Call Us Today

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


Founded in 1969, Twin Lakes Veterinary Hospital has long been a center for exceptional veterinary care. As an American Animal Hospital Association (AAHA) certified clinic, we pride ourselves in our commitment to excellence in veterinary medicine. Over the years, our hospital has expanded and remodeled its facilities - staying current with new technologies and services.

We believe in happy, healthy pets, and we value preventative medicine as it can extend the life of your pet. Regular check-ups help detect subtle changes in your pet's health before major problems occur. We deliver individualized treatment for every pet and we strive to make every visit a positive experience.

Thank you for giving us the opportunity and entrusting us with your pet's health management. We are available during business hours for questions regarding all aspects of pet health, and feedback is always welcomed. You and your pet will be treated as family here at Twin Lakes Veterinary Hospital, and will receive the best care that the veterinary profession has to offer.

Again, thank you for choosing us, and welcome to our Twin Lakes Veterinary Hospital family!


Dr. Michael Mizumoto and the Staff of Twin Lakes Veterinary Hospital

Sign up to get our mobile app - PetDesk

Make appointments, request medication refills, receive automatic reminders, and much more!


Shop our online pharmacy

24 hour shopping, refill reminders, auto ship on recurring food, medications, and/or supplements, and much more!


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.

    Read More
  • 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.

    Read More
  • 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.

    Read More
  • 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.

    Read More


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.

Featured Articles

Read about helpful topics

  • Lost Pets

    Has your pet wriggled their way through the fence or dashed out the front door? When searching for your lost pet, make sure you include these steps in your hunt. ...

    Read More
  • Should You Leave Your Cat Alone for a Long Weekend?

    So you have a trip planned for the weekend, but what should you do with your cat? Learn how to best care for your cat while you're away. ...

    Read More
  • Flea and Tick Season

    Want to protect your pet from fleas and ticks? These tips can help. ...

    Read More
  • Summer Grooming Tips

    Want to keep your pet cool and comfortable this summer? A few changes to your normal grooming routine can help. ...

    Read More
  • What to Do If Your Pet is Stung

    Don't get us wrong, we love the bees! But we don't love when our pets get stung. Follow our tips to treat and prevent bee stings on your furry best friend. ...

    Read More
  • Tips for Traveling With Your Pet

    Do you dread hitting the road with your pet? These tips may make the trip more comfortable and enjoyable for you both. ...

    Read More
  • 6 Questions to Ask At Your Senior Pet's Next Check Up

    Want to keep your senior pet healthy and happy? Ask these six questions at your pet's next check up. ...

    Read More
  • Why the Controversy About Pet Vaccinations?

    As with anything, pet vaccinations can be too much of a good thing. Similar to parents who are learning more about vaccinations for children, veterinarians and pet owners alike are beginning to question some of the standard wisdom when it comes to protecting pets. There are certain fatal diseases against ...

    Read More
  • Pet Clothes: A Fashion Statement or a Necessity?

    There is nothing cuter than a pet in a colorful sweater, but do our furry friends really need to wear clothing? Although clothing is not a necessity for every pet, some animals benefit from a little extra protection during cold or damp days. Others enjoy wearing festive clothing during holidays or other ...

    Read More
  • Introducing a New Pet to Your Current Ones

    Pet Proofing Your Home Introducing your new pet to your current one is only a single part of the equation relating to taking a new pet home. You also have to make sure your new pet is comfortable in your home, which is a foreign environment to the animal. Like humans, animals can experience high levels ...

    Read More

Newsletter Signup

Sign up for more articles