Meet Our Veterinary Staff

At Yalesville Veterinary Hospital, our entire team is dedicated to providing your pet with the very best care. Every member of our staff is vital to the function of our hospital, and together our goal is offer a positive experience for you and your pet.


Our management team is the backbone of our practice. They support our veterinarians and the rest of our team with poise and professionalism, and we're lucky to have them!

Rosanne Brennan Hospital Manager

Rosanne Brennan has been in the Veterinary field since 1999. She has been with us here at Yalesville Veterinary Hospital since 2001 and became the Lead Veterinary Technician in 2005. She became the Hospital Manager in 2021.

Rosanne acquired her Veterinary Technician degree through PennFoster College and made the Dean’s list. She also earned her Practice Manager Certificate in 2021. Rosanne is also a licensed wildlife rehabilitator for the state of Connecticut. She currently has 3 cats, fish, one iguana and the occasional wildlife.

Rosanne Brennan

Christina Millea Finance Manager

Christina has prior experience working in a veterinary hospital and thoroughly enjoys working in this field.  She has a deep love for animals and enjoys the cohesive team environment. She has a BS in business and majored in accounting with 14 years of experience in the field.  She loves the work that she does.  Christina enjoys spending time with family and friends and her rescue pets Mia and Lucy.


Lisa Byrd Front Desk Manager

Lisa has been with Yalesville Veterinary Hospital since May of 2014. She joined our team when Yalesville and Meriden Veterinary Associates merged. Lisa came to us with 14 years of experience in the veterinary field. She lives with 2 Rottweilers at the moment whom she shows in the obedience rings and competes with in obedience, rally, herding, barn hunt.

Lisa also comes to us with 18 plus years of obedience training and teaches our puppy and adult dog obedience classes. In her spare time, you can find Lisa ring side at dog shows and seminars as she is interested in canine communication and behavior as well as canine rehabilitation. She is also certified as a Canine Good Citizen instructor through the American Kennel Club.

Lisa Byrd

Jennifer Martinez Technician Manager

Jen came to Yalesville Vet from a small clinic in Hartford, looking to gain experience and further her career in the animal care field.

In her free time, she enjoys exercising and hiking with her two dogs, Pluto and Fiona, and spending time with the newest addition to her family, a kitten named Abu.

Jennifer Martinez Crop

Ashley Luba Surgical Lead Tech

Ashley joined the Yalesville staff as a member of the Client Service Team. She quickly realized that working with animals was her passion and in June of 2019 she graduated from the Veterinary Technician program at Middlesex Community College and sat for her certification exam later that summer.

Ashley shares her home with 2 dogs, Camo, Tucker, a cat named Tiger, a Pot Belly Pig named Daisy, and a hedgehog named Lamar.

Ashley Luba

Veterinary Technicians

Veterinary Technicians work closely with the doctors to help ensure your pet receives the best care possible. Educated and skilled, the technicians (and technician assistants) medicate the hospitalized patients, obtain blood samples for testing, perform laboratory blood tests in house and prepare samples to go to outside laboratories.

They also assist the doctors in surgery, including monitoring anesthesia, performing dental scaling and polishing, preparing medications to go home with patients, taking radiographs (including dental). In addition, they provide care nail trims, cleaning ears, anal gland expressions and ear flushes, etc.

Rachel Trimarchi

Rachel began working in the veterinary field 4 years ago as a kennel/tech assistant at a small clinic in Ansonia. In search of more experience, she started the Penn Foster vet tech program in the spring of 2019. She has worked with animals from a young age, starting with volunteering at her local nature center, caring for the animals there and helping with rehabilitation of local wildlife. In high school she worked at the Beardsley Zoo in their summer program and that’s when she truly knew this field was for her. She has two golden retrievers named Indy and Brody and a cat named Bella and spends her free time baking and cooking.

Rachel Trimarchi

Jennifer Carlson

Jennifer graduated from Eastern Connecticut State University with a B.S. in Biology and a minor in Psychology. After graduating, she volunteered and later interned with the Marine Mammal Department at the New England Aquarium in Boston, MA. She also has been a husbandry volunteer at Mystic Aquarium here in CT for the past three years. Jennifer came to Yalesville Vet to continue her passion of working with animals. She is working towards becoming a certified Veterinary Technician.

When she is not at work, Jennifer enjoys dancing, archery, playing her trumpet, and many outdoor activities.

Jennifer Carlson

Mikayla Bedell

Mikayla came to Yalesville Veterinary Hospital in the summer of 2021 with three years of animal experience. She volunteered at the humane society as a teenager and hasn't looked back since. She has worked with domestic and livestock animals and even spent a summer in Africa. When Mikayla is not at work, she spends her time playing soccer and shares her home with her cat Jinx and has recently become interested in fostering.

Mikayla Bedell

Skyler Bacote

Skyler joined the Yalesville team in February of 2020. She has previous experience working in a small, one doctor practice in Maryland while completing her B.S. in Biology at Towson University. She recently graduated from the Honors college as the Pre-Vet club president, ready to further her career.

She enjoys spending her free time creatively with her Bichon Frise, Cody.

Working at YVH allows her to prepare for a career as a small animal veterinarian, with hopes of applying to veterinary school in the near future.

Skyler Bacote

Sam Gaidish

Sam started at Yalesville in May 2022 when he realized his passion was working with animals. He holds a bachelor's degree in biology from Southern Connecticut State University. He loves working with pets of all sizes and is looking to gain more experience in the animal care field.

Sam spends his spare time fishing, hiking, and hanging out with family and friends. He has a full house with 3 cats under the age of 3: Murphy, Mint, and Mystic.

Sam Gaidish

Rebecca Lazariuk

Becca came to Yalesville Veterinary Hospital in June of 2022 with 3 years of prior experience working in ER. Her goal is to get her veterinary technician certification to further her knowledge base and better serve her community. She enjoys spending her free time with her husband, cat, and cockatiel. 


Rosie Vega

Rosie’s first job with animals was at a dog bakery! Even though she was a long time cat lover this experience made her realize how much she loved dogs and enjoyed working with animals. After graduating college she took an unexpected turn and began working in a grooming salon as a bather and eventually taking a job as a dog trainer.  Rosie’s life took her away from a career with animals, but she found herself missing something and decided it was time to start spending her days with our furry friends. She first thought that would be in grooming, but an opportunity in the veterinary field opened up, and she quickly found out that is where she was meant to be.  

When Rosie isn’t spending time with clients' furry friends, she is with her two chihuahuas TL and Nibs.  Rosie also loves knitting, watching Supernatural, Reiki, likes the fall and all things spooky. 


Mallory Boiano

Bio coming soon!

Mallory Boiano

Technician Assistants

Technician Assistants support the doctors and technicians and are usually the ones that greet you in the lobby and escort you to the exam rooms when you come in for an appointment. They will ask you questions to get a complete history and the reason for your visit and help the doctor during the office call as needed. Behind the scenes, they assist in the general functionality of our hospital.

Brian Cyr

Brian has been with Yalesville since 2004.  He came to us having previously worked with senior citizens as well as other veterinary facilities. He is involved in every area of the hospital from assisting in surgery preparation, helping the technicians, caring for all in-house patients, and assisting the doctors and technicians with ultrasounds and X-rays. Brian is the 'go to' person if help is needed anywhere, or the technicians need an extra pair of hands. Brian shares his home with his 2 cats.

Brian Cyr

Kimberly Lint

Kim joined the Yalesville Vet team early in 2021, coming to us with many years of personal and professional animal relation experience.

Kim spends her spare time riding and showing horses, including Budweiser Clydesdales, and hanging out with her Boxer, Lotus.

Kimberly Lint

Lissette Varela

After obtaining a veterinary assistant certificate through Middlesex Community College, Lissette joined Yalesville Veterinary Hospital in July 2022.

In October 2021, Shaggy the Dachshund joined Lissette's family at the age of 3 months old. Later, Lissette and her family discovered that Shaggy is epileptic, which made Lissette interested in veterinary medicine.

In her spare time, Lissette enjoys watching movies, listening to music, and spending quality time with Shaggy and her grandparents.


Alaina Simmons

Bio coming soon!


Client Service

The client service staff at Yalesville are essential to our hospital team. Their duties include answering the phones, booking appointments, and admitting patients for surgery and/or daily testing. Our client service staff are the first and last people you meet while visiting our hospital, and they strive to make your visit a pleasant experience not only for you, but the members of your pet family.

Ashley Marquez

Ashley came to Yalesville Veterinary Hospital in the summer of 2021 with no prior experience in animal care, but has a long history working in customer service. Ashley shares her home with 1 dog named Lulu, and 2 birds named Shadow and Peaches.

Ashley Marquez

Jessica Christensen

Jessica joined Yalesville Veterinary Hospital in July of 2021 and is excited to expand her knowledge in the veterinary field. She is a mom of 2 boys and loves spending all of her extra time with loved ones.

Jessica Christensen

Marissa Jackson

Marissa joined the Yalesville CSR team in March of 2022. She came to us with a love of animals and some animal experience. When not at work, Marissa enjoys going camping and to concerts. Marissa has a full house at home with her dogs, cats, guinea pigs, chickens, and ducks.

Marissa Jackson

Deanna Martinez

Deanna joined the Yalesville CSR team in March of 2022. She came to us with a love of animals and an interest in using her client services skills to help clients and patients. In her free time, Deanna enjoys spending time with her family.

Deanna Martinez

Megan Ey

Megan came to Yalesville Veterinary Hospital in November of 2022 with many years of experience in animal care and 4 years in a veterinary hospital setting.  She came to us from New York State.

She lives with her 3 adorable cats, Daxter, Ezio and Sokka, She likes to make herbal soaps and scrubs and play dungeons and dragons in her free time.

Megan Ey


Our inventory management team plays a crucial role in keeping our hospital running smoothly. They ensure our practice is fully stocked with the highest-quality medications and other items to help your pet stay healthy.

Jennifer Perfetto Inventory Manager

Jennifer joined the Yalesville Client Service team in 2015. She came to us with past experience in both human medicine and customer service. Jenn became the inventory manager in late 2020.

Jenn has been an animal lover since she was a small child and has always dreamed of working in the veterinary field. She enjoys talking with clients about their pets and giving special attention and love to all the pets waiting to see the doctor. She has a special place in her heart for cats and kittens and is very versed on cat breeds and characteristics.

Jenn shares her home with her dog and 3 ball pythons. She enjoys spending time with her family. When she isn't working, Jenn tries to venture outdoors as much as possible and her love of nature has fostered her new hobby, keeping an indoor garden.

Jennifer Perfetto

Shannon Ryan Technician Assistant

Shannon recently joined the Yalesville team as a kennel assistant after graduating from the Veterinary Assistant Program from MCC. She assists with keeping your animals happy and clean as well as helping as an extra pair of hands.

Shannon shares her home with 3 snakes, a bearded dragon, 2 rabbits, a Great Pyrenees named Zoey, as well as some fish.

Shannon Ryan

Kennel Assistants

Our kennel assistants make our hospital a comfortable and clean place for our patients. They are responsible for maintaining the kennel area of our practice, sanitizing all surfaces and cages, keeping pets fed and watered, and providing basic grooming when needed.

Heidi Hester

Heidi has been with Yalesville Veterinary Hospital since December 2022, and she is one of the newest members of our team.  Heidi went to UCONN for agriculture and natural recourses and graduated in 2021. She has experience in a daycare and has also worked at another hospital as a veterinary assistant before joining our team. She hopes to learn more about the care of animals and plans to continue in this field. Heidi has an Aussie named Chase, and in her spare time likes to spend time with her dog and her family.