Dr. Ganzer grew up in Kailua and attended Lutheran High School. His lifelong dream was to be a veterinarian; he loved animals from a very young age. Growing up, he always had animals: Jackson Chameleons, turtles, salamanders, cats, and dogs. By the time he was 12, he was already hand raising Love Birds. After high school, he continued to the University of Hawaii and completed his Bachelor of Arts degree in Biology. Pursuing his dream, he went on to Iowa State University and completed his Doctorate in Veterinary Medicine.

After graduating in 2011, Dr. Ganzer returned home to Oahu to start working his dream job as a veterinarian. He practiced at Aloha Animal Hospital for many years before joining the Oahu Veterinary Clinic ohana. He loves to spend time with his wife and four children, going to church, and of course, spending time at the beach. He desires to offer the best quality medicine and services all animals and animal lovers deserve.


Dr. John Kaya is a graduate of Moanalua High School. He graduated from the University of Hawaii with a Bachelor of Education in 1989, then graduated from University of Minnesota with his Doctorate of Veterinary Medicine in 1999. During Veterinary school, Dr. Kaya did an externship at the San Diego Zoo fostering his interest in exotic animal medicine. He currently treats dogs, cats, rabbits, chinchillas, guinea pigs, rats, mice, Jackson chameleons, turtles, and birds. On occasion, he has even seen goats, penguins, and flamingos.

Dr. Kaya is a member of the American Veterinary Medical Association, Hawaii Veterinary Medical Association, Association of Reptilian and Amphibian Veterinarians, and the Association of Exotic Mammal Veterinarians. He is also a former Chairperson of the Board of Veterinary Medical Examiners for the state of Hawaii.

Besides working in the hospital, Dr. Kaya has been very active in the community. He has visited schools educating children on proper pet care, was a fixture on the KHON morning news pet segment, and wrote articles for our local MidWeek newspaper. In his free time, Dr. Kaya enjoys basketball, skin diving, and singing karaoke with his friends and family. He loves spending time with his wife Jan and two children, Jada and Jake. Dr. Kaya’s immediate family includes two Pomeranians, Eevee and Arya, and a turtle named Lil’ Dude.


Dr. Choy was born and raised in Mo’ili’ili and graduated from Maryknoll School. She has a BS in Biochemistry from Santa Clara University and earned her veterinary degree from Purdue University in Indiana. Growing up she always wanted dogs but her parents convinced her that rabbits were the best for apartment living. She volunteered at the Hawaiian Humane Society to spend as much time with animals as possible.

After finishing her education, Dr. Choy lived in Seattle for 6 years where she worked at Rainier Veterinary Hospital and volunteered at the Seattle Humane Society and PAWS. She decided to return to the islands to be with her family, and brought along her fur babies: Axle, a pitbull mix, and Nugget, a chihuahua-terrier.

Dr. Choy is currently an officer in the Honolulu Veterinary Society, which holds educational and social events for Oahu veterinarians. Her specific areas of interest include internal medicine and behavioral medicine. She is an advocate of fear-free positive reinforcement dog training. She enjoys playing tennis with her husband, taking her dogs to the beach, hiking, and traveling (especially to National Parks).

Dr. Kendra Antonides

Dr. Antonides grew up in Toronto, Canada, where she developed a love for animals while helping her grandfather on his pig farm, working at pet hospitals, and volunteering with wildlife in India and Africa. After receiving her Doctor in Veterinary Medicine degree from Washington State University in 2018, she practiced at a pet hospital in Tacoma, Washington, where she met her kama’aina husband. In 2021 they decided to move back to O’ahu to be closer to his family in Pearl City. Dr. Antonides is especially interested in surgery, helping clients understand how to keep their pets healthy and happy, and tackling complex medical cases.

Outside of work, Dr. Antonides participates in swing dancing regularly and enjoys swimming, rock climbing, hiking, painting, and eating local food. She has a fluffy tuxedo cat named Nanook, who enjoys walking on a leash and watching birds and geckos outside. Dr. Antonides’ calm and gentle character will be there for your furry family at every life stage and she looks forward to getting to know you and your animals better with every visit.