Dean Wallace, DVM

(Founder and Owner)

staff_DeanWallaceDr. Wallace was born in Wakefield, Massachusetts. His interest in biology led to a Bachelor of Science Degree from the University of Massachusetts.

He earned his Doctor of Veterinary Medicine degree from Purdue University School of Veterinary Medicine and Surgery in West Lafayette, Indiana in 1975.

He began his career in Kingston, New Hampshire working for Dr. Dan Burbank at the Kingston Animal Hospital. Dr. Wallace left Kingston with a dream of opening his own hospital. In 1976, he founded the Plaistow Animal Medical Center in Plaistow, NH. Over the next 30+ years the practice grew until, in 2006, Dr. Wallace returned to Kingston when he moved the hospital just a few miles north to its current location, changing its name to the Plaistow-Kingston Animal Medical Center.

Dr. Wallace’s professional interests include orthopedic surgery, exotic medicine and diagnostic imaging. He and several of his technicians have donated vacation time over the years working free spay/neuter clinics to help control the population of stray and orphaned animals on the islands of Anguilla, Granada, Carriacou and Gouyave.


Kate Mattera, DVM

Katie Mattera, DVMDr. Katherine Mattera grew up in Ipswich Massachusetts. She graduated from Wheaton College with a BA in biology in 2006. During her time at Wheaton, she worked on a research project with diamondback terrapin turtles on Cape Cod. Her love for working with animals continued after her undergraduate studies when she started working as a veterinary technician at a small animal practice in Woburn Massachusetts and later at a shelter in Ithaca New York.

She graduated from Ross University School of Veterinary Medicine in January 2015, and completed her clinical year at Oklahoma State University. Prior to joining the team at PKAMC, she worked as a small animal clinician for the Banfield Hospital in Manchester NH and The Animal Welfare Society, a small animal shelter in Kennebunk ME. Dr. Mattera enjoys all aspects of general small animal practice but is particularly drawn to preventative medicine, soft tissue surgery, dermatology and geriatric care.

During her free time, Dr. Mattera enjoys kayaking, hiking, knitting, cooking and spending time with her husband Trevor and the newest additional to the family Ryan Trevor Mattera. She has one dog, Autumn who is a rescue from St. Kitts, and a cat named Jack from Oklahoma.

Dr. Mattera joined the Plaistow-Kingston Animal Medical team in May 2016.


Carissa Smullen, DVM

Dr. Smullen copyDr. Smullen grew up in the small town of Sandown and received her undergraduate degree from the University of New Hampshire in Durham. She graduated from the University of Glasgow in Scotland with her BVMS degree (the UK’s equivalent of a DVM) in June of 2010. She has been working as a small animal practitioner for the past 7 years. After working at an integrative practice about four years ago, she developed an interest in alternative therapies and received her acupuncture certification at the Chi Institute in Florida in 2014. She also became certified in food therapy last year.

She enjoys all aspects of veterinary medicine, but shows particular interest in alternative medicine, acupuncture, soft tissue surgery, neurology, and further developing her ultrasound skills. She is looking forward to working with the staff here and meeting the clients and patients.

Dr. Smullen currently lives in Auburn, NH with her husband, Jonathan, her dog, Leia, her cats Stjarna, Rapunzel, Aramis, and Chiana, and her chinchilla, Captain Jack. In her spare time, she enjoys running, yoga, painting, and spending time with her family.


Eli Carleton

staff_EliCarletonEli started working at the PKAMC as a veterinary technician in 2002. He attended Thomson Direct. He has a special interest in exotics, and keeps a collection of tree boas. He enjoys studying ectotherms in captivity and in their natural environment, and has made multiple trips to Grand Cayman, Costa Rica and other exotic locales to study these creatures and further his knowledge in the field. Eli is our Head Exotics/Surgical Technician and Associate Hospital Manager. He lives in Southern, NH with his wife and two sons Ray and Leo.


Beth Kelley

staff_BethKelleyBeth has been working as a veterinary technician at the PKAMC since 2002, and was promoted to Head Technician/Practice Manager in 2011. She brings 20+ years of experience in the veterinary field to our practice, and has become an integral member of our team. She lives in Northern, MA with her husband and a menagerie of adopted cats and dogs.


Wendy Medolo

wendy-medoloWendy started working for Plaistow-Kingston Animal Medical Center in August of 2016, and was promoted to head receptionist in 2017. She has over seven years experience as a veterinary receptionist and technician. Wendy has worked with military veterans, enjoys riding motorcycles, hiking and sharpening her target practice skills by going to the gun range.
Wendy lives in Southern New Hampshire with her three German Shepherds, her husband and son.


Morgan Sullivan

Morgan Sullivan copyMorgan joined the PKAMC team in 2015 as an intern from Great Bay Community College. She has since been hired to our staff as a certified veterinary technician. In her free time she enjoys volunteering at local feral cat spay/neuter clinics. She also enjoys skiing, camping and hiking with her family. She lives on the NH seacoast with her husband Ryan, cat Tsetse and 2 dogs Dakota and Ilsa


Morgan Ridzon

Morgan RidzonMorgan joined the PKAMC team in 2017. She brings over 6 years of experience with animals, small, large and exotics. Morgan’s smiling face and cheerful attitude brightens everyone’s day. A Connecticut transplant, she now lives in southern New Hampshire on a small hobby farm where she cares for chickens, goats, her horse, dogs and cats. In her spare time Morgan enjoys playing softball, field hockey hiking, and showing her horse.


Janet Wallace

Janet & TubsterJanet has been working as the PKAMC’s book-keeper for many years. She is responsible for payroll, accounts payable and receivable, as well as tax data preparation. Her dedication and attention to detail keeps the financial aspects of our practice running smoothly.


Jeremy Wallace

staff_JeremyWallaceJeremy has worked with his father Dr. Wallace for almost 20 years. He is the PKAMC’s Property Manager and maintains our facility to the highest standards of cleanliness and safety. His responsibilities include everything from maintaining our floors and plants to snow-removal. He lives in Southern, NH with his wife, Sarah and five cats.


Sarah Wallace

Sarah WhittenSarah has been working as a receptionist at the PKAMC since 2007. She is a compassionate and valued patient care educator for our clients, and enjoys the fast-paced environment at the hospital. Her responsibilities also include maintaining our retail-food supplies. She lives in Southern, NH with her husband and five cats, and in her spare time enjoys cooking and reading.