staffHere at El Centro Pet Medical Center, our staff is filled with highly trained and experienced animal lovers who care deeply about their jobs. Everyone makes it a goal to learn everything they can about the field they love in order to give our patients the highest level of care.

Our team is also kind. The members treat each patient, whether healthy or sick, with plenty of love and attention. They educate owners on the importance of preventative care to keep their pets healthy, while doing everything they can to help when their pets are not feeling well.

If you would like to speak to one of our staff, feel free to contact us today at (254) 699-2425.


patPat Davis , D.V.M.
Being an Air Force brat it is hard to say where you are from, but I was born at Patrick AFB in Florida playing on the beaches and watching missiles catapulted into the heavens. I lived the longest in Clovis, New Mexico-home of tumbleweed Christmas trees and an abundance of dust storms. I had a wide variety of pets growing up (though my mom drew the line at skunks and snakes), enjoying each and every one. My passion was horses, and still is today.

I married my husband, Jimmy Davis, while he was in vet school. Many years after his graduation, I decided to go to vet school. I attended LSU my first year, then ended up transferring to and graduating from Auburn University in 2000. (It’s hard to go to one school when your spouse is military and moves frequently).

We have lived in the Killeen area since 2000 with a brief hiatus when the military sent us to Monterey Bay, California. We have two children, Ashley and Jordan. We also have a menagerie of dogs, cats, cockatiels, horses, and chickens, as well as some fish.

leeW Lee Erwin , D.V.M.
Dr. Erwin, a native Texan, spent most of his early years in the Houston area. A graduate of San Jacinto High School, he received a Bachelors and a Masters degree in Physics and Mathematics from Stephen F. Austin State College in Nacogdoches, Texas. He was employed on the faculty at Central Texas College for 4 years before attending Texas A&M University to study veterinary medicine. After graduating from The College of Veterinary Medicine at Texas A&M University in 1975, Dr. Erwin began his career in veterinary medicine in Killeen. In 1976, Dr. Erwin opened Southside Animal Clinic (later to be renamed El Centro Pet Medical & Laser Surgery Center) at its current location on South W.S. Young Drive where he has since practiced. In his 35 years of practice, he has had the privilege of watching hundreds of pets develop from new born to old age as well as their off-spring to do the same through several generations. Dr. Erwin also highly values the many long-term friendships with the families of all these pets that have developed over the years. Dr. Erwin transferred ownership to his long term colleague Dr. Pat Davis and assumed the role of Associate Veterinarian in 2009.

jimJim Davis, DVM
Dr. Jim Davis, husband of Dr. Pat Davis, was born in New Mexico. He attended Kansas State University where he graduated in 1988 and received his Veterinary Medicine degree. That same year, he joined the army as a Veterinarian, and later served 20 years retiring in 2009. He has since worked in private practices around the local area, including emergency services.

jasonJason Zollinger, DVM
Dr. Jason Zollinger graduated from Texas A & M University in 2003. He was born and raised in the state of Texas and has a wife and four kids. Dr. Zollinger has worked with the staff at El Centro since July of 2015.

paulaPaula
Paula was born in a small farm town in Wisconsin. She traveled extensively since her father was in the military. She settled down on a small ranch in Texas. Paula has four horses, Cheyenne, Cleo, Howdy, and Lakota. Three cats, Pepper, Delilah, and Socks. Two dogs, Dixie, Ally, and a bird named Beeper. Paula has worked in veterinary medicine for 30+ years.

tammyTammy
Tammy has been working at El Centro for 20 years. She has 3 Boston Terriers, “Greta”, “Daisy”, “Hugo” and “Louis” her Chinese Crested. Tammy enjoys living in the Killeen, Fort Hood area, where she is able to meet people from all over the world. She has watched a number of pets grow up over the years, and has made lasting friendships with a number of clients.

lexiLexi
Lexi moved to Texas from Burt, Michigan where she married her husband in February of 2015. She has two dogs named Vera and Koda.

cassieCassie
Cassie was born and raised in Copperas Cove, Texas. She has graduated and earned high honors from the McLennan Community College Vet Tech program in Waco in 2015. In March of 2016 she earned her vet tech license. She has 2 pugs named Molly and Otis, a Dachshund named Jasmine, a cat named Spooky, and a Guinea Pig named Walter.

zachariasZacharias
Zacharias was born at Scott & White hospital in Temple, Texas. His stepfather was in the military, so Zach has traveled quite a bit during his childhood including Kansas, Louisiana, and Oklahoma. In 2014 he moved to Houston and attended the Vet Tech Institute of Houston. Zach completed the program and received his Associates Degree in Applied Science in October of 2015. Zach lost his best friend “Kapone”, a lab/Pit Mix, in late 2013 and continues to search for another companion. Zach started working for El Centro in February of 2016.

brittenBritten
Britten was born and raised in Texas. She has been employed in the Veterinary Medical field for over 10+ years. Britten is also a certified groomer and had completed her education in 2007. Britten has an honest love and compassion for all animals and animal lovers alike.

tiffanyTiffany
Tiffany is a 12 year military spouse and moved to Texas four years ago from Germany. She has three dogs-Remy, Rowdy, and Reeba. She also has a cat-Mishka, and a Bearded Dragon named Dude. Tiffany completed the Animal Behavior College program in 2015 and was later hired as a Technician Assistant. We love having her here as she is a great asset to this facility!

maryMary
Mary moved to Texas all the way from California. She has three dogs, Bella, Tink, and Brutus. Mary has always loved animals and enjoys giving them the care and attention that they would receive at home while they stay with us.