Dr. Erk is board certified by the American Board of Internal Medicine and is a fellow in the American College of Physicians.

He earned his medical degree from the University of South Dakota School of Medicine in Vermillion and completed a residency in internal medicine at Geisinger Medical Center in Danville, Pa.

He joined Wyoming Medical Center in 1994 and has served as chairman of the hospital’s Department of Medicine. He practices at Sage Primary Care.