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

Margaret M Chapman, MD

Individual provider Internal Medicine Physician · NPI 1164748471

Margaret M Chapman, MD is a Hospitalist in Chicago, Illinois. Graduated from University of Washington School of Medicine in 2010, 16 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Illinois and Washington.

Years since qualifying
16
Trained at
University of Washington School of Medicine
Licensed in
IL, WA
In the registry since
2010
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

251 E Huron St Ste 16-738
Chicago, IL 60611-2908
Phone: (206) 914-5923
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036.135002 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60386184 (WA)

Record details

NPI number1164748471
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2010
Last updated in NPPESMay 6, 2014

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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