Sierra Veterinary Care

We greatly value our clients and patients.  We also appreciate your visit to our website so that we can give you more information about who we are and our practice philosophy.

Our purpose is to make a real and warm difference in the lives of pets and their owners; to advance the health and well-being of animals by providing the highest quality of patient care in an atmosphere of love and concern and in an environment designed to meet the physical and emotional needs of patients and their families.

Our Doctors have built reputations in our community for providing the highest level of veterinary medicine and compassionate care for our patients and excellent communication for their families.

Our staff is highly trained and ready to provide excellent
care for our four legged patients.
  • Mon-Fri: 7:30am - 6:00pm
  • Sat: 8:00am - 1:00pm
  • *Alternating Sat: We Are Open To 5:00pm
  • Sun: Closed
  • Dr. Jeff Wittman

    Dr. Jeff Wittman opened Sierra Veterinary Care in 1994, following his dream of owning and operating his own small animal hospital.  Dr. Jeff grew up in the Sonora area, attended Sonora High School and graduated as valedictorian before being selected as œRegents Scholar and going on to UC Davis, majoring in animal physiology.  He then attended and graduated from the UC Davis School of Veterinary Medicine in 1989 and was again awarded the prestigious honor of Regents Scholar.  Dr. Wittman also was SCAVMA president and served on the UC Davis School of Veterinary Medicine Strategic Planning Commission.

    Although Dr. Jeff has a background in both large and small animal medicine, his passion for small animal medicine became his focus and pursuit.  As well as running a successful practice, he has special interests in orthopedic surgery, dentistry and oral surgery.  He has also completed a fellowship at the UC Davis School of Veterinary Medicine in the area of ultrasonography.

    Dr. Jeff currently co-owns the practice with his wife, Debbie, and they have two school-age children still at home on the "Wittman Farm".  Dr. Jeff serves on the local school boards and various other committees in the community.  He enjoys watching his children participate in the local 4-H clubs where he was once a member himself. 

    Years in Practice:
    Jan 01, 1989
    Education:
    UC Davis
  • Dr. Janet Halsebo

    Dr. Janet, a native Californian, is a graduate of the UC Davis Veterinary School.  After completing an internship in Small Animal Medicine and Surgery at the University of Georgia, she practiced in the San Francisco bay area for a decade before relocating to her family's cabin in Tuolumne County.  She has been a part of the Sierra Veterinary Care team for 13 years.  Besides dogs and cats, Dr. Janet'™s patients include rabbits, rats, and guinea pigs.  She has a special interest in oncology and endocrinology.

    She and her husband, along with their twin daughters, two dogs and two cats, enjoy life, hiking, and backpacking here in the Sierra Nevada mountains. 

    Years in Practice:
    Jan 01, 1983
    Education:
    UC Davis
  • Dr. Courtney Cook

    Dr. Courtney Cook, a life-long resident of Northern California, knew that she wanted to become a veterinarian at the age of 10. As an undergraduate, Dr. Cook majored in Animal Science at UC Davis and also worked on campus at the School of Veterinary Medicine as an emergency receptionist and an assistant for the Microbiology lab; both aiding in her success at the school. Upon completion of her undergraduate work, Dr. Cook then attended the UC Davis School of Veterinary Medicine, ranked #1 in our country. She earned her Doctorate in Veterinary Medicine in June of 2016. Since that time, she has been happily practicing at Sierra Veterinary Care and enjoying the benefits of living in the Sierra Nevadas.

    In her free time, Dr. Cook enjoys hiking, fishing, scuba diving; and spending time with her pups, “Phoebe and Doc”.
    Years in Practice:
    Jan 01, 2016
    Education:
    UC Davis
  • Dr. Justin Uhl

    Justin Uhl, DVM, MS, DACVS-SA graduated with a bachelor’s degree from the University of California, Davis in 2002. He went on to complete a Master’s Degree in comparative pathology with emphasis in bone biomechanics in 2008 and completed his Doctor of Veterinary Medicine Degree in 2010.

    After graduating from veterinary school, Dr. Uhl pursued a rotating internship followed by a surgery residency at the University of Minnesota.  During his residency he served for 2 years as chief resident and sat on the medical review board at the hospital. He finished his residency in July of 2014 and worked at a private practice in Sacramento before joining Vista in September of 2015. Dr. Uhl is trained in orthopedic, neurologic, soft tissue, and minimally invasive procedures and has a special interest in surgical oncology.

    Dr. Uhl has multiple publications in bone plate research, bladder stone trends, temporal lobe epilepsy, and osteosarcoma chemotherapy. He has done research in the areas of interlocking nails and cranial cruciate ligament disease. He has spoken at many continuing education events and is a reviewer for the Veterinary Surgery journal.  He also sits on the ACVS continuing education committee. When not in the hospital, Dr. Uhl enjoys spending time with his wife, Tracy and daughters, Haley and Madison. He also enjoys spending time outside and fly-fishing and has 3 dogs and 1 cat at home.

    Years in Practice:
    Jan 01, 2002