals near 99357
| Hospital | Distance | Type | CMS overall rating |
|---|---|---|---|
| Quincy Valley Medical Center Quincy | 21 mi | Critical access | not rated |
| Othello Community Hospital Othello | 24 mi | Critical access | not rated |
| Samaritan Hospital Moses Lake | 24 mi | Acute care | 2 of 5 stars |
Communities near 99357
- Royal City (2 mi)
- Schwana (13 mi)
- Beverly (13 mi)
- Marine View (15 mi)
- Mattawa (16 mi)
Neighboring ZIP codes: 99321, 99349, 98950, 98824, 98848, 99344.
Common questions
Which insurers sell Medigap Plan G in 99357?
15 insurers sell Plan G to Grant County residents (OIC chart current as of October 8, 2026).
How many Medigap insurers sell in 99357?
15, the Grant County line-up.
Sources
- Washington OIC / SHIBA, 2026 Approved Medicare Supplement (Medigap) plans (rates current as of October 8, 2026)
- Washington OIC, Medigap (Medicare Supplement) plan coverage and costs
- CMS Doctors and Clinicians National Downloadable File (data.cms.gov dataset mj5m-pzi6), released Nov. 12, 2026
- CMS Hospital General Information (data.cms.gov dataset xubh-q36u)
- CMS Nursing Home Provider Information, October 2026 (data.cms.gov dataset 4pq5-n9py)
- U.S. Census Bureau 2024 Gazetteer files; 2024 population estimates (SUB-EST2024)
- U.S. Census Bureau 2024 ZCTA Gazetteer; 2020 ZCTA-to-county relationship file