Dr. Brian O'Leary approaches complex health issues with a simple, yet brilliant, solution. By bringing all the clinical expertise, support and resources you need to improve your health under one roof at our Naperville clinic, adults 65 years of age and up have access to all the resources and support you need to lead a healthier, happier life.
Internal Medicine
English
Diabetes, Hypertension, Heart disease
American College of Physicians
American Society of Internal Medicine
American Medical Association
Castle Connolly 2026 Top Doctor
2026
Castle Connolly 2025 Top Doctor
2025
Chicago Magazine, Top Doctors
2022
Chicago Magazine, Top Doctors
2021
Chicago Magazine, Top Doctors
2017
Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.
Dr O'Leary is a wonderful doctor.
Very personable and capable who takes his time explaining your problems and the treatment to address the problems. Excellent physician
Dr O'Leary are very professional and caring. They take the time to listen and evaluate my concerns
Dr. O'Leary is the BEST that Duly has. My only wish is that he was younger.
Dr Brian O'Leary is an excellent physician, very knowledgeable and very honest. I have been with him for 25-30 years and would never dream of switching physicians.
The Patient Satisfaction Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.
Patients Seen: Ages 65+
Practices In: Aurora