Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Brian Arthur Trojniak, PA-C, MS

Individual provider Physician Assistant · NPI 1912056714

Mr. Brian Arthur Trojniak, PA-C, MS is a Physician Assistant in Ann Arbor, Michigan. Licensed in Michigan. Registered with an NPI since 2007.

Licensed in
MI
In the registry since
2007
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

1500 E Medical Center Dr B1 Fl University Hospital Recp Emergency
Ann Arbor, MI 48109-5301 Not confirmed with CMS for 14 years — call before visiting
Phone: (734) 936-6666
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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 5601001601 (MI)

Record details

NPI number1912056714
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C , MS
Sole proprietorNo
NPI enumeratedJanuary 9, 2007
Last updated in NPPESFebruary 21, 2012

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients192
Services billed 213 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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