John Brennan, MD - Nephrology - Wheaton Franciscan Healthcare

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Patient Rating
4.8 / 5 (Based on 70 Reviews) Read Patient Comments

John Brennan, MD

Specialties: Nephrology

262-687-8340

Accepting new patients.

Locations

Clinical Interests

  • High Blood Pressure/Hypertension
  • Diabetes Management and Prevention

Languages

  • English

Affiliations

  • All Saints

Education

  • Medical School
    1991 University of Health Sciences-Chicago Medical School, Illinois
  • Residency
    1995 Loyola University Medical Center, Maywood, Illinois
  • Fellowship
    1996 Edward Hines Jr VA Hospital, Hines, Illinois

Certifications

  • Internal Medicine
  • Nephrology

Patient Reviews

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5
February 27, 2017
Dr. Brennen was referred to me because of a potential potassium retention problem. He explained things very well, and, if I had this or a related problem in the future I would request for him to be my doctor.
5
February 24, 2017
He is an awesome doctor and provider.He has been a part of my life for years. I appreciate him throughly.Thank you so much Dr. Brennan.
5
February 02, 2017
Visits with Dr. Brennan are always excellent and helpful.
5
December 26, 2016
I like the way Dr Brennan discusses my health issues with me. He listens and respects my input.
4.9
December 20, 2016
good
5
November 26, 2016
excellent doctor!
5
November 21, 2016
Dr. Brennan has been my internist for several years; & I have no complaints re his care.
5
September 26, 2016
Dr. John Brennan has been our Physician for a very long time, and we appreciate him very much........
5
August 24, 2016
Great ex[erience!
5
August 22, 2016
have had problems in prior years with coding for Medicare wellness check up which has meant hours on the photo ne and undeserved bills.
5
July 23, 2016
again, john Brennan is amazing. if I asked your flaws and it was only one Id be impressed.
2.8
April 14, 2016
I'm unsure why I need to continue appointments other than to prevent Dr. from getting "dinged". Test results prompting original visit were borderline high. Further treatment precausionary only. Latest test results solidly in normal range. Dr took cellphone call during visit. Listening to lungs at end of visit was "drive-by" at best.
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