Highland Lakes Dental

If you are looking for a caring, qualified dentist in Marble Falls, then look no further. From your first contact with our office, you will notice that Highland Lakes Dental is not your typical dentistry. We've worked hard to build an exceptional team of dedicated, caring and experienced professionals committed to the dental health of you and your family.

At Highland Lakes Dental, your comfort and confidence are just as important as your teeth. That's why we take great care of both the smile and the person behind it. Our mission is to provide the highest quality dentistry and patient care available from a dentist in Marble Falls. We offer a full range of treatment options that can be personalized to meet your unique needs and expectations.

To learn more, check out the rest of our website for helpful practice information, including dentist bios, service details, patient education resources and directions to our Marble Falls office. We want your first visit to be more about getting to know you and less about paperwork, so we recommend printing the new patient forms and completing them in advance of your initial appointment.

Our services include:

We always welcome new patients of every age. Whether you are new to Marble Falls or seeking an improved dental experience, we invite you to call our office for additional information.

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Meet our Staff

  • Margaret Cowling, DDS

    Dr. Margaret Cowling is originally born and raised in San Antonio, Texas. She went to UTSA and UTHSCSA for her undergrad and graduate studies of dentistry. She lived in Houston for two years as a public health provider for the National Health Service Corps in a federally qualified health center providing dentistry for underserved dental populations. After JT and Margaret got married they moved to Abilene, Texas so JT could serve his time in the Air Force. Abilene has a special place in Margaret's heart as that's where two babies were born: Conner, 4 and Zoey 2.  They welcomed the newest addition to their family November of 2017 to a beautiful baby boy named Zayne. Margaret likes to go on walks and play with her kids. Anything related to water and animals is a great time for the family.

  • Jefferson Cowling, DDS

    Dr. JT Cowling hails from Sulphur Springs, Texas where he was born and raised. JT graduated with a bachelor's in Biology from Texas A&M Commerce. Then he completed his Doctorate in Dental Surgery from UT Health Science Center in San Antonio. It was in San Antonio that JT was lucky enough to have met Margaret. After a lot of persuading, Margaret agreed to marry JT. He was one of the few applicants to get accepted into the Air Force Dental Corps. JT served all four years at Dyess Air Force Base in Abilene, Texas. JT and Margaret have three children, Conner who is 4, Zoey who is 2, and Zayne who is 8 months old. The Cowling's are proud to be part of this community and are excited to meet you!

  • Matthew Smith, DDS

    Dr. Matthew Smith was born in Burlington, North Carolina and moved frequently as a child. He attended Washington and Lee University in Lexington, Virginia and attended the University of Texas Health Science Center at San Antonio for his D.D.S. After graduation, Dr. Smith commissioned in the U.S. Navy as a Lieutenant. He completed a General Practice Residency program at Naval Medical Center Portsmouth, VA. After residency, Dr. Smith was sent to Manama, Bahrain. On returning to the U.S., Dr. Smith was stationed at the Washington Navy Yard in Washington, D.C. He is looking forward to serving the needs of Highland Lakes Dental patients.

  • Shannon Coulson

    Shannon Coulson is originally from Memphis, Tennessee. She moved to Texas after marrying her husband, Drew 12 years ago. She attended the Dental Hygiene Program at Temple Community College after her husband graduated the RN program. She has been a Registered Hygienist for 4 years. Marble Falls is the perfect place for them to raise their three busy boys. She is also a member of Lakeshores Church and cannot wait to serve your family!

  • Melissa Harris
    Front Desk

    Melissa has loved living in Marble Falls since 2015. She has experience in guest hospitality and relations and likes to provide a positive experience for the people she meets. Her interests include surviving her family of five, upcycling, art, and patroning restaurants based on the quality of their salsa.


What Our Clients Say About Us

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Office Hours

Our Regular Schedule

Highland Lakes Dental


8:30 am-5:00 pm


8:30 am-5:00 pm


8:30 am-5:00 pm


8:30 am-5:00 pm