Physician Specialists in Anesthesia, P.C. (PSA) is an organization dedicated to providing quality anesthesiology, acute pain management, critical care, and perioperative services to the Atlanta community. One of the premier anesthesiology practices in Georgia, PSA consists of over 80 employees, including 21 staff anesthesiologists and over 50 physician assistants and nurse anesthetists who deliver care to 27,000 patients annually in the Atlanta area.