Quick answers
- Does Kathy S. Fosnaugh accept Medicare assignment?
- Yes. Medicare's clinician data says Kathy S. Fosnaugh accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Kathy S. Fosnaugh's NPI number?
- 1417377680. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kathy S. Fosnaugh works
Medicare's Facility Affiliation Data lists Kathy S. Fosnaugh at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- North Valley HospitalTonasket, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501321
- Providence Mount Carmel HospitalColville, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501326
- Quincy Valley Medical CenterQuincy, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501320
- Three Rivers HospitalBrewster, WA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 501324
Practice locations
Addresses where Kathy S. Fosnaugh is enrolled with Medicare (CMS data updated October 2, 2026).
- 502 W 4th AveToppenish, WA 98948 (509) 865‑3105
- 940 Eastmont AveEast Wenatchee, WA 98802 (509) 884‑9000
Group practices
Medicare enrollment lists Kathy S. Fosnaugh as a member of these groups (CMS data updated October 2, 2026).
- Columbia Valley Community Health62 clinicians in the group
- Olney Emergency Group, a Professional LLC20 clinicians in the group
Specialties
- Family Practiceprimary
- Emergency Medicinealso
Other family doctors in Toppenish
Clinicians with the same Medicare primary specialty in Toppenish, WA — not a recommendation.
Other clinicians in Columbia Valley Community Health
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Pacific Nw Un Of Hs, Col Of Osteopathic Medicine |
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417377680 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians