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

John Joseph Osterholzer, MD

Individual provider Internal Medicine Physician · NPI 1669588083

John Joseph Osterholzer, MD is an Internal Medicine Physician in Ann Arbor, Michigan. Licensed in Michigan. Registered with an NPI since 2006.

Licensed in
MI
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 3rd Fl Taubman Ctr Recp C
Ann Arbor, MI 48109-5360
Phone: (734) 647-9342
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 4301074496 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301074496 (MI)

Record details

NPI number1669588083
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 21, 2006
Last updated in NPPESMarch 27, 2012

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