Call 888-810-5995 to speak with a Methadone counselor. Who Answers? Methadone Doctors in Corvallis, Oregon Thomas Lissman, M.D. 3509 NW Samaritan Drive Corvallis, OR 97330 View Details → Karen Weisman, M.D. 2310 NW Kings Boulevard Corvallis, OR 97330 View Details → James Rushing, M.D. PO Box 2851 Corvallis, OR 97339 View Details → James Rushing, M.D. 2310 NW Kings Boulevard Corvallis, OR 97330 View Details → Daniel Sudakin, M.D. MPH 310 NW 5th Street Suite 107 Corvallis, OR 97330 View Details →