Dr. Petrinitz is a native of Detroit, Michigan, and graduated from the University of Michigan.
He received his medical degree from the Dr. William Scholl College of Podiatric Medicine in Chicago. Dr. Petrinitz completed his residency training at Milton Community Hospital in River Rouge, Michigan.
He is certified in foot surgery by the American Board of Podiatric Surgery and the American Board of Podiatric Orthopedics. Dr. Petrinitz has been in private practice since 1986.