Our caring and compassionate veterinary care team!
Meet the Veterinarians & Team of Emergency Veterinary Clinic of Tualatin in Oregon. We’re pleased to provide exceptional vet care for your pets!
Please call us at 503-691-7922 to speak to one of our caring veterinary staff members!
Dr. Jo-Anne Wisniewski
Practice FounderDr. Wisniewski’s undergraduate degree is from the University of Washington where she…
Dr. Jonathan Wisniewski
Practice OwnerDr. Jonathan Wisniewski received his undergraduate degree (Bachelors of Arts) from…
Dr. Andy Nuijens
Associate VeterinarianDr. Andy Nuijens joined the EVCOT staff in August of 2008. He came on board full-time in…
Dr. Daniel O'Loughlin
Associate VeterinarianDr. Daniel O’Loughlin has been with EVCOT since January of 2000. Dr. Dan graduated from…
Dr. Jamie Warren
Associate VeterinarianDr. Jamie Warren was raised in the beautiful, scenic community of Corbett, Oregon. Located…
Dr. Nicole Chamberlain
Associate VeterinarianDr. Nicole Chamberlin has been with EVCOT since 2005, working at another day practice in…
Dr. Pamela Williams
Associate VeterinarianDr. Williams received her Bachelors of Science from Oregon State University in 1974 and…
Dr. Reza Sadreddin
Associate VeterinarianDr. Reza Sadreddin received his Associate degree in Veterinary Technology from Portland…
Robert SiefkenDr. Rob Siefken joined the EVCOT emergency team in August of 2018. He graduated from…
Dr. Kerri Jackson
Relief VeterinarianDr. Kerri Jackson works full-time at her day practice in Sherwood, and she keeps her ER…
Dr. Kieth Sierbinski
Relief VeterinarianDr. Keith Sierbinski earned his Doctorate of Veterinary Medicine from the University of…