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

Patrick O'Leary, MD

Individual provider Cardiovascular Disease Physician · NPI 1942278890

Patrick O'Leary, MD is a Cardiovascular Disease (Cardiology) in Winfield, Illinois. Graduated from R Franklin University of Med & SCI/Chicago Medical School in 1988, 38 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
38
Trained at
R Franklin University of Med & SCI/Chicago Medical School
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

25 N Winfield Rd Ste 300
Winfield, IL 60190
Phone: (630) 933-8100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 036081566 (IL)

Record details

NPI number1942278890
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 8, 2006
Last updated in NPPESJune 17, 2022
Certification dateJune 17, 2022
Mailing address1860 Paysphere Cir, Chicago, IL 60674-0018

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolR FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL
Graduated 1988 (38 years in practice)
Group practice Dupage Medical Group Ltd — 1328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Winfield