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Meet the Doctors

  • Mike Mizumoto, DVM
    Hospital Director and Owner

    Dr. Mike Mizumoto, hospital director and owner, was born and raised in Seattle, WA. He received his B.S. degree (1971) and Doctorate in Veterinary Medicine (1975) from Washington State University. Upon graduation, he was employed as an associate veterinarian at Twin Lakes Veterinary Hospital for six years before taking ownership in 1981. His professional interests include: soft tissue, orthopedic, and laser surgery, dermatology, dentistry and ear disease. During his spare time, Dr. Mizumoto enjoys golf and traveling. He is married to Margaret and has 3 children, Ryan, Robert, and Andrea and four granddaughters.

  • Diane Driscoll, DVM
    Medical Director


    Dr. Diane Driscoll became part of the Twin Lakes Veterinary Hospital team in 2006. She received her Bachelor's degree in Biology from Arizona State University and her Doctorate in Veterinary Medicine from Colorado State University. As medical director, Dr. Driscoll has special interests and skills in veterinary acupuncture, pain management, and treating exotic animals. Originally from Mesa, Arizona, she relocated to Seattle with her husband Keith, for the outdoor activities and career opportunities. Her first passion is kayaking, but she also enjoys playing soccer and rock climbing. Other members of her family include her son Jack, cats Toey and Twinkle and her bearded dragon Drizzt.

  • Robert Mizumoto, DVM

    Dr. Rob Mizumoto was raised in Federal Way. He graduated from the University of Portland with his Bachelor degree in Biology and earned his Doctorate in Veterinary Medicine from Washington State University in May 2012. His professional interests include surgery, internal medicine, and diagnostic imaging. Dr. Rob is an avid Seattle sports fan - especially for the Seahawks and Sounders - and enjoys athletics, especially crossfit, soccer, hiking, and snow skiing. He currently resides in Seattle with his wife Laura, daughter Emiko, and tripod cat, Potsticker.

  • Eunkyung Park, DVM

    Dr. Park received her Bachelor's degree in Textile Engineering from HanYang University and her Doctorate in Veterinary Medicine from Kangwon National University in South Korea. After graduation, Dr. Park and her husband (Jong) decided to start life in the beautiful Pacific Northwest. Dr. Park obtained her Washington Veterinary License in 2003 and has since been practicing in WA. Her interests in the veterinary sphere include internal medicine, preventative medicine, and diagnostic imaging. Dr. Park enjoys cooking, sewing, traveling, and spending time with her daughter Allison, Bently and Tigger, her dogs, and Navya, her cat.

  • Gina Au, DVM

    Dr. Gina Au was born and raised in Honolulu, Hawaii. She received her Bachelor’s degree in Biology at Duke University and Doctorate in Veterinary Medicine at Washington State University. She moved to Western Washington in 2019 to join Twin Lakes Veterinary Hospital. Her professional interests include internal medicine, pain management and surgery. In her free time, she enjoys hiking, paddle boarding, and playing with her cat May.