Your Nashville Dentist Team

The mantra of the team at Advanced Dental Health Center is to live by the “Golden Rule.” And, we’ve been doing this for over 20 years. Please take a few minutes to learn more about our skilled and patient-focused staff.

Our patients are the BEST at telling our story. Check out why our patients rate us 5 out of 5 in almost every patient review!

Dr. Clayton C. Cummings, DDS

Through Advanced Dental Health Center, Dr. Cummings has created an anxiety-free environment for his patients. With over 850 hours of continued education, his advanced skill-set calms nerves about the dreaded dentist visit. Dr. Cummings also has advanced training and skill in geriatric dental care.

After graduating with his Bachelors of Science from Louisiana Tech University, Dr. Cummings received his DDS from The University of Tennessee College of Dentistry. He has continued to learn through his involvement in the Nashville dental community. Dr. Cummings is a proud member of the American Dental Association, the Academy of Cosmetic Dentistry, the Tennessee Dental Association, the Nashville Dental Society and Volunteer Study Club

Dr. Cummings puts his patients' feelings first. Whether you are looking for a reliable dentist, for confidence in your smile, or simply for ease in the appointment chair, Dr. Cummings strives to relieve any reservations patients may have. For these reasons, Dr. Cummings has always made a special effort to keep up with the very latest in dental techniques and technologies.

Dr. Cummings was born in Baton Rouge, LA but spent most of his childhood years in Arkansas and Louisiana. He is married to Lisa and has two grown daughters, Lauren and Lindsey. Much like his all time favorite TV show’s hit character, Andy Griffith, Dr. Cummings is the “real deal.” He is what you see is what you get… a down to earth, honest and really smart guy, caring most about taking great care of his patients everyday!

Heather Messick, RDA

Scheduling Coordinator

Heather is our scheduling coordinator and usually the first person you will speak with at Advanced Dental Health Center. She efficiently manages the front desk along with the clinical and hygiene schedules. With 16 years of Dental Assisting experience, she enjoys answering patient’s questions and assisting in their treatment decision process.

Born and raised in Manasquan, NJ, Heather spends much of her time enjoying the outdoors and raising two sweet pups. It is no surprise that one of Heather’s favorite TV shows is the classic Little House on the Prairie because Heather could fit perfectly into the show’s cast. She is good as gold and is always taking care of the ADHC family which of course includes our very happy patients!

Heather has been with us for 16 years.

Crystal Rigsby, RDH

Dental Hygienist

Crystal graduated from Tennessee State University in 2009 with an Associates of Science degree in Dental Hygiene. She brings a great “can do” attitude to work every day. Eager to provide excellent service, our patients frequently comment that Crystal is “very thorough” and “so comforting.”

Crystal, a Nashville native, loves kids and is really looking forward to starting a family of her own with husband, Jesse. Until then, her two year old niece keeps her super busy on weekends.

Like her fellow teammates, Crystal also appreciates the comfortable work environment at ADHC. To her, ADHC is “like home” which is definitely a great feeling to have every day at work!

Crystal has been with us for 3 years.

Kim Sitler, RDH, BA, BS

Dental Hygienist

Kim received a Bachelors of Arts degree in Psychology in 1993 and her Bachelors of Science degree in Dental Hygiene in 1996 from Western Kentucky University. While in hygiene school, Kim was chosen by the Kentucky Dental Hygiene Association to serve as a student delegate to the American Dental Hygiene Association in Chicago. She has also had case study work published in the Journal of Dental Hygiene and holds licenses in both Tennessee and Kentucky (retired).

Kim and Dr. Cummings go way back, working together now for over 16 years. Kim’s patients are like family members to her. What we hear most from patients about Kim are comments like “she really cares about her work and has such a gentle touch;” “she is so knowledgeable and fun too;” and “she is awesome!”

Kim is a Nashville native. She has been married to Eric for 14 years and they have two children, Gregory and Reilly. Huge sports fans, they can almost always be found watching or participating in some kind of sporting event.

Kim has been with us for 16 years.

Varsha Gocool, R.D.A.

Dental Assistant

Varsha grew up in Fort Lauderdale, FL and moved to Nashville in 2005.  In 2006 she attended Nashville State Technical Institute and earned her Registered Dental Assisting license.

Varsha takes great pride listening to each patient's individual needs and then helping them to acheive their desired results with compassion. She understands that coming to the dentist is not easy for everyone, however she truely believes she can help patients to overcome their concerns so they can enjoy a beautiful healthy smile.

When Varsha is not at the office she loves spending time with her husband Bryan, their son Boone and their Irish Wolfhound/Great Dane Arizona Slim. They enjoy being outdoors, especially hiking, gardening and visiting the beach.

Varsha has been with us since August 2013.