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Meet the friendly staff at Happy Valley Veterinary Hospital!

Image of Dr Caldwell

Sara Caldwell, DVM

Practice Owner

Dr. Sara Caldwell grew up in Atlanta Georgia with her mom and step-dad, one brother and a house full of pets. She is the owner of the practice and its primary veterinarian. She always wanted to be a veterinarian since she was a little girl rehabilitating tiny birds that fell from their nest and putting pretend casts on her teddy bears. She is thoroughly fulfilled by relieving the suffering of animals and is honored to be able to do so as a livelihood. She enjoys horses, specifically dressage, although she has evented, foxhunted and played polo. Her favorite dog breeds tend to be brachycephalic (like pugs and bulldogs) but she has also owned and loved dachshunds, Danes, and heelers. She currently shares her home (and her heart!) with a pug, a Clyde cross horse, and her very sweet small child :)

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Katie Kralik, DVM

Dr. Katie Kralik grew up in Lincoln, Nebraska and graduated from the veterinary school at Iowa State University in 2012. She started working in central Washington after graduation, then moved to Portland in May of 2015 with her dog and 2 cats. She and Boone (the pit bull) love to hike and ski, and she also enjoys biking, floating on water, reading, and good food. Dr. Kralik is excited about her career every day, and loves that she gets to make the lives of animals and their people better.

dr pflaumKevin Pflaum, DVM

Dr. Kevin Pflaum grew up in the suburbs of Chicago, Illinois, and received his undergraduate degree from Grinnell College, in Iowa. He developed a passion for veterinary medicine through his volunteer work with the local animal shelter in Iowa, and remains inspired by the remarkable qualities of animals to help them every day. He graduated from the UC Davis School of Veterinary Medicine in May 2017, and is thrilled to be joining Happy Valley Vet Hospital. He is passionate about practicing high quality medicine and surgery, and his special interests include strengthening the human-animal bond, reducing stress in veterinary visits, behavior, and feline medicine. He moved to Portland with 1 dog and 1 cat, and (aside from giving them cuddles) enjoys hiking, reading, film, sports, and eating local foods. He sincerely looks forward to providing your family the highest quality care.

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Practice Manager

Michanne grew up in Cathlamet, Washington. She has been in the Human Resources field for 8 years and has always had a passion for animals. Since moving to Portland in 2011, Michanne has worked with many organizations to promote the well-being of animals. She has two disabled cats, Peggy, who had her front left leg amputated by Dr. Kralik due to a previous injury, and Ray Charles, who has been blind since birth. Both were rescued through the Save A Life Kitten Adoption program that Happy Valley Vet Hospital runs inside the hospital!

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Front Desk Manager

Megan was born in Virginia but, due to her family's military background, she moved around a lot until settling in Oregon in 2001. Megan has loved animals for as long as she could remember. She always knew a career in animal health was her calling. In high school she worked part time at an animal hospital before going away for college. She was certified as a groomer since 2008. After moving to Happy Valley she made the career change to a veterinary assistant at HVVH and absolutely loves it! Megan is married with one child and two pets - a cat named LuLu and a dog named Ifrit. In their spare time they love to go hiking, beach trips, dog parks, etc.

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Katie was born in Germany and spent most her childhood on the east coast. She is a total cat lady- ask her about her cats! She has three at home but is always looking for more to add to her collection. She’s been a veterinary receptionist for over 4 years and enjoys getting to know clients and their furry companions. In her spare time she likes hiking, reading, and cooking. She lives in Sandy with her fiance, cat hoard (Beavis, Brisby, and Vesuvius), and a sweet mini Aussie named Arya.

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Ebony was born in Angeles City, Philippines and spent a large portion of her early life moving around due to her father’s military (Air Force) background. She graduated from The University of Nevada Las Vegas in 2013 with a Bachelor’s in Biology: Pre-Professional and moved to Oregon in late 2014.

Ebony has loved animals her entire life and knew that her career had to involve working with them. After spending some time volunteering, she was picked up by HVVH as a Tech Assistant and could not be happier gaining the lab and hands on experience that will further her career. Currently, Ebony lives in Milwaukie with her boyfriend Justin, their two ferrets (Zoro and Korra) and corn snake (Zuko). She enjoys spending her free time reading, crocheting, cross stitching, watching Japanese anime and playing video games.

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Karla grew up in Oregon City and spent seven years away in Arizona and Florida while she served in the Air Force. After separating from the Air Force in 2014, she came back to the beautiful Pacific Northwest. She finished a Bachelor's in Environmental Studies along the way but has realized that she wants to be in the animal healthcare field. She is working to be accepted into the Vet Tech program at Portland Community College so that she can become a Certified Vet Technician. She enjoys spending time outdoors, cooking, reading, and hanging out with her resue dog, Gus!

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Assistant & Certified Dog Trainer

Crystal has always had a passion for animals. Growing up, there was always a pet in her home which she loved and cared for. This love led to her career in veterinary medicine as a technician where she is able to directly impact pets’ lives, as well as advocate for the best quality of life possible. She has two kittens, Delia and Blanket who was adopted out through Happy Valley Vet's Save a Life Kitten Adoption Program. She also has a German Shepherd puppy named Aliza.

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Christina grew up in Medford, Oregon and moved to Beaverton during her High School years. She graduated from Portland Community College in 2012. Her career with animals began at Petsmart caring for customer's, small pets, birds, fish and reptiles. Christina later worked as a dog trainer and then went on to pursue dog grooming, which she did for a couple years. She has a Cavalier King Charles Spaniel named Prince and two cats (Tyrone and Jasper) that she can't live without. Christina enjoys walking, hiking, and exploring the outdoors with her friends and their dogs.




Skylar grew up in Portland, OR with her two sisters, two dogs, three cats, and various other pets (hermit crabs, frogs, goldfish). She's been an animal lover since day one, and all of her cats have been rescues or strays. She volunteered at a reptile/amphibian shop for a few months in high school, before attending Southern Oregon University for two years. She started out as a volunteer here and was excited to be added to a part of the team. She has been excited to learn as much as she can and provide animals with the health and well-being they deserve. She currently lives in Milwaukie with her two year old tuxedo cat, Felix. In her free time, she enjoys doing crossword puzzles, watching movies, camping, spending time with friends and family, and savoring craft beer.

MollyMolly Mae


Molly is Oregon born and raised, currently living in Gresham with her Pembroke Corgi, Ein. In their free time, they enjoy going on long walks and exploring the Columbia River Gorge. Just Molly likes painting, reading, and playing video games, though. While she has experince with dogs as a trainer at Petco, Molly's heart belongs to the kittens. She has set herself on the path of animal care after working at the Oregon Humane Society and decided that she loved it! That love has led her to pursue this career and she hopes to continue her education and eventually become a Certified Veterinary Technician.

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Office Hours

Our Regular Schedule

Happy Valley Office


9:00 AM-6:00 pm


9:00 AM-6:00 pm


9:00 AM-6:00 pm


9:00 AM-6:00 pm


9:00 AM-6:00 pm


9:00 am-6:00 pm


9:00 am-4:00 pm