Greg Larson , MD Family Medicine Dr. Greg Larson received his medical school training at the University of South Dakota in Vermillion. His internship was completed at Sioux Valley and McKennan in Sioux Falls and a residency in Family Practice was completed at Sioux Falls Family Practice Center. Dr. Larson is board certified by the American Board of Family Practice. Brown Clinic, P.L.L.P. 506 First Avenue Southeast Watertown, South Dakota 57201 (605) 886-8041 or 1-888-886-8482 « back to directory P:605.882.7000 | 877.917.PLHS (7547) | info@prairielakes.com 401 9th Ave. NW Watertown, SD 57201 Privacy Policy