Mary M. Johnson, M.D.
Oaklawn Medical Group-Inpatient Specialist 200 North Madison Marshall, MI 49068 (269) 789-8227

Dr. Mary M. Johnson earned both her bachelors's and medical degrees from the University of Michigan. She completed her residency in internal medicine at Rush-Presbyterian St. Luke's Medical Center in Chicago, Illinois. Dr. Johnson has served on the University of Michigan faculty in the Department of Internal Medicine. She is board certified in internal medicine. Dr. Johnson joined Oaklawn's active medical staff in December 2008.

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