Meet Our Staff

Our Veterinarians

Lisa Harrenstien, DVM, Dipl. ACZM

Lisa Harrenstien

Dr. Lisa Harrenstien is the owner of Avian and Exotic Veterinary Care, which she founded in April 2016. Dr. Harrenstien has 30 years of experience as a veterinarian, including employment in private small animal/exotics practice, university exotics practice, postdoctoral training in zoological pathology, consultant work related to avian and exotic species, and zoo practice. She was an associate veterinarian at the Oregon Zoo for 13 years, and is a Board Certified Specialist in Zoological Medicine(TM), an ACZM Diplomate. The ACZM is the American College of Zoological Medicine, which is the veterinary specialty organization related to the care of avian/exotic companion animals, as well as free-ranging wildlife and animals in zoological facilities. Dr. Harrenstien was the first veterinarian in Oregon to have achieved this specialist ranking, and remains the only private practice veterinarian in the Pacific Northwest with this status. She is also the only veterinarian in Oregon to be listed as a Fear Free Avian Certified Professional.

Dr. Harrenstien belongs to numerous veterinary organizations, including the Portland Veterinary Medical Association and the American Veterinary Medical Association. She is on the executive committee of the American College of Zoological Medicine, serving as the organization’s treasurer. 

Dr. Harrenstien’s favorite patients over the years have usually been the ones that heal well from serious illnesses and still appreciate her veterinary visits, including a California sea otter named “Thelma” who needed a lung removed, a young double yellow headed Amazon parrot named “Miss Lilly” who had her upper beak bitten off by a macaw, and a Houston toad named “Ratatouille” whose face and toes healed well after a predatory attack by a rat.

Paul Gibbons, DVM, MS, Dipl. ABVP (Reptile/Amphibian)

Paul Gibbons

Dr. Paul Gibbons joined AEVC in January 2018 as our associate veterinarian, bringing 23 years of veterinary experience to our team. Dr. Gibbons obtained his DVM degree at the University of Illinois, completed a clinical residency in avian, herpetological, and non-domestic mammal medicine at University of California–Davis, and obtained his Master of Science degree from UC-Davis emphasizing diagnostic assay validation and wildlife disease ecology. Early in his career he worked in mixed animal practice in the Midwest, then founded an exotics private practice in Wisconsin, then became Managing Director and Chief Operating Officer of the Turtle Conservancy, a global conservation NGO.

Dr. Gibbons is a board-certified specialist in Reptile and Amphibian practice through the American Board of Veterinary Practitioners (ABVP), being a founding Diplomate, and from 2002 to 2012 was ABVP board certified in avian medicine. Dr. Gibbons is very active in professional veterinary organizations, including being Past-President of the Association of Reptilian and Amphibian Veterinarians. His work is published in numerous scientific journals, conference proceedings, and lay periodicals, and he has been an invited educator at conferences and conservation facilities throughout the world. In 2009, Dr. Gibbons was selected by his peers for the “Exotic DVM of the Year Award.” He serves the Association of Zoos and Aquariums as program leader of the Ploughshare Tortoise Species Survival Plan, on the Radiated Tortoise SSP Advisory Committee, and on the Steering Committee of the Chelonian Advisory Group. He is a member of the International Union for Conservation of Nature (IUCN) Tortoise and Freshwater Turtle Specialist Group and the Conservation Planning Specialist Group.

Dr. Gibbons is passionate about helping people to sort through myriad sources of information to solve health problems and ensure the best possible care for exotic animals.

Rebecca Mattucks, DVM

Rebecca Mattucks, DVM

Dr. Mattucks originally hails from Kansas City and went to the University of Missouri for both her undergraduate and veterinary degrees. After veterinary school, she completed a rotating small animal internship at Garden State Veterinary Specialists in New Jersey, then an avian and exotic specialty internship at The Animal Medical Center in Manhattan, New York, then a residency in avian medicine at Island Exotic Veterinary Care in Long Island, New York. She is actively working on multiple publications and preparing to become an ABVP specialist in avian medicine. Dr. Mattucks’ love of exotic species started from a young age and led to several trips to South Africa to study wildlife management and medicine. While practicing medicine, she finds joy in educating owners about the unique needs our exotic pets have to live happy lives. She hopes to one day extend her career to include actively giving back to conservation efforts around the globe. She moved here to Portland in late 2020 with her husband, dog, cat, two birds, and far too many house plants. In her free time, she is excitedly exploring all the Pacific Northwest has to offer, hiking, restoring furniture, and exercising a self-proclaimed green thumb.

Josie Rose, DVM

Josie Rose

Dr. Rose joined AEVC in August 2018 as an intern/associate veterinarian. She is a native of Cleveland, Ohio, and her interest in exotic and zoological medicine has taken her across the country. Her interest in zoological medicine started in high school when she worked as an extern with the Veterinary Department at Cleveland Metroparks Zoo and continued through her undergraduate training at Ohio State University. She is a 2013 graduate of UC Davis School of Veterinary Medicine, and it was at UC Davis where she met her husband, a fellow veterinarian. Following graduation from veterinary school, she completed a small animal rotating internship at VCA Loomis Basin near Sacramento, California and then proceeded to work the following year and a half in small animal medicine in Bakersfield, California. During this time, she provided contract services for the local zoo. Following this experience, she completed two internships in zoological medicine at Cleveland Metroparks Zoo and Indianapolis Zoo. She enjoys research, and was recognized by Morris Animal Foundation for her research with black rhinos during her veterinary training. She has published two articles, and also presented two topics at the 2018 American Association of Zoo Veterinarian's conference in Prague, Czech Republic. Dr. Rose enjoys veterinary problems that require "thinking outside the box" for solutions. She especially loves cases that integrate many different disciplines to achieve the best outcome for exotic patients. Dr. Rose runs half marathons and enjoys trivia competitions, historical documentaries, and visiting her many family members across the country. She is very excited to be a part of the AEVC team!

Veterinary Technicians

Rachel Anderson, CVT

Rachel Anderson, CVT

Rachel has a huge passion for exotic critters. Rachel’s very first pet was a rat and that is where Rachel’s love for animals (more specifically, exotics) began. From there she had many hamsters and canaries as pets over the years and she now has a Red Factor canary by the name of Ember and a senior Tibetan Spaniel dog by the name of Cimba. Rachel attended Bel-Rea Institute of Animal Technology in Denver, Colorado where she received her Associate of Applied Science (AAS) in Veterinary Technology and graduated with honors in March of 2020. She became a Certified Veterinary Technician in December of 2020. Rachel hopes to become a Veterinary Technician Specialist (VTS) in Exotic Companion Animals someday. Rachel has several years of veterinary experience ranging from being a front-desk receptionist to a kennel technician caring for exotic species boarders. Rachel and her husband are both born and raised Oregonians. When Rachel isn't taking care of your pets, she loves to listen to music, travel (especially to the Oregon Coast), explore new places, take pictures, and play video games or watch Marvel (MCU) movies with her husband. Rachel also loves to collect pressed pennies and has an ever growing collection of such. Rachel is excited to be a new member of the AEVC team!

Jennie Parker, CVT

Jennie Parker, CVT

Jennie is a native of Oklahoma and has had a passion for exotic animals since she was a little girl. She graduated from Oklahoma State University - Oklahoma City Campus in 2014 with a degree in Veterinary Technology. In Oklahoma, she worked at a 24 hour emergency veterinary clinic for 4 years. Jennie moved to Oregon at the beginning of 2019 with the goal of becoming a Veterinary Technician Specialist in Exotic Companion Animals; there are currently only 10 of these technicians in the country! Jennie has owned a wide variety of animals such as sugar gliders, rabbits, snakes, lizards, birds, small mammals, tarantulas, cats and dogs. In her spare time, Jennie likes to stretch her creative wings with drawing and other media.

Receptionists & Veterinary Assistants

Mandy Dickson

Mandy Dickson

Mandy is a born and raised native of Portland, Oregon. She first worked with exotic animals when she was a ZooTeen at the Oregon Zoo in high school, and she was able to follow her passion by attending PCC's Biology and Management of Zoo Animals program, obtaining an Associate of Applied Sciences degree. Mandy completed a year long co-op internship at the Oregon Zoo and a 3 month internship at Point Defiance Zoo and Aquarium in Tacoma, WA working with a wide variety of species in their Asian Forest Sanctuary exhibit. Mandy previously worked in emergency veterinary medicine but has now been given the amazing chance to extend her insight and her abilities at AEVC. In her spare time, Mandy enjoys reading manga, watching anime and doing puzzles.

Felicia Hamilton

Felicia Hamilton

Felicia Hamilton was born and raised in Oklahoma. She has been in love with the science of veterinary medicine since she was a child. She began her work with exotic animals in high school through the junior curator volunteer program at the Oklahoma City Zoo, then she obtained a Bachelors of Science degree in zoology, and began working for an emergency clinic in Oklahoma after college. After gaining experience in intensive care and surgical medicine of dogs, cats and smaller numbers of exotics, she moved to the Portland area in 2020 to focus on learning more about exotic animal medicine.  Outside of her love of veterinary medicine, she has two main passions: music and tabletop gaming. She has played the double bass since 2001 through school, semi-professional, and community groups. She is joined in her move to the Pacific Northwest by her husband, who supports her every endeavor.

Brian Lynn, MS

Brian Lynn, MS

For nearly 20 years, Brian has been involved in wildlife care, conservation, and research efforts across the US. Prior to joining AEVC, he worked as a keeper at San Francisco Zoo and Fresno Chaffee Zoo, trained birds for free flight shows at Disney’s Animal Kingdom and Dallas Zoo. and supported marine mammal research and rehabilitation programs at Long Marine Lab and Alaska SeaLife Center. He earned a B.S. in Ecology and Evolution with a minor in History of Art and Visual Culture from UC Santa Cruz, and a M.S. in Animal Biology from UC Davis where his thesis focused on the behavior effects of guest feeding programs on zoo-housed giraffes. Currently, Brian also leads professional development courses and coordinates multi-institutional research initiatives as an animal welfare consultant with the Portland-based AWARE Institute. He is also a board member of the Giraffe Conservation Alliance. In his free time, Brian can be found hiking, kayaking, cooking, playing the piano and collecting books at a faster rate than he reads them. His spirit animal is the walrus.

Jackie Reed

Jackie Reed

Jackie is an Oregon native who has over 15 years of veterinary reception and client care experience. She has worked in both emergency and small animal practices, but has always wanted to learn more about the specialty of exotic animal medicine. She earned a Bachelor of Science degree in Zoology from Oregon State University, and she also spent a year at Oregon Coast Community College where she earned a Certificate in Aquarium Science and participated in various volunteer and internship opportunities involving marine and freshwater fish and invertebrates. She absolutely loves being in a profession where she gets to help pets and their humans, and she has a great passion for all varieties of animal health and medicine. Her current pet family consists of one dog, a cat and two betta fish. She is very excited to start this new adventure with AEVC!

Kathleen Studdert

Kathleen Studdert

Kathleen has had a lifelong love for animals. Her first pets were a guinea pig and silkworms when she was four years old, and she started fostering orphaned kittens when she was twelve. Kathleen's passion for wildlife and conservation guided her to earn a bachelor’s degree in environmental studies. With a desire to get hands on experience with a wide range of animal species, Kathleen completed the 2 year Biology and Management of Zoo Animals program at PCC. Through the program Kathleen completed a student internship at the Oregon Zoo, and she has been involved in wildlife rehabilitation at the Audubon Society of Portland for almost five years.  Throughout Kathleen’s life, she has had a variety of pets from box turtles and rats to parakeets. Currently, Kathleen has a dog, two cats, five goldfish, and a 20-year-old corn snake. 

Juli, CVT

Juli, CVT

Juli's biography is coming soon!