WILLIAM LON PETERSON LANCASTER PA-C
NPI 1386531184
Physician Assistant in Saint Joseph, MI
About William Lon Peterson Lancaster Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM LON PETERSON LANCASTER PA-C (NPI 1386531184) is an individual physician assistant in Saint Joseph, Michigan, licensed in Michigan (5601013212) and active in the NPI registry since June 2025. He is enrolled in Medicare PECOS, is affiliated with Lakeland Hospital, St Joseph, and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
William Lon Peterson Lancaster Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lakeland Hospital, St Joseph
Acute Care Hospitals · St Joseph, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49085 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Lancaster's NPI number?
The NPI number for William Lancaster is 1386531184. It was assigned to this individual provider in the NPPES registry on June 23, 2025.
Where is William Lancaster located?
William Lancaster practices at 1234 Napier Ave, Saint Joseph, MI 49085. The listed phone number is (269) 983-8300.
What is William Lancaster's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is William Lancaster enrolled in Medicare?
Yes. William Lancaster is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does William Lancaster accept?
Health plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list William Lancaster as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is William Lancaster affiliated with any hospitals?
According to CMS data, William Lancaster is affiliated with Lakeland Hospital, St Joseph.
When was this NPI record last updated?
The NPPES record for William Lancaster was last updated on September 16, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
