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

William R Harper, MD

Individual provider Internal Medicine Physician · NPI 1629131149

William R Harper, MD is an Internal Medicine Physician in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

737 N Michigan Ave Ste 2020
Chicago, IL 60611
Phone: (855) 947-7371
Fax: (312) 284-4124
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036097080 (IL)

Record details

NPI number1629131149
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 18, 2006
Last updated in NPPESAugust 16, 2018

Other providers in Chicago