Our Practice

We are a full-service animal hospital providing comprehensive pet healthcare services in Flower Mound, TX. Our veterinarians offer a wide variety of medical, surgical, and dental services. Our hospital has advanced equipment and technologies, including comprehensive in-house testing for accurate diagnosis, digital x-ray, surgical suites, dental suites, and a pharmacy. We are committed to providing quality care at every stage of your pet's life. From routine preventive care to early detection and treatment of a wide range of conditions and diseases, we have the expertise to provide the highest standard of care for your pet. We also serve Grapevine, Lewisville, Bartonville, Highland Village, & Coppell.

  • Dr. John Harvey


    Dr. Harvey was born in Metairie, Louisiana. He received his degree from the University of Florida College of Veterinary Medicine in 1998. Dr. Harvey began his veterinary career in the U.S. Army, serving as Chief Veterinarian at Redstone Arsenal in Huntsville, Alabama. He then joined a small animal hospital in 2001, serving as Associate Veterinarian, in Lake Mary, Florida.

    Dr. Harvey and his wife, Christine, excitedly discovered beautiful Flower Mound after a long search. They purchased Cross Timbers Animal Medical Center (formerly Aladdin Animal Hospital) to realize Dr. Harvey’s dream of practice ownership. Each and every day, the primary goal of Dr. Harvey and his staff at CT-AMC is to provide the most personalized and highest quality health care to each pet in our animal hospital family!

    In addition to the practice, Flower Mound is exactly the community that the Harveys were seeking to put down strong family roots for years to come. Dr. Harvey and Christine have three children. There have been many pet family members through the years; including, beloved Rogue and Smokey, the couple’s college cats; sweet Casey Dog, a black and tan coonhound adopted from Redstone in Alabama; and many rescue animals that completed the family.

    Currently, the family is blessed with lots of unconditional love from O’hana, a sweet and beautiful mixed breed dog from Coppell Humane Society, and Daphne, an amazing Pyrenees dog and true companion to O’hana and the Harvey family, from SPIN (Saving Pyrs in Need).

    When not taking care of our furry friends at Cross Timbers AMC, Dr. Harvey enjoys spending time with his family, golfing, hiking, reading and college football (Go Gators!). Dr. Harvey is also active in the community in the following ways:
    On Board of Directors, Flower Mound Animal Control
    On Board of Directors, Flower Mound Emergency Pet Hospital
    Member, American Veterinary Medical Association
    Member, Texas Veterinary Medical Association
    Den Leader for his son’s Cub Scout Pack
    Committee Chairman for the Cub Scout Pack
    Active Member of the WATCH D.O.G.S Program at Heritage Elementary and McAuliffe Elementary where his children attend school

  • Dr. Dena Hartley-Lock


    Dr. Lock was born in Minnesota and while growing up, lived in Michigan, Wisconsin, Nevada, Texas and Tennessee.  She received her Bachelor’s degree in Animal Science from the University of Nevada, Reno.  She then worked in the veterinary field as a technician for 4 years while applying to veterinary school.  She received her Doctor of Veterinary Medicine degree from the University of Tennessee, Knoxville. Her love of college football and the Tennessee Volunteers began here!  During her time at Tennessee, she also realized her affinity for feline medicine and was the president of the student chapter of the American Association of Feline Practitioners for 2 years.

    After graduation, she worked for a nationally recognized feline practitioner for 2 years before joining Cross Timbers Animal Medical Center in 2004.  She truly enjoys that this has allowed the diversity of getting to work with dogs, in addition to being able to continue her passion for cats.  She is proud of the fact that Cross Timbers became a fear-free certified hospital in 2018.  The entire staff works hard to provide a stress-free environment for all pets that have the pleasure of caring for.  A future goal is to become ABVP certified in feline medicine.  She is USDA accredited and has experience in international pet travel and helping clients who are traveling or moving overseas with their pets.

    Dena and her husband, Bevin were married in 2006 and in 2011, they had their daughter Zealyn and in 2012, their daughter Tinzley.  The girls keep them active with gymnastics classes and they love attending Adkins Elementary in Lantana where they also reside.  The family loves to travel and they find as much time as possible to go to New Zealand where Bevin’s family lives and he grew up.  They share their home with multiple felines and their dog, Peyton (yes, as in Manning).

    Dr. Lock loves working with and getting to know patients and clients and forming bonds with them.  She considers her clients and the staff at CTAMC her extended family.

    Member, American Association of Feline Practitioners

    Member, American Veterinary Medical Association

    Member, Texas Veterinary Medical Association

  • Dr. Al Arca


    Dr. Al Arca has been with Cross Timbers Animal Medical Center since 2016 as a relief veterinarian.  He graduated with his Doctorate in Veterinary Medicine in 1988 from Texas A&M University.  Dr. Arca has been working as a relief veterinarian in the DFW area for over 14 years!  We are proud to have him with us on most Tuesdays throughout the year and on some Saturdays as his schedule allows.

    Dr. Arca is married to Dr. Sandra Arca, a pediatrician with Cook’s Children Network.  They have three amazing daughters who are following in their parents’ footsteps attending school at Texas A&M University.  The Arca Family includes 2 dogs and 2 cats.  When Dr. Arca is not taking care of his patients, he enjoys jogging, genealogy, reading and keeping up with his kids and furry friends.

  • Dr. Kim


    Dr. Kim was born in South Korea. He received his degree at Konkuk University in 2010. He firstly began a veterinary career as a research veterinarian in the animal vaccine company. Then he wanted to study more about viruses and its transmission, and joined a graduation program at the University of Minnesota in 2014. He received Master’s degree and began the Program for the Assessment of Veterinary Education Equivalence (PAVE) for accreditation of his veterinary license to start working as a licensed veterinarian in the USA. He successfully completed clinical experience evaluation in the Louisiana State University and joined Cross Timbers Animal Medical Center in 2021.

    Dr. Kim is married to Dr. Im, a renowned veterinarian who classified the canine mammary gland tumor. They have been enjoying North Texas life with a beautiful long-haired dachshund, Yeo-rum (Summer in Korean).

    When Dr. Kim is not taking care of his patients, he enjoys playing baseball, softball, golf, and reading recent small animal research.

  • Meghan

    Practice Manager

    Meghan lives in Fort Worth with her husband and their three dogs- Morty, Lacey and Lenny. She has been in the veterinary field since 2013, starting as a veterinary technician and cross-training in CSR before working her way to her first Practice Manager position in 2016. She enjoys helping ensure every client and patient experience at Cross timbers is exceptional, and helping the team learn and grow their skills and careers. Meghan can always be seen with a coffee in hand and snuggling on a patient, and can’t wait to meet you and your furry family! 

  • Kasey

    Client Service Specialist

    Kasey became one of our amazing receptionists in September of 2019. She was born and raised in Dallas, Texas; a true Texan! She has worked with animals since 2012. She has 2 dogs a black Golden Retriever named Blossom and a tri-colored Corgi named Ranger (Go Texas Rangers!) Her hobbies include spending time with her family and her dogs, and she enjoys watching Texas sports teams.

  • Bridget

    Certified Vet Technician

    Bridget McGraw has been with us since December of 2015. She brings almost 10 years of experience with her and we are lucky to have her! She graduated from and received her RVT from the renowned Bel-Rea Veterinary Technician Training Program in Denver, Colorado in 2010. She is originally from the Chicago area and moved to Texas in 2007. Bridget has 5 dogs: Sophie, Izzy, Cosmo, Bella and Hester as well as a parakeet named Sunny. Outside of work, Bridget loves to read and watch TV. She likes going on long walks with her dogs. She has also found baking to be therapeutic.

  • Abby

    Vet Tech Assistant

    Abby initially joined the Cross Timbers family in 2018 as a Kennel Assistant and has been working with our team as a Veterinary Technician Assistant since October 2019. She grew up right here in Flower Mound, graduated from Oklahoma State University with her B.S. in Zoology in 2017, and is currently attending Dallas College’s Veterinary Technology program in pursuit of becoming a credentialed Veterinary Technician. With previous experience in wildlife research, raptor husbandry, as well as domestic animal care including Fear Free and Cat Friendly certification, Abby loves getting to know and help take care of all our furry friends at Cross Timbers! In her free time, she enjoys sketching, getting outdoors, and spending time at home with her own two pups, Picnic and Sadie.

  • Carolina

    Vet Tech Assistant

    Hi, I’m Carolina and I started working at Cross Timbers November 9, 2020. I am currently going to Cedar Valley for its Veterinary Technician program. I have two dogs and a cat who I love very much. I like to dance, sing, trying new places to eat, and watch anime on my days off.

  • Alexis


    Alexis joined Cross Timbers AMC in May 2021. He is a Dallas, TX native and recently graduated from the University of North Texas in Denton, TX with a B.S. in Biology with a minor in Chemistry. He plans on attending Veterinary School in the future. As a student, he was both President of UNT’s Pre-Veterinary Medicine Club and served as a college mentor for local high school students. Alexis also has previous experience volunteering at the SPCA of Texas working with both shelter animals and patients in their wellness clinic. In his free time, he enjoys cooking, exploring the city with friends and spending time with his two dogs! 

  • Christina


  • Keisha


  • Kristyn


    Kristyn and her husband are longtime residents of Flower Mound having both grown up in the area. They have three kids-two sons and a daughter.  They share their life with three dogs, a pony, a horse, a crested gecko and a hamster. 

    Kristyn has over 5 years in the Veterinary Field and considers herself a lifelong learner. After attending SMU, she returned to TWU to further her education. A former teacher, she enjoys educating clients and providing support to our Cross Timbers Family. Forming lasting relationships with our animal friends and their humans is very important to her. 

    Kristyn enjoys getting outdoors, sports, traveling, riding her horse, yoga and time with family and friends.

  • Laura


    Laura has been with Cross Timbers Animal Medical Center since May of 2015. She was born and raised in the area and loves it! Outside of work she enjoys spending time with her many animals – dogs, cats, and even pigs! 

  • Lulu


  • Mandy


    Mandy is a Veterinary Technician that worker her way up and transitioned from Kennel Assistant. She has always had a passion for aimals and has a border collie, Leeloo, and a grey shorthaired cat named Lunchkin. In her free time, she loves to volunteer at various animal rescues and environmental groups. 

  • Naomie


    Naomie started working at Cross Timbers in May 2021 and has one year of clinical experience. She is working towards an Associate’s degree in Veterinary Technology from Dallas College and currently holds a Bachelor’s degree in Biochemistry from the University of Texas at Austin. She has two dogs, a turtle, two fish and an African dwarf frog. She aspires to become a Board Certified Veterinarian of Zoological Medicine. She enjoys spending time with her family and friends, and plays volleyball in her free time. 

  • JP

    Kennel Assistant

  • Sandra

    Sandra was born and raised in Los Angeles, California. She moved to Texas in 2020 and has been in the veterinary field for 16 years. She enjoys interacting with clients and cuddling the patients. She has a highland lynx named Luna and black lab named Bella. Outside of work she enjoys spending time with her family, and exploring Texas. She can’t wait to meet you and your furry family!