Dr. Mark S. O'Brien has been practicing medicine for 34 years. Dr. O'Brien graduated from the Wayne State University School of Medicine in 1980. He practices medicine in Grand Rapids, MI and specializes in Internal Medicine and Nephrology. Dr. O'Brien is affiliated with Spectrum Health Hospital Group, Spectrum Health United Hospital and Spectrum Health Blodgett Campus.
Years in Practice: 34 Years
Languages Spoken: English
Medical School: Wayne State University School of Medicine
Graduation Date: 1980
Specialties: Internal Medicine, Nephrology