American Animal Hospital Association (AAHA)
(925) 443-6000

Ryan Jennings, DVM

Dr. Jennings knew that he wanted to be a veterinarian since he was 6 years old.

He graduated in 2014, with his Bachelor of Science degree in Animal Science at the University of California Davis and went on to get his Doctorate of Veterinary Medicine at UC Davis.

When Dr. Jennings is not in the office treating his patients, he can be found spending time with his family and friends, reading, and watching TV/movies.

“I am thrilled to be a part of the Del Valle Pet Hospital family and I look forward to becoming your trusted veterinarian.” – Dr. Jennings

Karin Connor, BVMS


Practicing Since: 2007
Education: University of Glascow

Dr. Karin Connor grew up and went to school here in Livermore. Her Grandfather was a veterinarian in southern California and she was happy to be taught at a young age how to give medications and give injections to her own pets under his supervision. She even got to watch her first dog get neutered! She grew up with dogs, cats, rats, and her horse and cannot remember a time when she did not want to be a vet too.

After attending Granada High School she went for her undergraduate at U.C. Berkeley and completed her junior year abroad in Glasgow, Scotland. She was accepted into the Veterinary School at the University of Glasgow for the following year where she completed her BVMS (the Scottish veterinary degree). She has fond memories of her placements in Scotland- her first spay was a West Highland White Terrier in the West Highlands and de-horning Highland calves on small remote islands off the coast of Scotland. During her 6 years living in Scotland she met her husband, Christopher, and when she graduated in 2007 they moved back to California.

She loves spending time with her husband and their 2 young children.

At home she is surrounded by her pets; the cats-“Bonnie” and “Clyde” and “Spike” all DSH tabbys. As well as the dogs-“Mackintosh”- a Malti-poo, “Tim”- a Chihuahua, and “Dave”- a Labradoodle- all rescues.

In her spare time she loves watching Mystery TV shows and reading.

Laura Rensink, DVM


Practicing Since: 1997
Education: UC Davis

Dr. Laura Rensink grew up in Sacramento, CA. She has always been surrounded by pets: dogs, cats, rabbits, hamsters, guinea pigs, rats, a snake, and even did sheep with her kids in 4H.

She attended Humboldt State where she met her husband Gary in the marching band. They moved to San Diego where she earned her Bachelor of Science degree in Biology while also working as a veterinary technician. They next moved to Davis where she received her Doctor of Veterinary Medicine degree from UC Davis in 1997. She is a member of both the California Veterinary Medical Association and the American Veterinary Medical Association and enjoys attending continuing education conferences.

She shares her home with 3 cats and 2 dogs, all wonderful rescues. She also has 3 daughters and enjoys kayaking, reading, and camping.

She joined the Del Valle Family in 2004.

Jacqueline McCool, DVM

Practice Owner, Veterinarian

Practicing Since: 1991
Education: Auburn University

Dr. Jacqueline McCool grew up in south Florida. She realized at the age of nine that she wanted to become a veterinarian to help as many animals as possible after her first cat Papillion was hit by a car and killed.

She attended Auburn University in Alabama for both undergraduate studies and vet school. She received her Doctor of Veterinary Medicine degree in June 1991. She practiced in Florida for one year then moved to California to be closer to her family.

She has practiced in Livermore, CA since August 1995 and purchased Del Valle Pet Hospital in September 2000. She is a member of American Animal Hospital Association, American Veterinary Medical Association, California Veterinary Medical Association and American Association of Feline Practitioners.

Her two children, Ryan and Caitlin are also animal lovers. They currently share their home with a rescue cat named Beetle, a beautiful Yellow Lab named Keane and a Dachshund/Chihuahua mix named Guinness. When she is not working, Dr. McCool enjoys working out and doing outdoor activities with her family.