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

Dr. Mary Michael Westerholm, MD

Individual provider Internal Medicine Physician · NPI 1790951093

Dr. Mary Michael Westerholm, MD is an Internal Medicine in Winfield, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2004, 22 years ago. Practices with Central Dupage Physician Group, a 1,094-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
22
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IL
In the registry since
2008
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

25 N Winfield Rd
Winfield, IL 60190-1222
Phone: (630) 653-0848
Fax: (630) 653-7746
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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 036116854 (IL)
Pediatrics Physician Taxonomy 208000000X · Licence 036116854 (IL)

Record details

NPI number1790951093
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 6, 2008
Last updated in NPPESApril 15, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Central Dupage Physician Group — 1094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Winfield