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

Jeffrey Tomaszewski, MD

Individual provider Internal Medicine Physician · NPI 1831150036

Jeffrey Tomaszewski, MD is an Internal Medicine in Glen Ellyn, Illinois. Graduated from Rush Medical College of Rush University in 2002, 24 years ago. Practices with Dupage Medical Group Ltd, a 1,328-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
24
Trained at
Rush Medical College of Rush University
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

430 Pennsylvania Ave
Glen Ellyn, IL 60137-4464
Phone: (630) 469-9200
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 036112627 (IL)

Record details

NPI number1831150036
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2006
Last updated in NPPESJanuary 27, 2011
Mailing address1860 Paysphere Cir, Chicago, IL 60674-0018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
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
Practice locations7 on file with Medicare

Other providers in Glen Ellyn