The average patient rating for Dr. Mertz is 4.0 stars out of 5. He has indicated that his clinical interests include holistic medicine and bloodless medicine/transfusion-free surgery. He is affiliated with St. John Hospital and Medical Center (Detroit, MI), St. John Macomb-Oakland Hospital, and Henry Ford Health System. Blue Cross/Blue Shield, Coventry, and Viant are among the insurance carriers that Dr. Mertz takes. He attended medical school at Wayne State University School of Medicine. Dr. Mertz's training includes residency programs at Hospital of the University of Pennsylvania, Henry Ford Hospital, and a hospital affiliated with Wayne State University.