About Us

Welcome to the Emergency Veterinary Clinic of Tualatin (EVCOT).

We have been providing exceptional emergency care for Oregon and Southwest Washington area pets since 1995.

EVCOT doctors see many types of small animals, including dogs, cats, rabbits, rodents, pocket pets, and birds. We do not see fish or reptiles.  Not all of our doctors see every type of animal, so please call ahead to make sure there is a doctor on duty that can see your birds, and pocket pets.

We do not see large cats, such as bobcats, cougars, or servals. We do not see livestock, primates, opossums, raccoons, skunks, coyotes, foxes, or bats. If you have an unusual animal not on this list, please call ahead to make sure there is a doctor on staff that is able to see your pet.

Dr. Jo-Anne Wisniewski graduated from Cornell University in 1978, and Dr. Pam Williams hails from Washington State University, class of 1978. Dr. Dan O’Loughlin graduated in 1992 from University of California, Davis. Dr. Andy Nuijens graduated from Purdue University, class of 2000.  Dr. Jonathan Wisniewski graduated in 2011 from Oregon State University.

Several other area veterinarians work relief shifts for us as well. We feel this adds a whole new dimension to the scope of care we are able to provide, bringing in fresh ideas and methods of practice regularly.

EVCOT has fourteen full time certified technicians, many with more than twenty years of experience. We also have twenty part time technicians (some of whom you may see at your regular veterinary office), kennel assistants, and receptionists.


Location Hours

This location is open 24 hours a day/
7 days a week

Open 24 hours