According to our records, this business is located at 875 Walden Ln. in Lake Forest (in Lake County), Illinois 60045, the location GPS coordinates are: 42.233051 (latitude), -87.825729 (longitude). Mary C Mason MD PC is categorized under Clinics (SIC code 8011). Known organization principal is Mary Mason. You can contact the company by phone at (847) 680-4660.