Call 888-810-5995 to speak with a Methadone counselor. Who Answers? Methadone Doctors in Gray, Tennessee Nicholas Smith, M.D. 124 Gray Station Road Suite 1 Gray, TN 37615 View Details → Jonathan Lewis, M.D. 124 Gray Station Road Suite 1 Gray, TN 37615 View Details → Bruce Boggs, M.D. 203 Gray Commons Circle Gray, TN 37615 View Details →