Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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William Lon Peterson Lancaster, PA-C

Individual provider Physician Assistant · NPI 1386531184

William Lon Peterson Lancaster, PA-C is a Physician Assistant in Saint Joseph, Michigan. Qualified in 2025, 1 year ago. Practices with Lakeland Medical Practices, a 287-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
1
Licensed in
MI
In the registry since
2025
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

1234 Napier Ave
Saint Joseph, MI 49085-2112
Phone: (269) 983-8300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 5601013212 (MI)

Record details

NPI number1386531184
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedJune 23, 2025
Last updated in NPPESSeptember 16, 2025
Certification dateSeptember 16, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice Lakeland Medical Practices — 287 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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