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

Dr. Ronald John Maggiore, MD

Individual provider Internal Medicine Physician · NPI 1609834977

Dr. Ronald John Maggiore, MD is an Internal Medicine Physician in Ann Arbor, Michigan. Works from 2 locations. Licensed in Connecticut, Illinois, Michigan and New York and 2 more.

Licensed in
CT, IL, MI, NY, OR, WI
In the registry since
2006
Specialties on file
8
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2366 Oak Valley Dr
Ann Arbor, MI 48103
Phone: (877) 227-8823
Fax: (313) 578-6393
Show map & directions

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

Additional practice locations (1)

  • 601 Elmwood Ave, Rochester, NY 14642-2964 — (585) 275-5823

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 4301506862 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 48589 (WI)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence 036-124824 (IL)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 286694 (NY)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 045699 (CT)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 036-124824 (IL)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence MD163132 (OR)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 286694 (NY)

Record details

NPI number1609834977
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2006
Last updated in NPPESMay 12, 2022
Certification dateMay 12, 2022
Mailing address400 Galleria Officentre Ste 400, Southfield, MI 48034-2162

Other providers in Ann Arbor