New Search 3327 Dewey Y. McWhirter, III MD (865) 859-7800 Languages Spoken: English, German Primary Office Address: Tranquility Sleep Specialists PLC 7557 Dannaher Drive Suite 240 Powell, TN 379383563 Phone: (865) 859-7800 Fax: (865) 859-7809 Recommend this Physician Get Directions Certifications AB Psychiatry & Neurology (Sleep Medicine) Areas of Interest Sleep Medicine (Internal)