Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Eileen Pentony, MD

Individual provider Internal Medicine Physician · NPI 1659437457

Eileen Pentony, MD practises Internal Medicine in Downers Grove, Illinois. Graduated from University of Texas Medical Branch at Galveston in 1997, 29 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
29
Trained at
University of Texas Medical Branch at Galveston
Licensed in
IL
In the registry since
2006
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

5207 Main St
Downers Grove, IL 60515-4652
Phone: (630) 435-9888
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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 036107986 (IL)

Record details

NPI number1659437457
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 28, 2006
Last updated in NPPESAugust 17, 2023
Certification dateAugust 17, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 1997 (29 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

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients447
Services billed 5,260 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Advocate Good Samaritan Hospital Hospital · Downers Grove, IL
  • Edward Hospital Hospital · Naperville, IL
  • Rush University Medical Center Hospital · Chicago, IL
  • Residential Home Health Home health agency · Lisle, IL · listed as Residential Home Health Illinois, LLC
  • Northwestern Medicine Central Dupage Hospital Hospital · Winfield, IL
  • Uchicago Medicine Adventhealth Hinsdale Hospital · Hinsdale, IL
  • Advocate Home Health Care Serv Home health agency · Oakbrook, IL
  • Astra Health Home health agency · Harwood Heights, IL

Colleagues at Dupage Medical Group Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1328 clinicians in the practice; 12 are shown here.

Other providers in Downers Grove