In addition to English, he speaks German. He is affiliated with Aurora St. Luke's South Shore, Aurora St. Luke's Medical Center, and Aurora West Allis Medical Center. Dr. Grieshop attended the University of Wisconsin School of Medicine and Public Health and then went on to complete his residency at a hospital affiliated with Indiana University. Dr. Grieshop's patients gave him an average rating of 2.0 out of 5 stars. He is in-network for several insurance carriers, including Humana HMO, Humana Bronze, and Humana Catastrophic.