Meet Our Team at Mart Veterinary Clinic

The team at Mart Veterinary Clinic has been caring for pets and livestock in Mart, Texas and the surrounding area for decades. Get to know the people — and patient advocates — behind our care below.

Misty Colunga
Misty Colunga, Office Manager at Mart Veterinary Clinic

Misty has worked for Dr. Range since her junior year in high school. She has moved up over the years to now be the Office Manager/Head Technician. Misty attended Marlin Schools and graduated in 1996. She obtained an Associate’s degree from McLennan Community College in Waco in 2006 in Applied Sciences. She has two young daughters and currently resides in Marlin.


Gwynn Range
Gwynn Range at Mart Veterinary Clinic

Gwynn was Dr. Range’s mother and had been an integral part of his journey since the establishment of Mart Veterinary Clinic in 1978. After her recent retirement from full-time work at Companion Animal Clinic in Marlin, she continued to offer support on Tuesdays and Thursdays, remaining an essential presence alongside her son.

We are forever grateful for her immense impact and extend our heartfelt thanks for her years of dedication and service.


Our Patient Advocates
Patient advocate pets at Mart Veterinary Clinic

From left to right “Tail”, “Mama Dog”, “Juan”, and “Sugar” all watch over the patients when they are hospitalized, recovering from anesthesia, or just visiting. They seem to never meet a stranger of the human persuasion either, and are loved by all clients.

Want to meet our team and see our hospital in person? Take a look at our hospital tour, learn more about our veterinarian, or call us at (254) 876-2552 to schedule a visit.

Frequently Asked Questions About Our Team

Who runs Mart Veterinary Clinic?

Mart Veterinary Clinic is led by Dr. Mark S. Range, supported by a team of experienced staff including Office Manager Misty Colunga.

How long has Misty Colunga worked at the clinic?

Misty has worked at Mart Veterinary Clinic since her junior year of high school and has grown into the role of Office Manager and Head Technician.

Does the clinic have any resident animals?

Yes. Our patient advocates — “Tail,” “Mama Dog,” “Juan,” and “Sugar” — are beloved fixtures around the clinic who keep an eye on our patients.

How long has Mart Veterinary Clinic been in business?

Mart Veterinary Clinic was established in 1978 and has been serving the Mart, Texas community for decades.

Can I meet the team before scheduling an appointment?

Yes, feel free to call us at (254) 876-2552 with any questions, or take our hospital tour to see our facility and meet the people who will be caring for your pet.