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Welcome to Allen Veterinary Hospital

Pet Emergency? Call us right away at 972-727-8383!

New Facility Update

We at Allen Veterinary Hospital are excited to let our community know that we are moving into a new facility in 2024.  We have been in our current location since 1986, and it is time to update our facility and grow with the Allen community we love.  We hope to continue to provide the hometown service we have since we started out as the first small animal clinic in Allen, but we are in need of a larger facility. The new clinic will be located at 851 E. Main St in Allen and will have 14 exam rooms, a larger waiting area, and yes, better parking.  We can not wait to be up and running by April and can't wait to see our clients and future clients for years to come.

About Our Company

Allen Veterinary Hospital opened its doors in January, 1986. Dr. Mike Overton founded the hospital in order to meet the small animal needs of Allen, Texas. Dr. Alan Coffman, a 16 year employee of the hospital, purchased the practice upon Dr. Overton's retirement in 2010, in order to continue exceptional service and reputation of Allen Veterinary Hosptial. Since then, it has grown to include three full-time veterinarians, one consultant veterinarian, and a staff of more than 24. We treat all sorts of companion animals with special emphasis in dogs and cats. 

Allen Veterinary Hospital has been awarded The People's Choice Award for Best Veterinary Practice in Collin County every year beginning from 2010, a proud streak that we don't want to have end.  Dr. Alan Coffman was recognized by The Texas Animal Control Association and received the W.R. Bilderback, DVM Award for rendering outstanding service to the animal control profession for the state of Texas.

Allen Veterinary Hospital is a proud sponsor of Allen Eagles High School (football, baseball, basketball, golf, performing arts). They are also sponsors of the Allen Americans hockey team, 2012-13, 2013-14 Presidents Cup Champions and 2014-15, 2015-16 Kelly Cup Champions!

At Allen Veterinary Hospital, we treat your pets like the valued family members they are.

Allen Veterinary Hospital | (972) 727-8383

803 E Main St Ste. A
Allen, TX 75002

Meet Our Skilled Team

Learn Who We Are

  • Dr.
    Chung-Hsuan Yu DVM.

    Dr. Yu has been with Allen Veterinary Hospital since 2022.  He was born in Taiwan and moved to the United States in 2003.  He attended the University of Texas for his undergraduate degree. He graduated from Tuskegee Veterinary School in 2013 and has been practicing for 10 years in Orlando, Nashville, and moved to Texas in 2019.  In his free time, he enjoys all kinds of outdoor activities like hiking, camping and skiing, and he loves to travel with friends.  He loves golden retrievers and had a red-haired golden named Cabela in the past. He now has a beagle named Boba and a cat named Tofu.  

  • Dr.
    Hailey Swager, DVM

    Dr. Swager joined the team in 2022 after graduating from the University of Illinois College of Veterinary Medicine.  She attended Augustana College for her undergraduate degree.  She has always wanted to be a veterinarian and after only 3 years of undergrad, she was accepted to vet school.  She was born and raised in the Chicagoland area and moved to Texas with her cat, Tiny, to join the Allen Vet staff.  She loves concerts and traveling in her free time with friends and her brother.

  • Dr.
    Alan Coffman, DVM

    Dr Alan Coffman was born and raised in Bartlesville, Oklahoma, a small oil and ranching community 40 miles north of Tulsa.  In his youth he volunteered and worked for Clinkenbeard Veterinary Clinic and Triple C Ranch for Dr. Clinkenbeard starting at the age of 12.  He graduated from Bartlesville High School in 1992 leaving Oklahoma to fulfill a two-year mission for the Church of Jesus Christ of Latter-Day Saints in the Fresno, California area.  Upon returning he completed his Bachelors degree from Brigham Young University in Animal Science (Pre-Vet Emphasis) and a minor in zoology in 1998.  His wife Amy also graduated from BYU in Elementary Education leaving a special place in his heart for teachers and educators.  Dr. Coffman received his Doctor of Veterinary Medicine degree at Oklahoma State University, College of Veterinary Medicine.  Dr. Coffman has been an employee of Allen Veterinary Hospital since 1996 and has worked here ever since.

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  • Dr.
    J. Brian Shiplov, DVM

    Dr. Brian Shiplov graduated from Louisiana State University school of Veterinary Medicine in 2005.  He joined Allen Veterinary Hospital in the fall of 2007 after moving to Texas from Richmond, Virginia where he first worked out of vet school.  Dr. Shiplov is originally from Shreveport, LA where he attended Louisiana Tech University for his undergraduate degree.  He was also a member of the Louisiana Army National Guard.  Dr. Shiplov lives in McKinney with his wife Kelly, who is also a veterinarian in Plano.  He and his wife have three kids, Katie, Ben, and Elliot.  They have two dogs Penny and Reba, and a cat named Lola.  Dr. Shiplov enjoys clinical pathology and surgery best when it comes to veterinary medicine.  In his spare time he enjoys music, playing guitar, and most of all spending time with his family.

  • Dr.
    Michael Overton, DVM

    Dr. Overton is from Paint Creek, Texas, a small farming community north of Abilene. He graduated from Texas A&M University in 1966 with a degree in physical education, and spent four years as an Army aviator, serving in Vietnam. Afterwards, he decided to return to school to pursue his doctorate in veterinary medicine and graduated from Texas A&M University a second time in 1977.

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Read What Our Clients Say

  • "Had Harper’s right paw checked, as she holds it up when she sits. Dr. examined and said everything looked good but did an X-ray to be sure. FOR FREE!!! Harper is just fine and either has phantom pains, remembers the procedure and is scared/scarred, or just doesn’t like her paws squeezed."
    Ashlee E.
  • "Truly love this vet! The only reason we have the pets we do (dog, ferrets, rats) is because we know this clinic will care for them without robbing us. So so so thankful! Dr. Mac, you are a jewel! This mama could not have made it without your calm and capable demeanor!"
    Kelly Lane K.


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Office Hours

Our Regular Schedule


7:30 am-6:00 pm


7:30 am-6:00 pm


7:30 am-6:00 pm


7:30 am-6:00 pm


7:30 am-6:00 pm


8:00 am-12:00 pm



*Doors open at 7:30am for surgical drop offs.
*Doctors and Technicians arrive at 8:15 am.
*Appointments start at 8:30 am.