Dr. Karl Brenner, MD
Internal Medicine
4200 Whitehall Dr, Suite 130
Ann Arbor, MI 48105 Directions
4.8 out of 5
527 verified ratings
527 Ratings, 179 Comments
The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy.
Sep 15, 2026
He tried to leave the appointment w/o addressing my ear infection concern and never put it in the visit that he looked at them and when I got home and used the camera on my own ear you can clearly see I have an ear infection & told me IF there was anything happening the antibiotics I am taking for something else would probably clear it up. It was the second time I had been to see someone about the burns on my side and my really bad reaction to adhesives. He did nothing except gave me antibiotics and told me to use over the counter steroid which I stated I had already been using and it wasn't helping. I had severe reactions to the adhesives and I was SUPER itchy!! I spent $40 in copay between him and an urgent care a couple days prior and both did NOTHING for me. I even ended up with a bad sinus and probably ear infection over the weekend because he did nothing with my ear and didn't ask questions. Because Dana and Morgan don't have appointments any time soon I do not want to come back to the office because I have ZERO faith another provider will help me.
Sep 3, 2026
Good man!
Sep 3, 2026
Listens carefully and uses the information he is given to guide him in his recommendations.
Aug 31, 2026
They are respectful and listen to my observations and respond appropriately, I have high confidence in Dr. Brenner and his PA.
Aug 10, 2026
Dr. Karl Brenner is very caring. He listens to my concerns and is easy to talk to about my care.
Aug 3, 2026
very helpful and ways to get better
Jul 27, 2026
Very happy with my physician.
Jul 7, 2026
Results from my visit are positive. Thank you Dr. Brenner.
Jul 6, 2026
Wasn’t able to get in for appt. Booked solid. Went to urgent care. Not better. Was able to get in the morning I called. But husband had to wait til afternoon. It’s been incredibly busy
Jun 30, 2026
Dr Brenner is very knowledgeable and cares about his patients!
Jun 30, 2026
DR Brenner listened to me carefully. He gave appropriate feedback and adjusted my medicine. This was done in a kind and professional manner.
Jun 29, 2026
Thank you
Jun 25, 2026
Looking forward to seeing him another 3 weeks.
Jun 25, 2026
Dr Brenner was awesome!!!
Jun 24, 2026
Very good doctor
Jun 17, 2026
Dr
Brenner is cool. 😎
Jun 16, 2026
He always treats me with good care.
May 20, 2026
it is always a pleasure to meet with him
May 20, 2026
just keep doing what you been doing
May 5, 2026
Thoughtful, caring, clear, and competent.
Apr 30, 2026
wonderful doctor
Apr 21, 2026
This was the first time I saw Dr. Brenner. He was very nice, professional, listened to my concerns, discussed treatment options.
Apr 21, 2026
Caring physician
Apr 21, 2026
Dr.Brenner is very open and honest with me.
Apr 9, 2026
Listened to my complaints and diagnosed my problem. Dr Brenner personally called me the following morning with more information.
Apr 8, 2026
Very compassionate, listened with concern and was very knowledgeable.
Mar 26, 2026
I generally see Dr. Moore but she had no near term openings. Dr. Brenner was able to see me the day I called. I believe I (or perhaps my late wife) have been treated by him sometime in the past. In any case, his manner is pleasant. He speaks with authority and explains the circumstances succinctly but in terms a non-medical person can understand. Although he wirks with dispatch, the visit did not seem rushed and I felt I had all my concerns addressed during the visit.
Mar 25, 2026
Dr. Brenner is a true professional, listens well, provides great solutions and is so good at his job.
Mar 23, 2026
Excellent physician. Highly recommend.
Mar 20, 2026
Dr. Brenner is very attentive to your problems and very proffesional.
Mar 19, 2026
Tends to focus more on laptop than me as the patient. My impression of the annual physical was he did not spend much time physically checking me. Pressed on my neck, used stethoscope to listen to lungs and heart, and looked in mouth and nose, but not much else. No stress test.
Mar 19, 2026
Very knowledgeable, patient, and kind. Explains medical conditions clearly and provides thoughtful, effective recommendations and treatment options.
Mar 16, 2026
Thank you
Mar 12, 2026
dr brenner is very proffesional and atentive to your concerns.
Mar 11, 2026
Very professional and thorough. Calm and friendly.
Mar 11, 2026
If my current primary doctor moved away or retired I would be comfortable becoming one of his patients
Mar 9, 2026
I feel very fortunate to have Dr. Brenner as my physician. He's always been right with diagnoses and really has made a positive difference in my health.
Mar 2, 2026
Excellent doctor
Mar 2, 2026
Good visit. Very focused.
Mar 2, 2026
He has always seen I got the help I needed.
Mar 2, 2026
Good man who understands the nuances to serving older men
Mar 2, 2026
I've been a patient of Doctor Brenner for many years. I know he saved my life and keeps me going in the right direction
Feb 18, 2026
I am grateful for the referral to ortho !
Feb 17, 2026
Listens well, offers good options for care, knowledgable, courteous and friendly.
Feb 13, 2026
Excellent general practioner.
Feb 12, 2026
I think he is a good general practioner.
Feb 5, 2026
Always seems to be rushed.
Feb 2, 2026
My questions and concerns were answered. Very professional.
Feb 2, 2026
In addition, Dr. Brenner's recommendations and prescriptions continue to be very effective.
Jan 28, 2026
Dr. Brenner spent more time than usual going over things. I felt heard.