A withdrawal management service is one that: May be provided at one or more of the following ASAM levels: Level 1-WM, ambulatory withdrawal management without extended on-site monitoring; Level 2-WM, ambulatory withdrawal management with extended on-site monitoring; Level 3.2-WM, clinically-managed residential withdrawal management; or Level 3.7-WM, medically-monitored residential withdrawal management; Monitors the decreasing amount of psychoactive substances in the body; Manages the withdrawal symptoms; Motivates the individual to participate in appropriate treatment programs for alcohol or other drug dependence; Provides additional referrals as necessary; and At Level I-WM, Level 2-WM, and Level 3.7-WM, employs a physician, nurse practitioner, or physician assistant who: Obtains a comprehensive medical history and physical examination of the patient at admission; and Medically monitors each patient.