Dr. John William Kreit, MD

Dr. John Kreit is a pulmonologist and critical care medicine specialist with 45 years of experience treating complex lung and breathing disorders. He earned his medical degree from Duke University School of Medicine and completed his residency at the University of Michigan Health System. His extensive background in both pulmonology and critical care medicine allows him to provide comprehensive treatment for patients with serious respiratory conditions requiring specialized attention.

Dr. Kreit practices across multiple UPMC locations throughout Pittsburgh, Pennsylvania, including UPMC Presbyterian, UPMC Mercy, and UPMC Shadyside. He specializes in treating sleep disorders, particularly obstructive sleep apnea in both adults and children. His expertise includes performing detailed pulmonary function testing and bronchodilator reversibility testing to evaluate lung capacity and breathing function. Dr. Kreit also conducts specialized asthma challenge tests to help diagnose and manage …complex breathing conditions.