Kathy Fosnaugh, D.O.
Family Medicine Physician · Yakima, WA
Kathy Fosnaugh, D.O. is a family medicine physician with a practice address in Yakima, Washington, and NPI 1417377680, issued on Apr 25, 2014. Check the license (Washington OP60576409, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Kathy Fosnaugh
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OP60576409 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1806 W Lincoln Ave, Yakima, WA 98902
- Phone
- (509) 452-4520
- Enumerated
- Apr 25, 2014
- Record last updated
- Dec 4, 2025
- Fax
- (509) 452-5224
- Medicaid ID
- 2035963 WA
- Medicare enrollment
- Enrolled (PECOS I20160802001633); accepts Medicare assignment
- Medical or professional school
- Pacific Nw Un Of Hs, Col Of Osteopathic Medicine, 2014
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 1806 W Lincoln Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathy Fosnaugh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP60576409Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
111 Medicare Part D claims for 79 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin14 claims
- Prednisone13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Columbia Valley Community HealthEast Wenatchee, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathy Fosnaugh among 5,534 family medicine physician records in Washington
Kathy Fosnaugh, D.O. is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 70% of them.
- NPI issued2014 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2014 · median 2009 among the 3,294 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
161 family medicine physician records list a practice address in Yakima
They are 161 of the 3,970 NPPES records with a practice address in Yakima, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Yakima → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Vicki Black, M.D.Yakima, WA 989021609875038
- Roger Bracchi, M.D.Yakima, WA 989021811996127
- Nathaniel Davenport, MDYakima, WA 989021871588921
- Gray Dawson, M.D.Yakima, WA 989021417937509
- John Dawson, M.D.Yakima, WA 989021114985090
- Mark Deramo, M.D.Yakima, WA 989021205835576
- Katherine Funk, M.D.Yakima, WA 989021093718843
- Brent Herr, MDYakima, WA 989021982670881
Common questions
What is Kathy Fosnaugh, D.O.'s NPI number?
Kathy Fosnaugh, D.O.'s National Provider Identifier (NPI) is 1417377680, issued on Apr 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Kathy Fosnaugh, D.O. located?
The NPPES record lists a practice address at 1806 W Lincoln Ave, Yakima, WA, 98902. Phone: (509) 452-4520. Providers update this record themselves, so call before visiting.
How can I verify Kathy Fosnaugh, D.O.'s license?
NPPES lists Washington license number OP60576409, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathy Fosnaugh, D.O. prescribe under Medicare Part D?
In 2024, Kathy Fosnaugh, D.O. had 111 Medicare Part D claims for 79 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.