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

Kathleen A Mahan, MD

Individual provider Family Medicine Physician · NPI 1639100464

Kathleen A Mahan, MD is an Internal Medicine in Lombard, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 2002, 24 years ago. Practices with Dupage Medical Group Ltd, a 1,328-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
24
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
MI
In the registry since
2006
Specialties on file
3
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

1801 S Highland Ave Ste 130
Lombard, IL 60148-4932
Phone: (630) 627-4722
Fax: (630) 627-9134
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 4301093916 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301093916 (MI)
Pediatrics Physician Taxonomy 208000000X · Licence 4301093916 (MI)

Record details

NPI number1639100464
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2006
Last updated in NPPESDecember 6, 2016

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Dupage Medical Group Ltd — 1328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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