Browse Health
Internist, Cardiologist (heart)
35 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. James Ostrenga:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. James Ostrenga is Good. Dr. Ostrenga has been reviewed by 9 patients who have provided 1 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 3.7
Courteous Staff 3.3
Accurate Diagnosis 3.7
Bedside Manner 3.3
Spends Time with Me 3.3
Follows Up After Visit 3.9

Specialties & Research

Dr. James Ostrenga, MD is board certified in Internal Medicine and Cardiovascular Disease.

  • He has special expertise in 6 areas:
  • Acute Coronary Syndrome (ACS)
  • Cardiac care and testing
  • Heart Block
  • High Blood Pressure (Hypertension)
  • High Cholesterol (Hypercholesterolemia)
  • Unstable Angina

Education & Awards

Dr. Ostrenga graduated from University of Illinois at Chicago.


Dr. Ostrenga has 6 hospital affiliations:

  • Macneal Memorial Hospital 
  • Advocate Good Samaritan Hospital 

> > > > Dr. James Ostrenga, MD

Similar doctors nearby

Dr. Rafi Ali

Internal Medicine
15 years experience
Naperville, IL

Dr. Marc Fallah

Internal Medicine
18 years experience
Naperville, IL

Dr. William Mourad

Internal Medicine
12 years experience
Naperville, IL

Dr. Katy Goldsborough

Internal Medicine
9 years experience
Naperville, IL

Dr. Mark Ottolin

Internal Medicine
32 years experience
Naperville, IL

Dr. Sharon Cline

Internal Medicine
16 years experience
Naperville, IL
Search All Similar Doctors
Additional Information
Dr. James Peter Ostrenga MD is a male Internist, has 35 years of experience and practices in Internal Medicine and Cardiovascular Disease.
Where does Dr. James P. Ostrenga practice?
Dr. James Ostrenga has 1 office location.
Dr. James Ostrenga practices Internal Medicine and Cardiovascular Disease near Naperville, IL.
See Naperville Internists and Naperville Cardiologists.