Medigap in Prosser, WA: Medicare Supplement plans and insurers

CMS lists 208 clinicians with practice locations within 8 miles of Prosser, including 90 in primary care (family and internal medicine, nurse practitioners and physician assistants). 18 of them (8.7%) are listed as only sometimes accepting assignment, against 4.5% statewide. Those providers can bill up to 15% above the Medicare-approved amount. That makes the excess-charge coverage in Plan G worth more in Prosser than in most of Washington. Within 25 miles, CMS lists clinicians in physical therapy, mental health, chiropractic, general surgery, cardiology, eye care, and orthopedics. Practices with Medicare clinicians near Prosser include Yakima Valley Farm Workers Clinic, Columbia Physical Therapy Inc. PS, and Prosser Public Hospital District of Benton County.

The closest hospital to Prosser is Prosser Memorial Hospital in Prosser, about 5 miles away (a critical access hospital: a small rural hospital with 25 or fewer inpatient beds). The highest-rated hospital in that list is Kadlec Regional Medical Center, 4 of 5 stars on CMS's overall rating. Medigap has no hospital network: the Part A deductible ($1,736 in 2026) is covered the same here as anywhere.

4 Medicare-certified nursing homes are within 35 miles of Prosser. The highest-rated is Richland Post Acute in Richland (5 of 5 stars). Plans G and N pay the $217-a-day coinsurance for days 21 to 100 (2026).

Prosser is about 25 miles from Oregon. Your Washington Medigap policy pays the same at Oregon doctors and hospitals that accept Medicare, with no network. Oregon doesn't ban Part B excess charges, so if you use providers there, Plan G's excess-charge coverage can matter.

Of the regional Blue plans, Asuris Northwest Health sells in Benton County. WSHIP status: not a reasonable-choice county (what that means). See the Benton County page for the county-wide view.