Based in St. Louis, Dr. Phillip Jeffery Greene is an experienced medical doctor. In 2009, Dr. Phillip Jeffery Greene joined Alton Forensic Psychiatric Hospital as a physician. He attended to the primary care needs of court-remanded patients.

Subsequently, between 2014 and 2020, Dr. Greene served as a physician at Clinical Medical Services, handling patient hospital and clinical care. In 2016, Dr. Phillip Jeffery Greene became a hospitalist at South City Hospital and attended to the healthcare needs of non-psychiatric and psychiatric patients. He earned Physician of the Month honors three times in four years for his efforts.