Brian O'Leary, MD

Internal Medicine

187 Ratings
Years in Practice: 35 years
Practices In: Aurora
Patients Seen: Adults

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.

Novem­ber is Lung Can­cer Aware­ness month. Lung can­cer is the lead­ing cause of can­cer-relat­ed death in the Unit­ed States. How­ev­er, when diag­nosed ear­ly with a low-dose CT scan, lung can­cer is more like­ly to be cur­able, with sur­vival rates jump­ing to near­ly 60 per­cent. Click here for more infor­ma­tion on who should be screened for lung cancer.

Board Certifications
Internal Medicine
Awards & Accolades
Chicago Magazine, Top Doctors 2022
Chicago Magazine, Top Doctors 2021
Chicago Magazine, Top Doctors 2017
Clinical Interests

Dia­betes, Hyper­ten­sion, Heart disease

American College of Physicians American Society of Internal Medicine American Medical Association
Advocate Good Samaritan Hospital
3815 Highland Avenue Downers Grove, Illinois 60515 630-275-2700 Get Directions
Edward Hospital
801 S. Washington St. Naperville, Illinois 60540 630-527-3000 Get Directions
Northwestern University Medical School Graduation Date: 1985 Degree: MD
Northwestern Memorial Hospital Resident in Internal Medicine
Northwestern Memorial Hospital Internal Medicine


Ratings Category

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.

Patient Satisfaction Rating

187 Ratings

Ease of scheduling appointments

184 Ratings

Provider showed concern

186 Ratings

Provider explained things clearly

185 Ratings

Provider included you in decisions

183 Ratings

Likelihood of recommending this provider

182 Ratings


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.
"They don't come any better than Dr. O'Leary!!!! Great doctor and great person."
Sep. 1, 2022
"Been his patient since 2017"
Aug. 29, 2022
"I would highly recommend any of our doctors to other people but not as long as they are in with Duly"
Aug. 19, 2022
"Very easy to talk to.Good bedside manners."
Aug. 4, 2022
Jul. 27, 2022
"Always receive the highest degree of attention and care."
Jul. 25, 2022
"Dr O'Leary is one of most informed, intelligent and caring physician you can find. Both his bedside manner and thorough understanding of the medical field is unparalleled. His attitude is so very positive that it is "infectious"."
Jul. 18, 2022
"I always have a very good experience with Dr. O'Leary. He explains everything in layman's term which I can understand. He is very very professional."
Jul. 6, 2022
"Dr. O'Leary is great. He is the best doctor, smart and experienced. He had the right diagnosis and treatment. My symptom is gone. I am very happy."
Jun. 30, 2022
"*Dr. O'Leary is amazing! His concern and consideration for this uniqueness of each patient and his attention to even minor details earns him a AAA+!"
Jun. 25, 2022
"Very extensive discusion"
Jun. 23, 2022
"Dr. O'leary is extremely interactive with his patients. He listens carefully and provides well thought out responses. He is positive and reassuring in planning for future follow-up."
Jun. 23, 2022
"*Dr. Oleary always takes the time to listen and answer my questions and address any concerns/issues I may have."
Jun. 17, 2022
"Dr O'Leary is the best! His staff at Springbrook are also outstanding, they all work very well together to ensure excellent patient care."
Jun. 10, 2022
"Dr O'Leary is an excellent diagnostician and takes time to explain things clearly even drawing a diagram if needed. Don't ever let him leave!"
Jun. 9, 2022
"Others need to see Dr O'Leary as a role model . He is compassionate, educational, and truly listens to the patient."
May. 26, 2022
"Dr. O'Leary is caring, compassionate, great dialoguer, open to input and bright!"
May. 4, 2022
"Absolutely love Dr. O'Leary. Couldn't ask for a better Dr"
May. 4, 2022
"I love my healthcare team."
May. 2, 2022
"Appreciated Dr O'Leary's experience and expertise in explaining proper medication dosage, keep up with her dietary, physical and mental health. Especially was very appreciative of his understanding and patience in dealing with our Mom's Health."
May. 2, 2022
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