Our caring and compassionate veterinary care team!

Londonderry Animal Hospital is a full-service veterinary medical facility, located in Middletown, PA. The professional and courteous staff at Londonderry Animal Hospital seeks to provide the best possible medical care, surgical care and dental care for their highly-valued patients. We are committed to promoting responsible pet ownership, preventative health care and health-related educational opportunities for our clients. Londonderry Animal Hospital strives to offer excellence in veterinary care to all of their patients.

Providing our patients with high quality, compassionate medical care is our highest mission. We, the animal care professionals at Londonderry Animal Hospital, pledge to assist and support our clients in making informed decisions about animal health. We commit ourselves to lifelong learning and professional growth.

Who is really in charge....



“Don’t worry, I didn’t get loose. I live here.” Clementine came to live with us in 2019. She was brought in by a good Samaritan as a stray youngster. With no microchip, and no one to claim her, she became our meet and greet kitty. She mostly lives in our treatment room, but don’t be surprised if you catch her sitting in the lobby looking out the window.


Lia Belanger, DVM

Dr. Belanger attended Cornell University where she obtained both her Bachelor of Science degree in Animal Science and her Doctor of Veterinary Medicine. She has a special interest in behavior, and treats exotic pets including rabbits, guinea pigs, ferrets, and small rodents. She has been a co-owner at Londonderry Animal Hospital since 1999.

Dr Belanger lives on a family farm with her husband and has 2 adult children. Their menagerie includes a dog, cats, horses, chickens, sheep, and peafowl. In her spare time, she enjoys spinning and knitting the wool from her own sheep, and spending time with her family. She is a member of the Veterinary Assistant Occupational Advisory Committee at the Lancaster County Career and Technology Center, and President of the Lower Dauphin Falcon Foundation.

Glenn W. Book, DVM

Dr. Book and his wife Dr. Lia Belanger took ownership of Londonderry Animal Hospital in 1999. Dr. Book graduated from Lower Dauphin High School in 1982 and went on to attend Vassar College where he graduated in 1986 with his Bachelor of Arts degree in Biology. Dr. Book then attended New York State College of Veterinary Medicine at Cornell University where he received his Doctorate of Veterinary Medicine in 1995.

He lives on the family farm with his wife and two sons, Miles and Avery. They have an array of pets; Reggie the dog, Michael, Theo, and Ferris the housecats, their barn cats that are all named after the kings and queens from the book Narnia, sheep, peafowl, chickens, Score and Lakota their horses and an alpaca. In what spare time Dr. Book has, he enjoys gardening, skiing, reading, practicing his horsemanship and leading scouts.

Interests: OFA & PENN HIP Certified Doctor, Large Animal Doctor (at Hospital only)

Jose Venereo, DVM

Bio coming soon...

Client Care Team


Client Care Team Leader

Greta, who grew up in York, joined our team in 2014. She graduated from Lebanon Valley College with a BS in Music Education. She lives with her husband, Ron, and their two cats, Ellie and Khloe. Greta enjoys teaching music, traveling to warm places, and spending time with family and friends. Though she's lived in PA her whole life, she has "move to the Caribbean " on her bucket list!


Destiny has been a wonderful addition to our client care team here at Londonderry Animal Hospital. She grew up in Lancaster County and graduated from Elizabethtown College. After earning her degree, she spent two years serving with AmeriCorps Vista. She came to work with us in 2021 and we look forward to many more years with her at our front desk.

Destiny loves going to movies and playing mini golf. Her favorite movie is Harry Potter and the Goblet of Fire. Jane Goodall inspired Destiny’s love for primates. This passion is what prompted her to earn a degree in Sociology & Anthropology. Her favorite animal is the aye-aye, which is a very cute little primate.


Deb joined our team in 2022 as a client care specialist. Her attention to detail makes her an asset at the front desk. She currently lives in Palmyra with her husband Steve. Deb is a lover of older dogs and has 4 furry senior citizens; some of whom she adopted in their golden years. She enjoys being with her grandchildren, crafting and refinishing furniture.

Patient Care Team


Patient Care Lead

Beth joined the Londonderry team in 2020. In 2022, she became the Team Lead for the vet. techs/assistants. Beth gradated from Washington College in Chestertown, Md. She acquired a BA in Business Management with a Philosophy minor. She owns three cats: Preslei, River, and Cynder. In her spare time, she enjoys anything outdoors, yoga, cooking, and spending time with her cats, friends and family. Favorite quote – “Give me 6 hours to chop down a tree and I will spend the first four sharpening my axe” -Abraham Lincoln


Keri joined our team in 2021. She started as an intern through the Lancaster County CTC program where she earned her veterinary assistant certification. She has continued into the veterinary technician program and is due to graduate in the spring of 2023. She will then be eligible to take the VTNE exam and become a licensed veterinary technician.

Growing up in Lancaster County, Keri has always been passionate about animals. Helping all little companions defined her childhood and now she gets to live out that dream on a professional level. Keri is a sweet honest soul who wants nothing more than to make people smile and offer their pets comfort. She shares her home with her family and two cats, Watson and P.K. (Princess Kittens).


Lineya Joined our team in 2018. She has an associates degree in Veterinary Technology from Lancaster County CTC. She shares her home with two Norwegian Elkhounds named Ziva and Nikita, two guinea pigs named Abby and Ally, as well as some fish. Lineya enjoys spending time reading, painting, and watching movies. Her favorite movie is The Longest Ride. She also likes to spend time with her family and friends. If asked, Lineya would say her superpower at work is that fleas and ticks cannot hide from her. If they are there, she will find them.


Laura graduated from the University of Rochester in May 2022 with a B.S. in Ecology and Evolutionary Biology and a minor in Psychology. She began working at Londonderry Animal Hospital shortly after. She has had a lifelong passion for working with animals and loves having the opportunity to do so every day. Her favorite part of working at Londonderry is getting to know clients and taking care of their pets. Laura has a beagle/bulldog mix named Fiona who she loves very much. In her spare time, Laura enjoys going to local theatre productions, spending time with friends, practicing yoga, and listening to podcasts.


Alyssa started working with us in 2019. She has an Associate’s Degree in Veterinary Technology from YTI. She has been a wonderful addition to our staff. Alyssa works mostly as a veterinary assistant but has spent time greeting clients at the front desk as well. She gives our patients a high level of care and kindness and we are grateful to have her on staff.

In her spare time Alyssa enjoys spending time with her family and friends. She loves the outdoors and wants to pass that love onto her children by allowing them to explore as much as possible.


Inventory Control Specialist, OSHA Representative

Becky has been working as a certified veterinary assistant with us since 2008. She graduated from Elizabethtown Area High School, and lives in Lancaster County with her family. She earned her Veterinary Assistant Certificate in 2008 from Lancaster County CTC.

In her spare time Becky likes to garden and spend quality time with her family. In addition to her human family, she shares her home with a dog and two cats. Becky’s favorite animal is the elephant.

Practice Manager


Practice Manager

Lori Joined the staff of Londonderry Animal Hospital in 2010. She worked as a Veterinary Assistant until 2017 when she moved into the Practice Manager’s position. She received her AAS in Business Management from HACC in 2022. In November of 2022 she completed the Certified Veterinary Practice Manager exam.

Lori has a husband and three adult children who she loves to spend time with. She likes gardening, going to the beach, reading, watching movies, refinishing furniture, and canning a variety of fruits and jams. She is obsessed with the Harry Potter Series and loves Yellowstone. Lori shares her home with a dog named Milkshake. Her favorite animal would be the horse.