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

Jonathan J Prostak, MD

Individual provider Internal Medicine Physician · NPI 1235229105

Jonathan J Prostak, MD is an Internal Medicine in Ann Arbor, Michigan. Graduated from Albert Einstein College of Medicine of Yeshiva University in 2005, 21 years ago. Practices with Regents of the University of Michigan, a 3,271-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Michigan and New York.

Years since qualifying
21
Trained at
Albert Einstein College of Medicine of Yeshiva University
Licensed in
MI, NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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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.

Additional practice locations (2)

  • 2799 W Grand Blvd, Detroit, MI 48202-2608 — (800) 653-6568
  • Weiler - Dept. Of Medicine, Bronx, NY 10461 — (718) 904-2400

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 4301507548 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 236840 (NY)

Record details

NPI number1235229105
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 13, 2006
Last updated in NPPESOctober 28, 2025
Certification dateOctober 28, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolALBERT EINSTEIN COLLEGE OF MEDICINE OF YESHIVA UNIVERSITY
Graduated 2005 (21 years in practice)
Group practice Regents Of The University Of Michigan — 3271 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations13 on file with Medicare

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