I knew Mark when he was a Resident at UC-Davis. He was knowledgeable enough about OB/GYN, but rather aloof to the Nursing staff.Didn’t have the greatest bedside manner though. Nice enough guy, but sadly, he sure didn’t age well. (As I recall, he enjoyed camping, but the other Nurses said his wife refused to go anywhere she couldn’t plug in her hair dryer) He was rather vain. I guess Karma IS “a b*%ch”-

Submitted July 12, 2022

He has been an outstanding doctor to me for over 8 years. Extremely professional and caring in every way. Dr. Rettenmaier saved my life.

Submitted Aug. 6, 2015

He is the most remarkable doctor and surgeon. He is an extremely caring and responsive doctor. He saved my life and hundreds of other patients. It has been an absolute blessing to know him.

Submitted June 28, 2015

This man saved my life. Wonderful Dr. Helped me thru a very difficult time in our lives. Thank you Dr Rettenmaier.

Submitted May 6, 2015

He has been the best doctor we have ever had and his results are remarkable. His staff is professional and you are always treated quickly and thoroughly. We love him in every way.

Submitted Jan. 31, 2015

Please don't judge anyone until all the facts are in

Submitted Jan. 11, 2015

Great and knowledgeable physician. He is experienced, which patients will appreciate. He doesn't seem to overtreat either.

Submitted Nov. 18, 2014

I am confident he knows his stuff. He is a great surgeon an knows what he knows. I agree he is not interested in after care or discussions regarding side effects after. I find he is a little impersonal, pretty much a 5 minute follow up appt.Not the kind of dr that you feel that patient doctor connection to. Seems rushed. His nurses are Excellent!I do like that you can email him and he always responds.

Submitted July 19, 2014

Dr. Rettenmaier has been very informative before, during and after all of my treatment. He always takes the time to explain everything in detail. My family and I feel very blessed to have him as my doctor. I feel confident that I am getting the best care from him and his staff.

Submitted July 12, 2014

Dr. Rettenmaier is a competent surgeon, but he has no interest in before and after care. Very brusk and hurried. Makes one feel one is on an assembly line.

Submitted April 17, 2013