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Welcome to Twin Lakes Veterinary Hospital
Your Veterinarian in Federal Way, WA
Call us at 253-839-7880



In case of an after-hours emergency contact:

Summit Veterinary Referral Center (253) 983-1114
Blue Pearl (Tacoma) (253) 474-0791
Blue Pearl (Renton/Seattle) (206) 364-1660

Twin Lakes Veterinary Hospital

1060 SW 320th St

Federal Way, WA 98023

Office Hours


8:00 am-7:00 pm


8:00 am-12:00 pm

2:00 pm-7:00 pm


8:00 am-7:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-2:00 pm



Meet the Veterinarian

  • 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.

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  • 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 and German from Arizona State University and her Doctorate in Veterinary Medicine from Colorado State University in May of 2006.

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  • Robert Mizumoto, DVM

    Dr. Rob Mizumoto earned his Doctorate in Veterinary Medicine from Washington State University in May 2012 and attended University of Portland for his Bachelor degree in Biology. He enjoys all types of surgery, internal medicine, and has a special interest in ophthalmology.

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  • Valerie Carlin, DVM

    Dr. Valerie Carlin joined our team in 2014 after graduating from the University of California Davis. She earned her Doctorate in Veterinary Medicine after completing a Bachelor degree in Neurobiology, Physiology and Behavior.

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Helpful Reading

Veterinary Topics


Hear From Happy Pet Owners

  • "Excellent care for my dogs. The staff is friendly, compassionate,knowledgeable, and helpful. My dog Smokey was diagnosed with diabetes. I was very nervous about giving the medication and monitoring his treatment. The doctor and tech were very helpful- they spent over an hour answering all of my questions and walking me through the necessary treatment. I left feeling confident in being able to give him insulin at home."
    Anika F.

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