Gunbarrel Veterinary Hospital
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MEET OUR TEAM



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Dr. Jon Gustafson
Dr. Jon Gustafson, a Wyoming native, graduated from Colorado State University’s College of Veterinary Medicine in 1982.  He has a wide range of experience in small animal medicine and surgery and has been practicing in the front range area since 1983.  In his spare time he enjoys rock and ice climbing, skiing, hiking and camping.  He lives in Longmont with his wife Susan, their dogs Orson, June and Penny, four guinea pigs and a box turtle and two chickens.

​  JonGustafsonDVM@gunbarrelvet.com


"Our husky developed cancer over her hip two years ago, and Doctor Gustafson performed an intensive surgery to remove it. She has been cancer-free ever since! Basically he saved her life, and we are grateful. Thank you!"
-Allison K.


Dr. Brent Morris
Dr. Brent Morris has been working as a small-animal veterinarian in the Front Range area since graduating from CSU's Veterinary program in 2007. Dr. Morris joined the Gunbarrel Veterinary Hospital family in 2020, and couldn't be happier to be part of the team. He continues to be inspired by the connection between humans and animals—preserving and lengthening the bond between pets and their owners is the ultimate reward for him. His professional interests include preventative medicine, dentistry, and management of acute and chronic pain. In 2014, Dr. Morris earned the credentials of a Certified Veterinary Pain Practitioner through the International Veterinary Academy of Pain Management. He is also a member of Rotary, an international service organization.  Dr. Morris is an active participant in Rotary's annual youth leadership conference, a life-changing experience that he looks forward to every year. He's also fond of mountain biking, fly fishing, hiking, skiing, and exploring Colorado and the world.
BrentMorrisDVM@gunbarrelvet.com

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Dr. Leslie Williams
Dr. Leslie Williams graduated from the University of Georgia Veterinary School in 1996 and completed a one year internship in small animal medicine and surgery at Washington State University.  Dr. Williams is a certified acupuncturist offering acupuncture, laser and massage sessions for pets with orthopedic and neurologic conditions.  ​Dr. Williams lives in Longmont with her husband Andy, their two sons Josh and Ben, Herbie the Golden retriever and four cats.
​ LeslieWilliamsDVM@gunbarrelvet.com
"Dr. Williams is extremely knowledgeable and explains things very clearly. She and the staff working there are always attentive to my pets and passionate about what they do. "
-Marissa

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Dr. Michelle Feller
Dr. Michelle Feller is a 1996 graduate of the Michigan State University College of Veterinary Medicine. She was a mixed animal practitioner in Northwestern Michigan for three years before moving west with her husband Jeff. They moved to Boulder in 2006 and she joined Gunbarrel Veterinary Hospital as a part time associate.  Dr. Feller now practices small animal medicine exclusively. Her hobbies include hiking, photography, and reading, though her sons, Alex and Oscar, are her biggest hobbies. Their dogs Meadow and Lucy and their cat, Indy round out the family. MichelleFellerDVM@gunbarrelvet.com
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"I
couldn't be happier with Gunbarrel Vet Hospital, especially Dr. Michelle Feller who has been wonderful in her care of my geriatric cat with multiple old age issues.""  -R. Duxbury.




Gunbarrel Veterinary Hospital

4636 55th Street
Boulder, CO 80301
Phone: 303-530-2500   
Fax: 303-530-0522
clientservices@gunbarrelvet.com
HOSPITAL HOURS
Monday, Wednesday, Friday:
7:45 AM to 5:30 PM
Tuesday & Thursday:
7:45 AM to 7:00 PM
Saturday:
7:45 AM to 12:00 PM
.

BOARDING HOURS

Monday - Friday: 7:45 AM to 12:00 PM 
2:00 PM-4:00 PM
Saturday: 7:45 AM to 11:00 AM
Sunday: 3:00 PM to 6:00 PM*
*pre-paid pick up only-1/2 day charge applies


  • Home
  • Staff
    • Job Opportunities
  • Boarding
  • Doggie Day Care
  • Services
  • TOUR