New Search 310180 Dewey Y. McWhirter, III MD Practice Started: 01/17/2008 Location Information Tranquility Sleep Specialists PLC 7557 Dannaher Drive, Suite 240 Powell, TN 379383563 865-859-7800 Fax:865-859-7809 Get Directions Certifications AB Psychiatry & Neurology (Sleep Medicine) Areas of Interest Sleep Medicine (Internal)