Dr. John Peter Jerstad, MD

Dr. John Jerstad is an internal medicine and emergency medicine physician who has dedicated 38 years to patient 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's extensive experience spans nearly four decades of treating patients across multiple medical specialties. He is fluent in both English and Spanish, allowing him to serve a diverse patient population.

Dr. Jerstad practices at Brookings Health System and maintains affiliations with Avera Heart Hospital in Sioux Falls and Arlington Medical Center in Arlington, South Dakota. His clinical expertise includes treating tobacco use disorders and viral infections, as well as managing acute conditions that cause nausea and vomiting. He performs essential diagnostic procedures such as electrocardiograms to evaluate heart function and complete blood counts to assess overall health. His …emergency medicine background enables him to provide comprehensive urgent care when patients need immediate medical attention.