NPPES file of Aug 9, 2026

Joseph Winter Kotnour, PA

Physician Assistant · Federal Way, WA

Joseph Winter Kotnour, PA is a physician assistant with a practice address in Federal Way, Washington, and NPI 1093223299, issued on Jan 22, 2018. Check the license (Washington PA60969088, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093223299
Name
Joseph Winter Kotnour
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
PA60969088 WA
Self-reported in NPPES; status is on the state search
Practice location
34515 9TH Ave S, Federal Way, WA 98003
Phone
(253) 426-6341
Enumerated
Jan 22, 2018
Record last updated
Apr 26, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(253) 426-6344
Medicaid ID
2138465 WA
Medicare enrollment
Enrolled (PECOS I20191009002391); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 34515 9TH Ave S

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Karlis AbulsPharmacist1609734565
  2. Fizzah Ali, M.D.Hospitalist Physician1265524961
  3. Sreekanth Ambati, MDHospitalist Physician1750592887
  4. Berhane Asfaw, MDHospitalist Physician1760593057
  5. Ann Asmussen, DOAnesthesiology Physician1932718079
  6. Jonathan BarnierAnesthesiology Physician1407233174

Verify Joseph Winter Kotnour in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license PA60969088
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average physician assistant in 2024

103 Medicare Part D claims for 45 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Joseph Kotnour103
  2. Specialty average830

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

  1. Franciscan Medical GroupLakewood, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Joseph Winter Kotnour among 3,718 physician assistant records in Washington

Joseph Winter Kotnour, PA is one of 3,718 physician assistant records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 63% of them.

  • NPI issued2018 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2017 · median 2017 among the 2,460 with a school on file
  • Record last updated2021 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 physician assistant records list a practice address in Federal Way

They are 48 of the 2,770 NPPES records with a practice address in Federal Way, and 3,718 physician assistant records in Washington.

The 8 physician assistant records with the nearest ZIP codes

  1. Maureen Batterberry, PA CFederal Way, WA 980031962450064
  2. Maria Detherage, MS, RPACFederal Way, WA 980031720219173
  3. Lavonne Felton, P.A.Federal Way, WA 980031477601797
  4. John Gaudino, P.A.-C.Federal Way, WA 980031033306535
  5. Rayleen Greathouse, PA-CFederal Way, WA 980031952319972
  6. Cheryll Handy, PA CFederal Way, WA 980031912942871
  7. Richard Hanson, PA, MPASFederal Way, WA 980031134117153
  8. Kevin Lafave, PA-CFederal Way, WA 980031265477129

Common questions

What is Joseph Winter Kotnour, PA's NPI number?

Joseph Winter Kotnour, PA's National Provider Identifier (NPI) is 1093223299, issued on Jan 22, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Winter Kotnour, PA located?

The NPPES record lists a practice address at 34515 9TH Ave S, Federal Way, WA, 98003. Phone: (253) 426-6341. Providers update this record themselves, so call before visiting.

How can I verify Joseph Winter Kotnour, PA's license?

NPPES lists Washington license number PA60969088, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Joseph Winter Kotnour, PA prescribe under Medicare Part D?

In 2024, Joseph Winter Kotnour, PA had 103 Medicare Part D claims for 45 beneficiaries; the average among physician assistant prescribers was 830. 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.