Call 888-810-5995 to speak with a Methadone counselor. Who Answers? Methadone Doctors in Greeneville, Tennessee Tony Yost, M.D. 184 Tamara Lane Greeneville, TN 37743 View Details → Robert Locklear, M.D. 895 East Andrew Johnson Highway Greeneville, TN 37745 View Details → Robert Locklear, M.D. 1021 Coolidge Street Suite 3 Greeneville, TN 37743 View Details → Elliott Smith, Jr. 1406 Tusculum Boulevard Suite 2003 Greeneville, TN 37745 View Details →