Mountain Aire Veterinary Hospital is proud to serve the Greater Frazier Park Area for everything pet related.  Our veterinary hospital is run by Dr. Diane Cosko, who is a licensed, experienced veterinarian.

Our team is committed to educating our clients on how to keep your pet healthy year round, along with preventative care, early detection of disease as well as optimal nutrition, caloric intake and exercise.  Mountain Aire Veterinary Hospital, Inc. stays on top of the latest advances in veterinarian medicine and technology and above all, remembers that all animals and pets need to be treated with loving care in every check-up, procedure or surgery.

buildingfrontSurrounded by the picturesque landscape of Tejon Pass, Mountain Aire Veterinary Hospital has provided the Mountain Communities with quality pet care since July 1989. We started out in a little tiny trailer on a dirt trail, moved to a 600 square foot facility and then eventually to our current location on 2 acres of property beautifully landscaped around the hospital, in turn surrounded by native plants and trees.

At Mountain Aire Veterinary Hospital, our mission is to offer the finest care possible while helping educate owners about the health of their companion and family member. We strive to help your pet with the ‘Lifelong Care’ initiative.

The collective dedication of our staff to offer only the best care possible secured Mountain Aire Veterinary Hospital as an accredited member of the American Animal Hospital Association (AAHA) 1991 – 2015! Our facility voluntarily left the AAHA organization in 2015. For more information on why we chose to withdraw from AAHA due to one particular standard that Dr. Cosko feels may potentially compromise the well being of some individual pets, please call (661) 248-7387. Our team will be happy to answer your questions.

We are confidently commmitted to maintaining these strict guidelines in order to ensure excellence in professional service and care for your valued pet. The staff at Mountain Aire encourages all pet lovers to continue their education about their pets and learn what they can do to contribute to their pet’s lifelong care. We will always do our best to answer your questions and if we can’t help you ourselves, direct you to those who know best.

Our staff routinely attends Continuing Education (CE) courses offered at UC Davis and many other facilities including the Western Veterinary Conference held in Las Vegas. In turn, our knowledge is passed on to our clients and patients.

Owners can learn pet specific emergency first aid through classes offered by the American Red Cross, shelters, and other organizations in your area.

Veterinarian on Duty Days and Hours:

M, T, Th, F: 9am to 6pm
Second (2nd) and Fourth (4th) Saturday: 9am to 2pm

Please note: Although the office is open for boarding drop-offs and pick-ups, prescription refills and pet food pick-up, there is no veterinarian on duty every Wednesday, nor the first (1st) and third (3rd) Saturdays of the month. We refer to Kern Animal Emergency and Urgent Care at (661) 322-6019 to help with our cases during the off hours and we work together to allow for around-the-clock care if Mountain Aire Veterinary Hospital is not open.

On Wednesdays, the office will be closed for lunch for 1 hour sometime between 12 noon and 3 PM.