“Most states have programs that provide structured monitoring for physicians with substance use disorders (Substance Use Disorders (SUD)s). In recent years, the Massachusetts Medical Society’s Physician Health Services (PHS) program has used a similarly structured approach to monitor physicians with other mental and behavioral health (MBehavioral Health) problems. The objective of this study was to determine the outcomes of the PHS monitoring programs for Substance Use Disorders (SUD)s and MBehavioral Health problems, compare their overall success rates, and identify correlates of success.”