Meet Our Team

Veterinarians of MRVS

  • Dr.
    Jan Valinoti

    Animals have always been a part of my life. At a young age I aspired to a career in veterinary medicine. I attended veterinary school at the University of Georgia, graduated in 1988 and later joined Mokelumne River Veterinary Services in 2004. My goal as a veterinarian is to provide pets and their people the resources to make their lives healthier and happier. I am fortunate to be in an environment where I work with animals every day in the wonderful community that I grew up in. My husband Parnell and I have two daughters, Mari and Sarah, and an animal family that includes dogs, cats (all rescues) chickens and horses. My husband and I love the outdoors and spend our free time hiking and taking care of our garden and vineyard. I also enjoy horseback riding as well.

  • Dr.
    Beth Klapstein

    My life has always been devoted to animals. I know of no better way to help them than to be a veterinarian. The bonus is that it's the nicest people who have pets. Being a veterinarian is a great way of life. My first goal is that my patients are comfortable, this not only benefits the pet but also allows for a better evaluation. Then we can best address the needs of the pet and the concerns of the client. My husband Tom and I have been married for over 3 years. We have one son, Tommy who lives in San Francisco. My cats Bibs, Lucy, Boog and Striper round up the household. I also have 3 sisters and 2 brothers scattered around the country. A philosophy that I live by 'expect the best but be prepared for the worst. you often get what you expect'.

  • Dr.
    Debbie Cousyn

    Dr. Cousyn was first inspired to become a veterinarian when volunteering at a local humane society as a teenager. She went to UC Davis and earned her DVM degree in 1984. After working in various small animals clinics, Dr. Cousyn owned and operated a successful Stockton small animal practice for 7 years until she and her husband adopted 2 daughters and sold the practice. As the girls grew, she worked part-time at local clinics and joined MRVS in 2007, where her primary interest has been soft tissue surgery. Her goal with each patient is to provide the best possible care and to ensure good communication with owner regarding their pet's care. Dr. Cousyn lives with her husband, 3 cats, 4 dogs, sheep, goats and chickens. Their daughters are now in college. her hobbies include gardening and hiking.

  • Dr.
    Lindsay Smith

    My compassionate nature and desire to be an advocate for animals is what guided me to become a veterinarian. I felt a bond with animals at a very early age and that has always been a driving force in my career path. I knew being able to help animals be healthy, happy members of their families would bring me happiness and purpose. Every time I have the opportunity to be part of a pets wellness I strive to provide a tailor-fitted care package for the family's lifestyle, concerns, and goals. It's important to me to take all those factors in to account and provide pets with optimal care. My wife and I have rescued two wonderfully charismatic shaggy dogs, and one fancy, fluffy all white cat. It makes for a lot of vacuuming but it is absolutely worth it! We love to take the dogs on hikes and beach adventures; they are excellent backpacking companions! A philosophy that I like to live by, that seems so simple but is oftentimes forgotten, is 'do unto other as you would have done unto you'.

  • Dr.
    Ronald Laub

    Dr. Laub is officially retired! We are so pleased for him and wish him the best as he enjoys his retirement!

  • Dr.
    Bob Just
    Large Animal Veterinarian

      Dr. Just was born and raised in Yuba City, CA where his parents still reside. He attended Yuba City High School and the University of California Davis where he graduated with a BS in plant genetics. From there he attended veterinary school at Lincoln Memorial University in Harrogate, Tennessee. He graduated with a food animal focus. Dr. Just became a veterinarian because of his love for animals and the outdoors. He treats a wide variety of large and not so large animals including horses, pigs, sheep, goats, llamas, alpacas, cattle (Dairy and Beef) chickens and even bees. His goal with every patient visit is to give his clients a good value and great service. Outside of veterinary medicine, he spends time with his 2 dogs and 3 goats. He enjoys hunting, fishing, mountain biking, sailing and farming.


Office Hours

Main Office


7:00 am-5:30 pm


7:00 am-5:30 pm


7:00 am-5:30 pm


7:00 am-5:30 pm


7:00 am-5:30 pm


7:00 am-12:00 pm