Hours of Operation
Monday - Friday from 8 AM to 5 PM

We are available for emergency services as well.

Phone:​ 307-733-5590
Fax: 307-734-0762 

70 S Gros Ventre St / PO Box 4175 
Jackson WY 83001

Feel free to contact us on our Facebook Page by clicking the button below!

DVM and Management

Brittany Mattrella D.V.M. 

Dr. Mattrella moved to Jackson Hole in 2015.She graduated from Auburn University in Alabama and recently joined our team.

"I have always loved taking care of animals, ranging from frogs to ducks to horses. And I have had a fascination with surgery since I was a kid."

Ana Maretic: Head Technician

Ana moved to Jackson full time, and began working with Dr. Patterson in 2012. She graduated from the Facility of Veterinary Medicine at University of Zagreb, Croatia. Ana is in the process of becoming a licensed veterinarian in the United Sates. She finished her Educational Commission for Foreign Veterinary Graduates in May of 2017.

The Animal Care Clinic Staff


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Robert Carmichael D.V.M. 

Dr. Carmichael attended Baylor University as well as the University of Tennessee College of Veterinarian Medicine. He has been practicing veterinarian medicine for 13 years.

"I became a Veterinarian because of the bond that develops between pets and their owners. And because of the diverse responsibilities veterinarians have."

Ellie Peterson

Ellie was raised in Jackson and  has been working in customer service for 7 years. She joined the Animal Care Clinic team in June. She has two dogs of her own. She loves meeting and getting to know new animals and their owners.

We have a great team of highly qualified doctors specialized in veterinary medicine. Well trained technicians, and cheerful welcoming front desk attendants!

Tenley Thompson

Tenley moved to Jackson from Potomac MD in 2005. She holds a degree in wildlife biology from University of Wisconsin-Madison, with an emphasis in animal science. Tenley has been a veterinary technician at Animal Care Clinic for 2 years. When not a the clinic she works as a professional ceramics and textile artist.

Smokey: Office Greeter

Smokey is 10 years old. He loves to lay on the front desk and say hello to you and your pet!

Kate McGowan: Practice Manager

Kate has worked at Animal Care Clinic for 14 years. Kate moved to Jackson Hole in 1993, with a communication degree from Bridgewater State College. She met doctor Patterson as a client at the Animal Care Clinic and joined his team.

Flint: Keeper of the Backyard

Flint loves the outside, you don't see him as often as Smokey, but when you do he's charming and irresistible.

Alyssa Eaton

Alyssa moved to Jackson from Massachusetts in the summer of 2008.  She graduated in Veterinary Technician & Animal Science degree back in MA in 2004,  She came to Wyoming for a more adventurous setting.  She fell in love with hiking, climbing, rafting, and snowboarding (most often with her dog Rowdy).  She also fell in love with the Animal Care Clinic dynamic and has been a technician here for 5 years and counting.

Front Desk Staff

Ernie Patterson D.V.M.

Dr. Patterson moved to Jackson Hole in 1979 after graduating from Texas A&M. He independently established the Animal Care Clinic, which has grown and become very successful. He loves to work with small and large animals.