Dr. John Peter Jerstad, MD

Dr. John Jerstad is an internal medicine and emergency medicine physician with 38 years of experience providing comprehensive medical care. He earned his medical degree from the Sanford School of Medicine of the University of South Dakota and completed his residency training through the U.S. Department of Veterans Affairs. Dr. Jerstad is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Jerstad practices at multiple locations including Brookings Health System in Brookings, South Dakota, along with Avera Heart Hospital in Sioux Falls and Arlington Medical Center in Arlington. His clinical expertise spans emergency care situations and routine internal medicine needs. He treats conditions such as tobacco use disorder and viral infections, while also managing acute symptoms like nausea and vomiting. His procedural skills include performing electrocardiograms and ordering complete blood count tests to help diagnose and monitor patient health.