Our Team

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Meet our Veterinary Team

At Animal Clinic at Mission Square, we treat you and your pets like our family. Get to know our awesome team below!

Dr. Tammy Doan, DVM

Veterinarian

Dr. Doan's Bio
Dr. Tammy R. Doan is a native Midlander born and raised. She graduated from Midland Lee Rebels in the mid-1990s. Dr. Doan attended Texas A&M University immediately after graduation, seeking her Bachelor of Science in biomedical science. Fortunately, she received early admission to Texas A&M’s College of Veterinary Medicine in 1997. Dr. Doan then received her Doctorate of Veterinary Medicine in 2001. After that, she returned to West Texas and has been serving West Texans with small animal medicine and surgery for 20 years. Her main interest is primarily medicine, specifically dermatology and cytology.

Dr. Doan just celebrated her 25th wedding anniversary with her husband, Billy, and they have three strong-willed children (she is paying for her own raising!) Her family currently has two spoiled fur babies named Winston (pictured here) and Trixie (14-year-old mare). Over the years, they have had quite a wide variety of pets, including cats, hamsters, mice, and fish! Finally, Dr. Doan has a secret love for goats!

Dr. Pamela Erskine, DVM

Veterinarian
Dr. Erskine's Bio

Dr. Erskine was born in Michigan but grew up in the Los Angeles area of California. She received her Doctorate of Veterinary Medicine from Purdue University in Indiana in 2010. Dr. Erskine has been working in the Permian Basin since 2014 and joined the team at Animal Clinic at Mission Square in August 2020. She is a member of the American Veterinary Medical Association and Texas Veterinary Medical Association. While away from the clinic, she enjoys cooking, reading, and spending time with friends.

Miranda Holtzapple

Practice Manager

Miranda's Bio

Miranda graduated from Midland College with a degree in veterinary technology in 2011. Later that year, she started her career at Animal Clinic at Mission Square. Miranda and her husband now have a loving daughter along with their five dogs. She loves wound management and rehabilitation and hopes to one day further her education in this field of study.

Ericha

Venezia Calderon

Veterinary Technician

Venezia's Bio
Venezia recently moved to Texas to be closer to family. After graduating from the University of Arizona with a bachelors in Veterinary Science, she started working as a technician at a cat only hospital. It’s where she got her cat, River! She absolutely loves being a technician, her favorite type of work to do is dentistry. She plans on applying to veterinary school and continuing her education as she loves to learn! She loves her dog Pluto and her mischievous cat River that remind her everyday why she wants to be in the field. 
Makala Wharton

Makala Wharton

Veterinary Technician

Makala's Bio
Makala Wharton is a graduate of Forsan ISD. She began her career in veterinary medicine in 2016 and has been dedicated to helping animals ever since. Before joining ACMS, she worked at Animal Control for the city of Big Spring and at Big Spring Diagnostic Hospital. “Makala’s experience in helping Big Spring’s lost, neglected, and injured animals has clearly shaped her role at ACMS. Her favorite diagnostic tool at BVDH is their CT machine, which helps diagnose patients here at ACMS. As a veterinary technician, she enjoys the variety of different cases we see every day. It is never the same, and it keeps her on her toes!” She has four furry babies: Pebbles, Yoda, Rue, and Weasley. If she weren’t so skilled as a technician, she would have been a marine biologist.
Kamee Keeton

Kamee Keeton

Veterinary Technician

Kamee's Bio

Kamee Keeton was born and raised in Oklahoma. She moved to midland to be closer to family. She has been in the veterinary field for 4 years. She loves being around animals, building great relationships with clients and helping them understand the needs for their pets. Her goal is to her degree in veterinary medicine. She will soon be welcoming a precious baby boy.

Kamee Keeton

Hattie Renfro

Receptionist
Hattie's Bio
I’m Hattie, a dedicated Customer Service Representative currently pursuing my studies to become a Veterinary Technician. I’m passionate about animal care and committed to building a career that combines compassion, skill, and hands-on experience. Outside of work and school, I enjoy spending time outdoors — camping, hunting, and appreciating the natural world that inspires my love for animals.