Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Michael Joel Grotenrath, PA-C

Individual provider Surgical Physician Assistant · NPI 1619144961

Mr. Michael Joel Grotenrath, PA-C is a Physician Assistant in Ann Arbor, Michigan. Qualified in 2008, 18 years ago. Practices with St Joseph Mercy Hospital, a 68-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
18
Licensed in
MI
In the registry since
2008
Specialties on file
2
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

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone: (734) 936-4000
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 5601005245 (MI)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence 5601005245 (MI)

Record details

NPI number1619144961
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedMay 14, 2008
Last updated in NPPESJune 11, 2020
Certification dateJune 11, 2020

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice St Joseph Mercy Hospital — 68 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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