Our Locations

Certified Sleep Centers

Tranquility Sleep Specialists, PLC operates out of sleep centers certified by the American Academy of Sleep Medicine at the following locations.

Tennova Sleep Center North

North Knoxville Medical Center
7557 Dannaher Way Suite 240, Powell, TN 37849
865-859-7800 / fax 865-859-7809

Tennova Sleep Center West

Turkey Creek Medical Center
10800 Parkside Drive, Suite 202, Knoxville, TN 37934
865-218-7463 / fax 865-218-7275

AASM Accredited Facility Member H rgb

Administrative Office

(No patients seen here)
3232 Tazewell Pike, Knoxville TN 37918

Physician Referrals

Tranquility Sleep Specialists can provide your patients with expert care for all their sleep problems. Dr. Dewey McWhirter is board certified in Sleep Medicine. He sees patients as young as three years.

Our Contacts


7557 Dannaher Way Suite 240
Powell, TN 37849


10800 Parkside Drive, Suite 202
Knoxville, TN 37934

Open Hours

Monday - 8:30AM - 4:30PM
Tuesday - 8:30AM - 4:30PM
Wednesday - 8:30AM - 4:30PM
Thursday - 8:30AM - 4:30PM
Friday - 8:30AM - 4:30PM
Saturday - Closed
Sunday - Closed

Welcome to Tranquility Sleep Specialists

Now Offering:


7557 Dannaher Way Suite 240
Powell, TN 37849


10800 Parkside Drive, Suite 202
Knoxville, TN 37934

Dewey McWhirter, MD

Sleep Medicine has been Dr. McWhirter's passion for decades. He became interested in sleep medicine while dealing with his own sleep problems in high school and college. He earned degrees in English, Biochemistry, and Chemistry from Bowdoin College and the College of Charleston. He focused on sleep medicine in medical school at the Medical University of South Carolina and during his residency in Neurology at Emory University. During a Sleep Medicine fellowship at the Cleveland Clinic, he trained under some of the world's leading experts in the field of sleep medicine. Dr. McWhirter is board certified in Sleep Medicine. He has been treating patients with sleep disorders in east Tennessee since 2007. He is interested in all areas of sleep medicine but he has a special interest in narcolepsy and delayed sleep phase syndrome. Dr. Dewey McWhirter is board certified in neurology & sleep medicine by the American Board of Psychology and Neurology.

Valerie Inman, MSN FNP-C

Valerie was born and raised in Knoxville, TN. She completed her bachelor's degree in May of 2015 at The University of TN and received her master's degree of nursing with FNP concentration in May of 2023 at Lincoln Memorial University.

Prior to joining TSS, Valerie served in the United States Navy as a Registered Nurse. Her vast experience in many specialties areas has enabled her to quickly learn and implement diagnosing and treating sleep disorders.

Valerie is an avid TN Football fan and is a VOL for life!  She has two dogs, Rocky and Titan and a cat, Gizmo.  She enjoys hiking with her family and reading.  She is happily married and has one son and a daughter on the way.

We are proud and excited to have her on the team!


Jenna Peters, MPA, FNP-C

Jenna Peters, FNP-C, is a dedicated advocate for advancing patient well-being, bringing a wealth of expertise to the healthcare field. Holding a Master of Public Administration from Barry University and a Master of Science in Nursing as a Family Nurse Practitioner-Certified (FNP-C) from Walden University, Jenna's commitment to excellence is reflected in her graduation with honors.

Jenna is committed to providing individualized patient care to with compassion and understanding. Her proficiency extends to seamless knowledge in family medicine as she takes an integrated approach to sleep medicine. With a focus on high-quality patient care, Jenna is a highly skilled provider of Tranquility Sleep Specialists eager to serve all patients.

As a proud member of the National Society of Leadership and Success and the American Academy of Nurse Practitioners, Jenna stands at the forefront of nursing leadership and patient centered care.

We are thrilled to have Jenna join our team!

Michelle's Bio here