Your pet’s happiness comes first.
Our mission is to provide an environment that will always nurture, preserve and celebrate the power and the spirit of the human-animal bond. It is our never-ending dedication to our community and one another that is at the heart of that environment.
Since 1991 we have been proudly certified by the American Animal Hospital Association (AAHA). Our hospital is equipped with digital radiography, ultrasound, blood analyzers, and surgical and dental facilities to help our doctors diagnose and treat most problems as quick as possible. We also maintain excellent relationships with nearby specialists should your pet need referral for specialized care.
Who are we?
Hello! We’re Oswego Vet, a full-service veterinary hospital for all your pet’s health and happiness needs. Scroll down to get to know us a little better. We look forward to seeing you soon!
We’re dedicated to your pet.
Our team understands how stressful it can be when our pets are ill, injured or aging, and they want to be there for the pet, and the owner.
Dr. Amy Tongue
Owner and Veterinarian
Dr. Tongue was an OVH doctor since 2005, and then in 2010 she purchased OVH and is continuing the tradition of medical excellence, extraordinary client service and a deep appreciation of the human-animal bond.
Amy grew up in the San Francisco Bay area and received her undergraduate degree in Animal Physiology from UC San Diego. She graduated from veterinary school at the University of California, Davis in 1998 and spent the next three years at a practice in rural Northern California working on a large variety of large and small animals.
After meeting her future husband, a Lake Oswego native, and joining him in Oregon in 2002, Amy began practicing in Lake Oswego. She and her husband, Tom, have two boys, two dogs (Piper and Ruby), two parakeets, and random foster dogs or cats at any given time. Amy’s medical interests lie in surgery and general medicine, though she enjoys the diversity that veterinary medicine has to offer. In her free time, she enjoys exploring the Oregon trails on horseback, reading, and hiking.
Dr. Deb Ward
With OVH since 2012
Dr. Ward was born and raised right here in the Pacific Northwest, in Salem. She obtained both her Bachelor degree in Veterinary Science and her doctorate degree in veterinary medicine from the University of California, Davis. She moved back to Oregon to practice medicine and to raise her family.
Besides her husband and three cute kids, her family includes an Arabian horse, two dogs (a pit bull mix and a Chinese crested), one calico cat with extra toes, and a blue-fronted Amazon parrot.
She enjoys small animal medicine and has been treating small exotics and avian species for the last 16 years (those pets with fur or feathers). In her rare leisure time, she enjoys hiking, travel, kayaking in flat water, and reading. She also volunteers at a local elementary school.
Dr. Kathy Sandifer
Kathy grew up with dogs and horses on a citrus farm in central Florida. She earned a B.S. in biology from Davidson College in North Carolina and her veterinary medical degree from the University of Florida.
Upon graduation, Kathy lived in Japan for 6 months before moving to Gig Harbor, WA where she practiced on both family pets and farm animals for over 3 years. In 1992, Kathy moved to Portland with her soon to be husband, Mark and started practicing here at Oswego Veterinary Hospital.
Kathy’s family includes her husband Mark, son Austin, daughter Elle and wonder dog, Penny. Kathy enjoys living in the Northwest and in her spare time can be found hiking, cross-country skiing, or racing dinghy sailboats with her husband.
Dr. Pam Duggan
With OVH since 2012
Dr. Duggan was born and raised in Northern California and attended UC Davis both as an undergraduate and a veterinary student. She obtained her veterinary degree in 1996 and moved to the fine town of Red Bluff to practice mixed animal medicine. Here she met Dr. Tongue, where both they and their horses became good friends and riding buddies.
She emigrated to Portland in 2001 and started practicing exclusively small animal medicine. In 2011, she began training in veterinary acupuncture, for another approach to patient care and the challenges of opening up her mind to something new and different. Having successfully completed the course and examinations, she’s now treating our patients with acupuncture! She would like to take complementary medicine further as she becomes proficient, exploring Traditional Chinese Veterinary Medicine which includes herbal and nutritional therapy.
On a personal note, she has sweet Labrador named Clementine and the newest member of the family “Blinky”, a rescue kitten with one eye, but it doesn’t slow her down one bit. She and her husband Dan are self-enslaved by perpetual house renovations, but she also enjoys horseback riding, hiking, gardening, cooking, and reading.
Dr. Melanie MacClanathan
VeterinarianDr. MacClanathan began her relationship with OVH in 2014 as a Veterinary Assistant and it was clear from the beginning that she had a calling to be a veterinarian.
Melanie is now a new graduate from Oregon State University with a special interest in surgery, ultrasonography, nutrition, and behavior. She is excited to continue the relationships she has formed with OVH clients and patients in years past, and looks forward to building many more.
Melanie lives in Lake Oswego with her husband Michael, their cat Max, and the newest addition to the family, an adorable Golden Retriever-Husky puppy named Wall-e.
Jessie Merritt CVPM, SPHR
With OVH since 2002
Jessie was one of those children who seemed to gravitate to animals from the day she was born. Bringing home “stray” animals and nursing injured wildlife was a routine part of her childhood.
Since Jessie has held almost every position in the profession, she believes it offers her a valuable insight and perspective of team life in the trenches that has enhanced building successful relationships with her team and peers. In 2009 she became a Certified Veterinary Practice Manager and in 2013 she earned her SPHR certification.
Jessie is active within one of the most well respected professional veterinary organizations for management called the Veterinary Hospital Managers Association. Jessie also enjoys participating in various veterinary social networks in addition to helping facilitate the monthly meeting and general organization of a group of local Practice Managers whose insight, wisdom and wit she greatly admires.
In 2011, she was selected Veterinary Practice Manager of the Year by the Oregon Veterinary Medical Association!
Personally, she spends her time on her country property tending the garden, chickens, and turkeys as well as one Giant Schnauzer “Cajun” (an 80-pound juvenile delinquent) and “Hazel,” the Caucasian Ovcharka (the princess of the group), a herding dog mix rescue named Tucker, and the baby of the group is “Cowboy” the Australian Cattle Dog.
If you ask Jessie about life, she will say, “One of the things that will always bring me my greatest sense of fulfillment is spending my days working side by side with people I truly admire, that share the goal of helping our clients take the best possible care of their much-loved pets. All of that and puppy breath too – it doesn’t get much better than that!”
Lead Client Care Coordinator
With OVH since 2013
Stephanie grew up in Southern Oregon and acquired a love of animals from her father who is now a retired wildlife biologist. Stephanie began working with animals before she was out of high school, pet-sitting for neighbors, working with horses and goats, and volunteering at a local animal shelter. After high school, she moved on to the University of Oregon where she received a Bachelor’s degree in Women and Gender Studies in 2008. While in Eugene, she took up horseback riding on the UO Equestrian Team.
Upon moving to Portland in 2005, Stephanie started working at a local doggie daycare facility as well as entering a working student program with a horse trainer at a hunter/jumper equine facility. After a couple years, she entered the veterinary field and fell in love with the opportunity to develop relationships with pet owners and their companions.
If she’s not at work or at the barn, she is most-likely with her two rescue dogs Patrick and Huckleberry Finn. Together, they spend a lot of time playing at the dog park, hiking, walking around Portland, or just lounging around the house.
With OVH since 2016
Allison grew up in rural Beavercreek Oregon where she received an early start on enjoying mother nature, all animals, and adventure.
She currently has a host of four-legged loves in her life, including; two horses, Smurf her gelding and his equine girlfriend Molly, in addition to the hooved family members Allie has 3 dogs and 2 cats. The dogs are; Abby and Marjorie the sweet senior sisters who are both entering their teen years, and mischievous Cali the Corgi, the youngster of the canine bunch. Last but never least are Snickers and Nora, the beautiful feline purr buckets of the household.
When Allie isn’t working hard and cracking jokes at OVH she loves spending time outdoors, taking the dogs on adventures and riding horses.
Thanks to Allie’s military husband Kyle she has enjoyed traveling and hopes to never stop.
Her favorite part of veterinary medicine? “There is always room to grow, the learning is endless, and being able to take care of animals is wonderful”.
With OVH since 2010
Stephanie grew up on a small farm in NW Washington where she was very active in the Future Farmers of America organization as well as 4-H. She moved to Portland in 2001 to attend Portland Community College for their Certified Veterinary Technician program and became a CVT in 2003.
She enjoys all the wonderful sights and sounds that the Pacific Northwest has to offer: hiking, walks, dog parks, bike riding, and snowboarding. Stephanie’s artistic side comes to life as she works with glass, photography, and crafts.
Stephanie is a dedicated mom to her two-legged child, Ash. Her family also includes Troubles the cat, a senior citizen Border Collie named Panda, a rescued Pit Bull named Eva, and the most recent addition to the family, a goofy Rottweiler called Cyrus.
With OVH since 2014
Ashley was born in beautiful Palm Springs California and grew up in Las Vegas Nevada.
She studied animal science at Texas A&M and has a lifelong love of animals, which lead her naturally into veterinary medicine. Ashley is currently in school with the goal of attaining her veterinary technician certification.
Ashley has one adorable dog named Zelda, whom she adopted in College Station Texas.
In her spare time Ashley enjoys watching her stories (you’ll need to ask her about that), enjoys the Portland food scene while chasing the occasional sunshine, and she has mad crocheting skills!
Ashley’s passion for animals doesn’t stop at OVH; she volunteered at the at Maetaeng Elephant Park in Chiang Mai, Thailand for 6 months, The Oregon Zoo for 1 year, and has hopes to continue working with wildlife in the future.
With OVH since 2005
Courtney was raised with animals and remembers them as always being an integral part of the family. Courtney currently has two mischievous kitties named “Hy -Purr” and “Spaz.”
Courtney came to us with a heart filled with compassion and an appreciation for the human-animal bond that we all share. She states, “It has truly been a great experience being able to work with the animals and build relationships with their human companions, our clients.”
Courtney’s main professional goal is to continue to expand her knowledge base in the field and continue to offer the excellent patient care she is known for.
Outside of work, Courtney enjoys family time with her husband Dan. She can also be found painting and drawing or relaxing with friends and family. In January of 2014, Courtney and her husband welcomed their first two-legged child into the world, and her name is Hayden.
With OVH since 2017
Bio coming soon!
With OVH since 2015
Malissa has lots of furry company at home including Miss Julep her loyal and loving German Shepherd, Jobu the crazy prey driven Bloodhound, and Skooter her sweet soul kitty ♥
As the photo implies, she enjoys the outdoors, including; snowboarding, biking, rollerskating, exploring the Pacific Northwest and training her pups new tricks.
Malissa has been working with animals for over 3 years, mainly in doggy daycare and boarding and has enjoyed learning the intricacies of animal behavior and body language. Malissa says that training for her current veterinary assistant position has helped her to realize her passion and she has loved every minute of this exciting new chapter of her life in veterinary medicine. Malissa loves being part of a team that is positive and patient-focused, where she can treat every animal with compassion and where she can take the time to get to know a pet before working with them.
With OVH since 2017
Melissa grew up in a small town in southern Michigan and knew from an early age that she wanted to work with animals. She graduated from Northern Michigan University in Marquette, MI with a bachelor’s degree in Zoology and then moved to Portland in February of 2017. She plans to attend a Veterinary Technician program to become a CVT.
Her favorite responsibilities at Oswego Veterinary Hospital are caring for sick patients and educating our clients.
Her furry family includes Kali, a 10-year-old lab/mastiff mix and Freyja, an 11-year-old Australian Shepherd mix. In her free time, she enjoys discovering new hiking spots around Portland, going to the coast, and spending time with her critters.
With OVH since 2016
Born and raised northwest of Tokyo, Haruna has spent the past three years in Portland after a long journey from the South. She has lived in many states including Tennessee, Texas, Oklahoma, North Carolina, and Arkansas.
There’s never been a time when she’s not been surrounded by animals. Haruna has taken care of– sometimes an abundance of– fostered cats and dogs, and has even raised chickens! Her main drive is to help all of the kennel borders feel cozy– like a home away from home.
These days she can be found in the Southwest Waterfront cuddled-up napping with her cat Punkin, who she fell in love with while nursing her back to full-health at OVH.
When there’s time, Haruna likes to try new restaurants in Portland and is a frequenter of the Columbia River Gorge area.”
Chelsea has been a West coast girl all of her life. She currently shares her home with Stoli the Australian Shepherd mix, Cicero the Keeshond, and the feline member of the family; Oberyn.
Chelsea is a dedicated animal caretaker here at OVH and she enjoys the variety of pets she gets to work with. The personalities and breed characteristics are fascinating and she has learned a lot about body language and how pets communicate.
Her own dogs can be a little anxious and so Chelsea takes great pride in creating a safe and comfortable home away from home for boarding guests.
When Chelsea isn’t working you might find her enjoying her own furry family members, watching horror movies, or sewing.
With OVH since 2000
Eve has been grooming since 2003 and finds her work extremely interesting and rewarding. Outside of work, Eve spends most of her time with her husband and animals. Eve shares her home with two adorable cats.
When time and finances allow, Eve, her husband, Nathan, and various family members love to travel and experience new sights. They have been all over Europe several times and throughout the Western United States as well. As life moves forward she hopes to continue to explore this wonderful world and to spend time with the animals who inhabit it with us.
With OVH since 2008
Kristen is a Portland native who enjoys sampling Portland’s vast options of dining and micro-brews.
She began her grooming career here at OVH many years ago and although she loves literally all dogs, some of her favorite breeds to groom include West Highland White Terriers and Cockapoos, but she really just loves helping to make adorable, happy, and healthy pets.
Kristen’s pride and joy is her Chihuahua, Chyna – more accurately “Miss Chyna Bo Byna”. Then there is the handsome “Orange Kitty”, who is, well, an adorable orange kitty ♥
Kristen enjoys competitive pool shooting and dabbling in all kinds of crafts.
With OVH since 2017
Sarah was born and raised in Portland Oregon. She is a life long animal lover. She has been working with animals since 2012. She started working in a doggy daycare, then found a passion for the field of grooming. She looks forward to learning as much as she can from the talented groomers here at OVH.
Sarah and her husband Chris share their home with three fur babies: a Schnauzer mix named Elphaba, a Pug named Horace, and cat, Tamino. They also have a beautiful little girl named Wednesday.
When Sarah is not working she loves spending time with her family, traveling, gardening, and singing.
We love new clients!
Call to schedule an appointment or fill out our New Client Registration Form. A member of our team will be in touch to help you schedule your first appointment after we receive your information. We look forward to meeting you and your pets soon!
Tues: 7:30am – 8:00pm
Wed: 7:30am – 6:00pm
Thurs: 7:30am – 6:00pm
Fri: 7:30am – 6:00pm
Sat: 8:30am – 5:00pm
Learn more about our services!
Oswego Veterinary Hospital is made up of three examination rooms, an operating room, x-ray room, laboratory/pharmacy, reception area, boarding suites, a grooming spa and beautiful gardens.