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

Ronald J Koenig, MD

Individual provider Internal Medicine Physician · NPI 1982787818

Ronald J Koenig, 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 1st Fl Cancer & Geriatrics Center
Ann Arbor, MI 48109-5354
Phone: (734) 763-4876
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 4301052578 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301052578 (MI)

Record details

NPI number1982787818
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 23, 2006
Last updated in NPPESOctober 24, 2019

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