Dr. Gassner graduated from University of Wisconsin School of Medicine & Public Health in 1980 and has been in practice for 38 years. He currently practices at Sheboygan Orthopaedic Associates and is affiliated with St Nicholas Hospital. Dr. Gassner accepts multiple insurance plans including TRICARE, Network Health Plan and Common Ground. Dr. Gassner also practices at Prevea Sheboygan Orthopedic in Sheboygan, WI.