NPPES file of Aug 9, 2026

John Thomas Foss, PA-C

Physician Assistant · Muskegon, MI

John Thomas Foss, PA-C is a physician assistant with a practice address in Muskegon, Michigan, and NPI 1285680991, issued on May 25, 2006. Check the license (Michigan 5601002313, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1285680991
Name
John Thomas Foss
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
5601002313 MI
Self-reported in NPPES; status is on the state search
Practice location
1500 E Sherman Blvd, Muskegon, MI 49444
Phone
(231) 672-3883
Enumerated
May 25, 2006
Record last updated
Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040429000077); 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 1500 E Sherman Blvd

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

  1. Leslie Adkins, PA-CPhysician Assistant1457579849
  2. Irteza Afzal, MDStudent in an Organized Health Care Education/Training Program1558105296
  3. Theourrn Amalathasan, MDStudent in an Organized Health Care Education/Training Program1689366767
  4. Robin Anderson, NPNurse Practitioner1326188004
  5. Nathan Arnold, DOEmergency Medicine Physician1598784167
  6. Kaitlyn Averill, RN, AGCNS-BCRegistered Nurse1891534392

Verify John Thomas Foss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 5601002313
    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 Michigan 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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Bills Medicare through one group practice

  1. Mercy Specialty ServicesMuskegon, MI

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

John Thomas Foss among 6,989 physician assistant records in Michigan

John Thomas Foss, PA-C is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 83% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1990 · median 2017 among the 4,739 with a school on file
  • Record last updated2021 · 40% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

139 physician assistant records list a practice address in Muskegon

They are 139 of the 2,646 NPPES records with a practice address in Muskegon, and 6,989 physician assistant records in Michigan.

The 8 physician assistant records with the nearest ZIP codes

  1. Brian Akre, PACNorton Shores, MI 494441629055405
  2. Angela Beezley, PACNorton Shores, MI 494441669424719
  3. Daniel Caldwell, PACMuskegon, MI 494441548247323
  4. Matthew Dundon, P.A.C.Muskegon, MI 494441770546194
  5. Adam Geller, PACMuskegon, MI 494441285633172
  6. Dean Kendziera, PA-CMuskegon, MI 494441750382735
  7. Holly Knowles, PA-CMuskegon, MI 494441073549044
  8. Kellie Laskowski, PA CMuskegon, MI 494441770574634

Common questions

What is John Thomas Foss, PA-C's NPI number?

John Thomas Foss, PA-C's National Provider Identifier (NPI) is 1285680991, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Thomas Foss, PA-C located?

The NPPES record lists a practice address at 1500 E Sherman Blvd, Muskegon, MI, 49444. Phone: (231) 672-3883. Providers update this record themselves, so call before visiting.

How can I verify John Thomas Foss, PA-C's license?

NPPES lists Michigan license number 5601002313, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity 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.