Austin Vet Care has developed a team of highly trained support staff, which includes veterinary technicians and assistants, and receptionists to maintain efficient quality patient/client care 24 hours a day, 7 days a week.

Our staff has many years of experience in the veterinary field and their dedication to the profession is reflected in the compassionate care they give to each and every patient and pet owner.

Continuing education is a top priority for our entire staff. We conduct in-house lectures for our support staff and we also host seminars for members of the veterinary community. Employees are also encouraged to attend conferences outside the hospital in order to continue the education process.

Our team philosophy is to treat each pet as if it were our own, providing quality compassionate care at any time of the day or night.

Meet the Austin Vet Care Team:


Dr. Erica Hartmann-DVM 072915

Erica Hartmann
DVM, Chief Medical Officer

Dr. Erica Hartmann comes from the land of the cornhuskers.  She moved to Austin 6 years ago and has been working at Austin Vet Care during this entire time and is currently the Chief Medical Officer.  She met her husband Alex in San Antonio who recently retired from the Air Force.  Dr. Hartmann enjoys all aspect of medicine and surgery for cats and dogs.  She has been practicing for almost 10 years now and has done advanced training in the surgery field.  She has a large 100 pound dog named Boysen, her soul mate, who enjoys riding on and jumping off of her stand up paddle board and loves to swim in Townlake for hours on end.  She also has a chinchilla named Tipsy that has just turned 10 years old and is going strong.  She loves the live music scene here in Austin and, if she is not on her stand up paddle board, she will be at a venue checking out a band.  Her favor phrase in veterinary medicine is “Help me, Help you”. She likes to work as a team with the owners to determine the best plan for each pet.

Dr. Mark Cotnam-DVM 072915

Mark Cotnam

Dr. Mark Cotnam graduated from TAMU-CVM in 1980. He has practiced veterinary medicine for the last 35 years! He did 2 years of undergrad at San Antonio College before finishing his B.S in Biomedical Science at TAMU. He then did 3 years at the College of Veterinary Medicine before earning his Doctorate. Dr. Cotnam has 1 dog, a rescued 4 year old Chihuahua/dachshund mix named Jakobi. During his free time, he enjoys spending time with his wife and daughters. He also enjoys cartooning, playing the guitar and mandolin, and going to the movies.

“My goal for every person and pet that I’m involved with is for them to feel cared for medically and personally to the best of my ability.”-Dr. Mark Cotnam

Dr. Adrienne Gwin-DVM 072915

Adrienne Gwin

Adrienne Gwin, DVM grew up in Dallas, Texas.  She graduated from Colorado State School of Veterinary Medicine in 2005.  Following a year-long internship at a specialty hospital outside of Washington D.C., Dr. Gwin moved to Austin and began work with Austin Vet Care.  She is married with two rambunctious boys.  She also has 2 dogs (Scout and Radar) and an ever fluctuating number of fish.  In her spare time, Dr. Gwin enjoys spending time outdoors with her family and friends.

“I like to get to know people and their pets and enjoy becoming a part of that relationship.  Experiencing the compassion and joy that people and animals share makes me want to come back to work each day.”-Dr. Adrienne Gwin

Dr. Catherine Lamkin-DVM 072915

Catherine Lamkin

Dr. Catherine Lamkin has been at Austin Vet Care since 2007. She started her journey in the veterinary field as a Vet Tech/receptionist while pursuing her Bachelor’s degree at OSU. She later graduated from OSU as a doctor of veterinary medicine. Dr. Lamkin has two diabetic pugs. When she is not working she enjoys gardening and playing hide & seek with her son.

“I work with dogs and cats because I adore them. They love unconditionally and reveal the best of their human family; I want to do everything I can to help support that relationship.”-Dr. Catherine Lamkin

Nancy Callaway

Nancy Callaway has been working as a veterinarian for 20 years. She started working part-time at Austin Vet Care when it was North Austin Emergency Hospital in 1996, and then started working full-time in 2005 when it was named Central Park Animal Hospital. Dr. Callaway adopted 2 dogs after they were brought in having Parvo virus; they are her family! She recently added a third pooch to her family after finding a stray on the roads of Louisiana. She graduated from Texas A&M University College of Veterinary Medicine in 1995. In her free time she enjoys gardening, rock hunting, hiking, kayaking, snorkeling, taking her dogs to the park, and when she gets the chance, traveling.

Jessica Horn-Tech 072915

Operations Manager

Jessica moved to Austin in 2013 from Connecticut.  She graduated in 2010 from the University of Connecticut with a bachelors in animal science and has been working as a veterinary technician since 2005. In her spare time she enjoys riding horses and spending time with her son.

“I enjoy being a veterinary technician because it is both challenging and rewarding. One of my favorite quotes is ‘Only a person who loves a challenge would take on patients who can’t tell them where it hurts.’”–Jessica

Veterinary Technician/Surgery Technician Supervisor

Josie has worked in the veterinary field for over eight years, all of these at Austin Vet Care. She currently shares her home with two dogs, one cat, her two daughters and husband. In her free time, she enjoys spending time with her kids, helping with reading, homework, entertainment and playing at area parks.

“I do my very best to make my patients feel better so they can return home to be with their family.” -Josie


Veterinary Technician

Marie started working in a vet clinic when she was sixteen and loved it so much she ended up coming back to the field after getting her Bachelor of Science in college. She joined Austin Vet care in late 2015. She has an Australian Shepherd named Indy and a black cat named Pru. In her free time, she enjoys writing short stories and playing video games.

“I love working with animals and helping people, and this is the most rewarding, most fulfilling job I know.” -Marie

Team member Jennifer Kim

Veterinary Technician

Jennifer was born and raised in New York and has recently moved to Austin. She grew up with a deep love of all living creatures and frequently brought home injured birds, squirrels, and anything that needed nurturing. Growing up she had many pets including, but not limited to, sugar gliders, hamsters, turtles, snakes, quails and chickens. Her family lives on a farm in Upstate New York where her golden retriever Mona, cat Kooku and ever-growing flock of chickens live. Shortly after graduating college, she started working in the veterinary field as a Client Service Representative. Her passion and curiosity in veterinary medicine continues to grow. She finds it very rewarding to help owners and their furry companions. Her interests outside of work include exploring trails, listening to music, creating digital art, cooking, and spending time with friends.

Practice Manager

Laura originally moved to Austin 19 years ago to pursue a B.S. degree in Biochemistry at The University of Texas.  After graduating, she settled in Austin permanently.  She has worked in the veterinary field as a technician and manager for over 17 years.  In her spare time, she enjoys reading, hiking with her dogs, gardening and sampling all the fine restaurants Austin has to offer.  She currently shares her house with three pit bulls, Zella, Grimm and Rufus.

“I work in this field because I obviously love pets, but I also love the human/animal bond that we have with them.  They give us so much–comfort, trust, unconditional love and devotion–and teach us so much about ourselves.  I enjoy being their advocate and am privileged to be able to help others do the same.”-Laura Hawk

CSR Manager

Raina has worked as a Customer Service Representative in the Veterinary field for many years. She has been with Austin Vet Care for 7 years.  Raina owns 2 very high-spirited French Bulldogs named Gumbo and Jambalaya, which definitely keep her busy. In her free time, she enjoys spending time with her family, friends and watching and cheering when her three sons play basketball.

“I love puppies, especially very fluffy ones!!!” –Raina

CSR – Reception

Amber has worked at Austin Vet Care for many years. She loves animals! She has a toy poodle named Cindy and three cats named Madelyn, Hope, & T-bone Walker. Amber also has a Pacman frog (Popeye), two ball pythons (Moto & Moyo) and a fish tank. Her interests include running, boating, biking and going to the gym. She enjoys being outdoor during her spare time.


Sandra joined the team at AVC in September 2015. She has 4 pets: an Australian Shepherd, 2 cats, and a hedgehog. In her free time, she enjoys spending time with her family, baking, and reading.

“I like being able to give back to the pets that give so much to their families.”