Our Doctors

Tia Greenberg


    Dr. Tia Greenberg graduated from Ross University, School of Veterinary Medicine in 1992. Following veterinary school, she completed post-graduate studies in Avian and Exotic Pet Medicine and Surgery at the prestigious Animal Medical Center in New York City. After 9 years of practicing medicine with one of the most renowned exotic animal veterinarians in the country, Dr. Greenberg opened the Westminster Veterinary Group. Dr. Greenberg is a member of the American Veterinary Medical Association (AVMA), the California Veterinary Medical Association (CVMA), American Association of Veterinary Dermatologists (AAVD), and the Veterinary Emergency and Critical Care Society (VECCS). She previously served as Adjunct Professor for the Western University of Health Sciences College of Veterinary Medicine, mentoring Veterinary students in canine, feline and exotic animal medicine. She is an active member of the Association for Avian Veterinarians, and the Association for Reptile Veterinarians. She has published numerous articles in veterinary journals and textbooks on exotic animal medicine.

    Tara Drake-Hueston


      Dr. Tara Drake-Hueston is a graduate of Princeton University and Tufts’ Cummings School of Veterinary Medicine. Although Tara enjoys veterinary practice with a variety of small and large animals, she has a special interest in exotic animal medicine, shelter medicine, and acupuncture. Dr. Drake-Hueston is a member of the Southern California Veterinary Medical Association and the California Veterinary Medical Association.

      Dr. Drake-Hueston was born and raised in Arizona in the company of livestock and many, many dogs. She enjoys hiking, camping and observing wildlife, and has enjoyed participation in wildlife projects over the last few years. She is a sculptor and comic book collaborator in her free time, and enjoys volunteering at spay and neuter clinics and working with Westminister Animal Group Services (“WAGS”). She loves her wonderful WAGS dog, “Conan.”

      Dr. Kim Tran


        Dr. Kim Tran is the newest addition to the Westminster Veterinary Group. While she primarily raised parakeets as a child, it was a very special mini schnauzer named Shelly who inspired her to enter the veterinary profession. Shelly passed at the age of 21, soon after Dr. Tran found out she was accepted into veterinary school. In 2014, she graduated with a DVM degree from the Tufts Cummings School of Veterinary Medicine.

        Dr. Tran has years of varied experience working with animals, from general practices, community clinics, animal shelters, and wildlife rehabilitation centers. Her professional interests include exotics/wildlife, geriatric medicine, dentistry, dermatology, ophthalmology, and shelter medicine. When she’s not working, Dr. Tran enjoys DIY projects and hopes to learn blacksmithing and glassblowing soon. She spoils her schnauzer mix named “Ushi.”

        Dr Retting


          Dr. Christina Retting was born and raised in the Los Angeles area before completing her undergraduate degree in Animal Science at Cornell University in Ithaca, NY. She happily returned to Southern California to attend the College of Veterinary Medicine at Western University of Health Sciences where she spent time as a student at Westminster Veterinary Group and later received her DVM degree in 2016. After graduation, Dr. Rettig completed a one year rotating small animal internship at Pet Specialists of Monterey on California’s Central Coast. In her spare time, Dr. Rettig enjoys hiking, baking, and spending time with her two pet rabbits: Watson and Cricket. 

          Dr. Nicole Dielo

          Relief Veterinarian

            Ann Reed



              Dr. Reed graduated from Kansas State University in 1991. In 1994 she completed her Veterinary Radiology Residency and became a boarded diplomate of the American College of Veterinary Radiology in 1995 at the University of Missouri, Columbia. She has been Westminster Veterinary Group’s consulting Veterinary Radiologist since 2001. Dr. Reed enjoys running, water skiing, wakeboarding, basketball, soccer, and biking in her spare time.
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