STAFF

The P.E.T.S. Staff works tirelessly to implement the P.E.T.S. Mission in every task they take on. Customer service means making sure you love your visit. It also means making sure your pets are cared for like family. When it comes to your furry family members, our staff would probably take each one home if you’d let them.

Leslie Harrelson

Founder & CEO

Leslie Harrelson founded P.E.T.S. Low Cost Spay and Neuter Clinic in July of 2007. Leslie graduated from Midwestern in 2000. She is currently the President and CEO of P.E.T.S. After spending 11 years running the day to day operations of P.E.T.S., the growth of P.E.T.S. demanded that Leslie focus on larger goals for the organization. She spends her days overseeing all service and program operations while focusing on clinic growth and fundraising.

George Tipton

Director of Marketing and Development

George Tipton came on as a P.E.T.S. Director in May of 2017. George graduated with a Bachelor of Fine Arts from Midwestern in 2003 and a Master of Science in Internet Marketing in 2015. He works for all branches of PETS Clinic wearing multiple hats, including creating and maintaining the website, digital ads, analytics, and managing social media. He also manages fundraising strategy, donor software, donor communications, clinic software, technical processes, and technical training. 

Dr. Tammen

Veterinarian

Dr. Tammen received her Doctor of Veterinary Medicine degree from Texas A&M. She is the Chief Medical Officer at PETS Clinic and our spay/neuter Queen. Dr. Tammen has been with PETS since our very first day. Dr. Tammen is the savior of unwanted pets filling her home with those discarded by others or deemed unadoptable. She loves estate sales, pickles, and family. She has a very large family including a twin sister and dozens of nieces, nephews, and great-nieces and great-nephews.

Dr. Rouillard

Veterinarian

Dr. Rouillard received his Doctor of Veterinary Medicine degree from Oklahoma State University. He practiced as full-service vet for 22 years in Wichita Falls. Currently, Dr. Rouillard splits his time between PETS and ABC, a spay and neuter clinic in Lawton. You will also see him at Animal Hospital in Wichita Falls. Dr. Rouillard joined our PETS family in 2008. He is a highly skilled surgeon and resident encyclopedia. We have yet to discover anything he doesn’t know.  Dr. Rouillard is the friendliest person you will ever meet and possibly the proudest father. He has a son, daughter, and wife of 30 years.  

Dr. Brown

Veterinarian

Dr. Brown received his DVM from Colorado State University where he also served as a police officer before becoming a veterinarian. He has been married to his beautiful wife Kathy for 34 years and is the proud father of 2 daughters. Dr. Brown owned his own practice in Oklahoma for 10 years but has also worked in Alaska and Colorado. Dr. Brown currently lives in Colorado and blesses us with his humor and surgery skills one week of every month. Dr. Brown loves excitement. When he isn’t working as a vet, you will find him flying around in his powered parachute or on his motorized skateboard. 

Dr. Hass

Veterinarian

Dr. Haas is originally from Mississippi and received her DVM degree from Mississippi State. She is married and  has two children and multiple pets. In her free time, she loves walking her dogs, gardening and traveling.

Dr. Templer

Veterinarian

Dr. Templer graduated from Oklahoma State University with a Doctorate in Veterinary Medicine.  She has 5 dogs at home plus a foster dog. She chose our clinic because she “loves and admires the PETS family, professionalism, and mission. In her spare time, she enjoys hiking and photography. She also makes incredible jam from her family’s orchard in Oklahoma. If you have the pleasure to meet Dr. Templer in person you will see her kind, patient, and compassionate nature truly shine. She gives 150% of herself to every pet she sees. 

Dr. Aguilar

Veterinarian

Dr. Rodrigo Aguilar Orozco joins us all the way from Mexico City, Mexico. He is a 2019 Honor graduate of UNAM and has over 11 years of experience in veterinary medicine. Dr. Aguilar is patient, loving, and compassionate. He looks forward to serving all pets and will happily put his Spanish language speaking skills to use if any of our clients prefer. In his free time, Dr. Aguilar enjoys cycling and trying new things, especially food and coffee. 

Dr. Mandujano

Veterinarian

Dr. Itzel Mandujano is another gift from Mexico and graduate of UNAM. She and her precious furbaby, Chewbacca aka Chewbie are ready to serve you and your pets. Dr. Mandujano has 5 years experience and when she’s not spending time serving your pets, she and Chewbie are on the go. They like to do everything together including long walks, hiking or just relaxing. Itzel also enjoys painting and playing basketball.

Dr. Barrio

Veterinarian

Dr. Barrio graduated from veterinary school at UNAM in Mexico City in 2018. She has experience in dogs and cats, but also has a Masters degree in wildlife, specializing in opossums. She likes to spend her free time doing acrobatic sports and dance activities. She also enjoys hiking and everything that has relation with nature, such as camping, hiking and long walks.

Dr. Daher

Veterinarian

Dr. Daher graduated from UNAM in Mexico City. He completed his in-depth studies in medicine and surgery of dogs and cats. He is accredited by the Mexican Federation of Zootechnical Veterinary Doctors and has 11 years of experience practicing, in addition to a Masters degree in Production and Animal Health Sciences with a specialty in Disease Ecology and One Health mainly tracking tick-borne zoonotic diseases in wild and domestic carnivores. He has worked in zoos in Mexico promoting animal welfare and environmental enrichment. He loves all animals and is happy to dedicate his life to the health and rights of those who cannot speak and will be happy to help any animal and person that requires it because we are all together in this world and no one can exist without the others. No matter what, we are pieces of the same puzzle. In his free time, he enjoys reading, riding his motorcycle, trekking, camping, fishing, photography, poetry, watching movies and watching birds.

Dr. Gutierrez

Veterinarian

Dr. Gutierrez comes to us from Mexico City, Mexico. She graduated from UNAM in 2022. Before coming to PETS Clinic, she was working as an academic at the UNAM in many different subjects, such as Animal Nutrition, Animal Feeding, Biochemistry and others. She has around 6-7 years experience. She loves small animal clinical nutrition. She has previously given nutrition consultations for both healthy and overweight dogs and cats in massive Journeys of Animal Welfare. She also gave private consultations for 2 years to pet owners with dogs with different conditions or diseases.
Dr. Gutierrez has a dog, a cat and a bunny. She is kind, respectful, responsible and comprehensive. In her free time, she enjoys dancing, singing, writing, hiking and walking.

Dr. Tischendorf

Veterinarian

Jay is a veterinarian and wildlife biologist whose experience spans clinical practice, natural resource conservation, and the pharmaceutical industry.  He is passionate about educating people on the dangers of infectious and zoonotic diseases and speaks widely on this subject to audiences ranging from fellow medical and natural resource professionals to nuisance wildlife operators and animal control officers.  His work has taken him from coast to coast and into Canada and Central America.  Dr. Jay is a former US Marine, EMT, and wildland firefighter.  He lives in Kansas with his wife and son, and their 2 adopted cats.   

Dr. Dunivan

Veterinarian

Dr. Dunivan received her Doctor of Veterinary Medicine degree from the University of Missouri. Over the past 14 years, she has practiced in North Carolina, the UK and Canada. She and her husband moved here from Alberta with their daughter in July 2023. In her free time she enjoys playing basketball and snuggling with her two cats. Dr. Dunivan has a special interest in dentistry and internal medicine. She is thrilled to be a part of the PETS family and looks forward to helping members of this community and their pets.

Amber Gilmore
Executive Director
Since 2023

Stephanie Bennett
Director of Operations
Since 2015

Anibal Guevara
Director of Personnel
Since 2015

Alexis Adair
Lead Vet Tech
Since 2021

Christine Alsip
Vet Tech
Since 2022

Natalie Anderson
Vet Tech
Since 2022

Kari Banahan
Lead Vet Tech
Since 2018

Parker Brooks
Vet Tech
Since 2021

Linda Casper
Development Assistant
Since 2018

Eileen Chehllette
Vet Receptionist
Since 2022

Cade Conway
Vet Tech
Since 2021

Mason Cox
Vet Tech/Certified Vet Assistant
Since 2019

Monica Crawford
Customer Communications Team
Since 2020

Haley Embly
Vet Tech
Since 2021

Kelly Fernandez
Vet Tech
Since 2021

Presley Finn
Vet Tech
Since 2023

"Big Boy" Guevara
Recovery Tech
Since 2021

Kristin Guevara
Professional Assistant
Since 2021

Bonnie Gunter
Lead Vet Tech
Since 2020

Alison Hamberg
Vet Tech
Since 2022

Alaina Hatfield
Vet Tech
Since 2021

Kaéviana Humphrey
Vet Tech
Since 2023

Aracely Ibarra
Customer Communications Team
Since 2023

Maggie King
Vet Tech
Since 2011

Valerie Kocher
Customer Communications Team
Since 2020

Kai Lirano
Client Services/Invoicing Specialist
Since 2012

Rayghan McCord
Vet Tech
Since 2022

Karsyn Miser
Vet Tech
Since 2023

Selena Ordinario
Vet Tech
Since 2020

Savanna Phillips
Lead Vet Tech
Since 2022

Alan Pimentel
Overnight ER Tech
Since 2022

Lorenzo Reyna
Lead Vet Tech
Since 2014

Meredith Simaichl
Customer Communications Team
Since 2023

Gerald Stevens
Grounds Attendant
Since 2021

Mason Sullivan
Vet Tech
Since 2023

Randy Taylor
Vet Tech
Since 2021

Michelle Villalobos
Vet Tech
Since 2022

Cari Wallace
Customer Communications Team
Since 2022

Jessica Whitaker
Vet Tech
Since 2022

Shelly Wikel
Customer Communications Team
Since 2021

Miranda York
Vet Tech
Since 2023

Mikayla Zotz
Vet Tech
Since 2020

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