Our Staff

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Dr. Tracy Hill is a native to Wichita Falls. She grew up and graduated high school in Burkburnett, Texas. She and her husband, Mitchell, are busy raising their two girls, Abigail and Ava Grace.
Tracy graduated from the University of North Texas in 1995 with a BS in Biology and minor in Chemistry, she then did her graduate work at Baylor College of Dentistry in Dallas where she graduated with honors and earned her Doctorate of Dental Surgery (DDS).
Dr. Hill provides services in all aspects of dentistry, seeing children and adults alike. She has special interests in cosmetic dentistry and restoring dental implants. Dr. Hill has attended advanced restorative continuing education training since graduating from dental school. She has spoken to local community groups on the topics of esthetic dentistry. Dr. Hill’s favorite thing is watching her patients smile transformation!!
Dr. Hill is very active in her community.  She and her husband, Mitchell, lead the “newlywed” class in their local church.  She has been on many local boards, including CASA, Hospice, and the Board of Health.  She currently serves in fundraising campaigns for Faith Refuge for homeless women. She has been on mission trips to St. Kitts serving in the dental field to help the local people.
She has also served as past president of the 13t district dental society and is a member of the American Dental Association as well as the Texas Dental Association.
In her spare time, Dr. Hill enjoys running, playing tennis and any outdoor activities.  She has run 7 marathons including the New York City Marathon and numerous half marathons.  She also stays very busy as mom and wife to her 2 girls, Abigail and Ava Grace, and husband Mitchell.

Dr Hill has a passion for people and loves that she can care for them in her chosen field.


Originally from Burkburnett, Texas, Dr. Egloff joined the team in June of 2009.  Her education includes a BS in Biomedical Science from Texas A&M University and a Doctorate of Dental Surgery from the University of Texas Dental Branch at Houston.  Tonya received a full scholarship for both degrees from the Wichita Falls Community Foundation.

Dr. Egloff and her husband, Sean, have a two year old son, Ben.  They are currently expecting another child due September 2015.  The Egloffs are members of First Baptist Church and strive to be active in the community.  Tonya volunteers with Big Brothers Big Sisters, where she mentors her “Little” on a regular basis while Sean is a volunteer with the Texas State Guard.

Dr. Egloff’s favorite thing about dentistry is the opportunity to improve a person’s self-confidence, relieve pain, and alleviate the fears of patients who “hate going to the dentist.”


Morgen is a born & raised Texan, a graduate of Baylor University, and a 2009 graduate of the University of Texas Dental School at Houston. She spent 5 years as a US Navy dentist, where she met her husband, Adam, a pilot in the Marine Corps. They have two sons, Garrett (5), and Grant (16 months).

Morgen is a general dentist who loves working with people, and seeing patients gain confidence with a beautiful smile. She is thrilled to join the Cornerstone Dental team, and to make Wichita Falls her family’s permanent home.

PAULA – Hygiene Coordinator
Paula is the newest member of Cornerstone Dental. Her job is to help you, the patient, stay on track with regularly scheduled hygiene visits. Paula was born and raised in Wichita Falls. She has two children, Paige Hughes and Tyler Knecht. She also has 3 four-legged children LoRyder, Sadie, and Bob. Paula is a member of Texoma Cowboy Church. She loves spending time with family and friends.
AMY – Registered Dental Assistant
With over 27 years of experience as a registered dental assistant, Amy has been with Dr. Hill and Dr. Egloff for 11 years. She has 3 children. The oldest, Sarah lives with her husband Jody in Lubbock. Lainie and her fiance Michael live in Waurika, OK and her son Dewey is a junior at Rider High School. Amy makes our patients feel welcome by walking them through their restorative appointments. Her outgoing demeanor will make every visit a positive one. She is also know for her obsession with skulls/sugar skulls.
KELLY – Registered Dental Assistant
Kelly has worked in this office for over 25 years. She enjoys working for Dr. Hill and Dr. Egloff and meeting new patients as well as all of her “oldies but goodies.” She and her husband Keith have been married for 34 years and reside in Lakeside City, TX. Kelly has three beautiful daughters; Deidra, Megan, and Micah. She also has a son-in-law, Chad, two precious granddaughters Keily and Kambry, and an adorable grandson Maddox. She loves her monthly massages and pedicures. You might see her wearing lots of leopard as she loves anything animal print.
DENISE – Registered Dental Assistant
Denise, has been with our team since the fall of 2006 after moving back to Texas from Missouri. Making each and every patient feel comfortable and significant no matter their dental needs is important to Denise. She says it’s an added bonus if she can make them laugh or at least help to make their day better in some way. She is a proud graduate of Rider High School (Once a Raider Always a Raider!) and currently lives in Wichita Falls with her boyfriend Mike Jackson. She has a daughter Haigen graduating from Rider High School this year and a son Bowen who will be a Freshman at Petrolia High School. Like most of us, she likes hanging out with friends and family when not at work and feels fortunate to call her co-workers some of her closest friends. It’s just a blessing to go to work every day knowing this!
DIANE – Appointment Coordinator / Office Manager
Diane is one of the first smiles you will see when you come to our office. Her main goal is to make you feel welcome and comfortable while keeping the office running on schedule. She lives in Windthorst, TX, where she and her husband Butch own a dairy farm. They enjoy spending time with their 3 sons Kyle and his wife Nichole, Kevin and his wife Amber, and Tyler and his fiance Lauren. Diane loves spoiling her grandchildren, Jake, and the newest addition, twins Declan and Hazel. Diane attends many Texas Rangers games throughout the year and you will find her rooting for Texas A&M every Saturday in the Fall.
VICTORIA – Registered Dental Hygienist
Vicki is another valuable member of Cornerstone’s hygiene team. She is originally from San Francisco, CA. She moved to Texas to attend MSU where she received her B.S. in Dental Hygiene in 1995. She and her husband and their son, Shane live in Wichita Falls where her husband, Clint, is a high school teacher and coach. They love taking short trips in the RV when they get the chance.
STACIE – Registered Dental Hygienist
Stacie has been a member of our team since December 2006. She was born and raised in Wichita Falls. She is a graduate of Rider High School and Midwestern State University where she received her degree in Dental Hygiene. Stacie and her husband, Patrick, have two children Jaxon and Jentry. They enjoy spending time outdoors with family and friends. Stacie’s favorite thing about dental hygiene is the satisfaction she feels helping others achieve beautiful, healthy smiles.
LAUREN – Registered Dental Hygienist
Lauren has been a member of Dr. Hill and Dr. Egloff’s team since September 2007. She is a graduate of Holliday High School and Midwestern State University where she received her B.S. in Dental Hygiene. What Lauren enjoys most about dentistry is educating patients on how to achieve a beautiful, healthy smile. She and her huband, Trey, have one daughter, Carsyn. They enjoy being outside, working on their house, and spending time with family and friends.