Connect Now Troy J. Caldwell, MD Family Practice Biography Contact Info: Office:  307-548-5201 Education: Undergraduate: Utah State University, Logan, UT MD: St. Louis University Medical School, St. Louis, MO Residency: Family Practice Residency: University of Wyoming Casper, Casper, WY Certification: Board Certified Family Practice: 1996 More/Other Information: Dr. Caldwell's special interests are Pediatrics and General Medicine. He joined the North Big Horn staff in 1999.