Our Team

Our team is here to help.

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


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

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.

Elaina Bonaventura

Licensed Veterinary Technician
Elaina's Bio
Elaina was born and raised in Houston, Texas. In 2019, she graduated from Blin College’s Veterinary Technology Program in College Station, Texas. Elaina is a licensed veterinary technician and has been lucky enough to work in the vet field for five years. In her free time, Elaina loves to travel. When she’s not traveling the world, she loves hanging out with her handsome Labrador Retriever named Stone.

Johanna Doan

Veterinary Technician
Johanna's Bio
Hello, my name is Johanna, I graduated from MHS in 2020. To continue my education, I attended UTPB during my first year of college majoring in sciences, then transferred to Midland College where I am currently still attending working towards applying to the sonography program and getting certified in Ultrasound. I have two dogs at home Winston and Whiskey and a Horse Trixie who I love to visit in Merkel Tx. when I have free time!

Crystal Oliva

Veterinary Technician

Crystal's Bio
She graduated high school in 2019. Since then, she decided to join the veterinary field. Since being in the field she had rescued most of her fur babies. She has 2 dogs and 5 cats. Besides her love for veterinary medicine, she loves to play video games and be with family in her spare time.

Ericha McGee

Veterinary Technician
Ericha's Bio

She recently graduated from Pima Medical Institute, originally from Tempe, AZ. She is working on getting her license to be a registered veterinary technician. She loves all kinds of animals, but reptiles have a special place. She has 4 cats and 7 reptiles. Outside of work she enjoys roller skating, drawing and playing basketball.


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. 

Brenna Mackey


Brenna's Bio

Born and raised in Midland, she graduated from Lee High School in 2011. She has 2 fur babies, who are dogs. Lexas is a very sweet, loving pitt mix. Oliver is a crazy/hyper/loving pittbull. When she isn’t working, you will catch her spending time with her husband and son.