About Wignall Animal Hospital

Wignall Animal Hospital is a full-service, state-of-the-art, 10,000-square-foot veterinary facility specializing in health care for companion dogs and cats. With the use of the latest techniques in veterinary medicine, our highly trained staff provides complete medical and surgical care for all your pets. Our philosophy is to work with our clients to keep their animals healthy, and we suggest regular preventive care, which lowers the risk of many potentially serious problems.



Wignall Animal Hospital was established in 1970, and we have been providing a high standard of veterinary care to the Merrimack Valley area ever since. We embrace the strict standards of quality required for accreditation by the American Animal Hospital Association (AAHA). We are equipped with the latest medical, surgical, dentistry and diagnostic equipment, a fully computerized record-keeping system, radiography, diagnostic laboratory and life-support equipment, and our compassionate and friendly staff are here every day to serve our clients and patients. For most people, pets are not just animals but are members of the family. At Wignall Animal Hospital, we are committed to helping protect and preserve that bond by partnering with you to offer the best care and quality of life possible for your pets.


Adult and Senior Wellness

We recommend routine physical examinations and vaccinations for young patients and for senior and geriatric patients. Just as with human medicine, as a pet reaches its golden years, we recommend senior-specific laboratory tests to help us gain insight into an aging pet’s health. This screening allows us to have a baseline of what is normal for your healthy pet as well as identify early signs of disease. Early detection allows us to begin treatment as soon as possible for the most favorable outcome.


Pet Boarding and Dog Daycare

While you’re away, allow us to take care of your pets at their home away from home. Your pets can visit Camp Wignall for boarding, daycare, baths, haircuts, and nail trims. Cats, dogs, reptiles, birds and exotic small mammals board year-round at Camp Wignall. Physical examinations, vaccinations, laboratory tests and more can be done during any boarding stay. Plus, they’ll get plenty of exercise in our large turfed outdoor play areas!

We are fastidious about our staff. We only hire staff who are intelligent, knowledgeable, caring and skilled and who love animals. We provide extensive training to new employees, and continuing education and training are ongoing for all staff in order to ensure that we deliver the very best care possible to all our campers and patients. Keeping our staff current on the latest thinking in animal care, behavior and handling are one of our fundamental values, therefore ongoing continuing education is an integral part of working at Camp Wignall.


Payment Plans

Wignall Animal Hospital is happy to offer clients different ways to pay for veterinary care, grooming, boarding, and daycare services. We know that you want the very best for your pet during routine visits and screenings and during sick visits, treatments and surgeries. No matter what service your pet receives, payment plans are an option for you.

We are pleased to offer interest-free payment plans through CareCredit®. CareCredit offers a convenient, low minimum monthly payment program to help you with the best treatment recommendations for your pets. We will assist you with the quick and easy application process. CareCredit helps make pet health care decisions even simpler.

We also accept Scratchpay. Scratchpay provides pet parents with simple transparent payment plans. Get care for your pet now, pay later! Scratchpay isn’t a credit card. Checking your plan options will NOT affect your credit score. No hidden fees. No prepayment penalty. No deferred interest. No surprises.

We know that you want the best possible care for your pet, and we understand that it is easier to provide that care when you can budget accordingly. We offer Essential Care Plans which allow you to provide high level care with regular affordable monthly payments. These plans offer discounts on core vaccines and annual wellness services as well as additional discounts for flea, tick and heartworm preventives and medical services! You can also add spay, neuter, microchipping and dental services!


Pet Insurance

Pet insurance is becoming more and more popular as more pet owners realize how they and their pets can benefit from it. We have information available for coverage provided by Trupanion®, and we recommend that you purchase insurance when your pet is a puppy or kitten, as you’ll benefit from the insurance more the longer your pet is covered.

Meet Our Doctors!

Dr. Acelyn Colella

Dr. Colella's Bio

Education: Tufts University Cummings School of Veterinary Medicine

Dr. Acelyn Colella is a graduate of the University of New Hampshire and Tufts University Cummings School of Veterinary Medicine, where she was awarded a Doctorate of Veterinary Medicine. She extended her training with a postgraduate internship in emergency medicine and was part of a team of emergency, specialty and general-practice veterinary physicians.

Growing up in Lowell, Dr. Colella’s family pets were patients of Wignall Animal Hospital, therefore her veterinary career has brought her full-circle back to Wignall.

Her special medical interests are emergency and preventive care, and in her free time, she enjoys being with family, friends and pets, as well as baking and going to the beach. Dr. Colella is the proud mom of two Devon Rex cats and a Chihuahua. She sees patients at Wignall Animal Hospital.

Dr. Allison Detelich

Dr. Detelich's Bio

Education: University of Pennsylvania School of Veterinary Medicine

Dr. Allison Detelich is a graduate of George Washington University in Washington D.C., where she received a B.S. in biology. With experience as a veterinary technician before attending veterinary school, Dr. Detelich has a broad range of veterinary knowledge. She was awarded her Veterinary Medical Doctorate from the University of Pennsylvania School of Veterinary Medicine.

In addition to her active work life at Wignall Animal Hospital, Dr. Detelich donates her time and expertise to feline spay and neuter clinics in eastern Massachusetts. She has special interests in feline care and brachiocephalic breeds.

Dr. Detelich is the proud owner of two cats of her own, as well as an English bulldog. As a general practitioner, she has strong interests in large and giant breeds and companion animal surgery. Dr. Detelich sees patients at Wignall Animal Hospital.

Dr. Kate Thomas

Dr. Thomas' Bio

Education: Virginia-Maryland Regional College of Veterinary Medicine

Dr. Kate Thomas completed her undergraduate degree in biology at Skidmore College. Kate then attended Virginia-Maryland Regional College of Veterinary Medicine in Blacksburg, Virginia, where she was awarded her Doctorate of Veterinary Medicine. She is a member of the American Veterinary Medical Association, American Animal Hospital Association, and Massachusetts Veterinary Medical Association.

As a general practitioner, Dr. Thomas has special interests in surgery and behavioral medicine as well as exotic animals, particularly reptiles.

She is the proud mom of three border collies and one mixed-breed dog, as well as a skink. Dr. Thomas sees patients at Wignall Animal Hospital.

Dr. Leigh DeMarco

Dr. DeMarco's Bio

Education: Tufts University Cummings School of Veterinary Medicine

Dr. Leigh DeMarco is a 1996 graduate of Connecticut’s Trinity College, where she received a B.S. in biology. After completing her undergraduate studies, Dr. DeMarco was admitted to Tufts University School of Veterinary Medicine. After four years of veterinary studies, she was awarded her D.V.M. in 2002.

A general small-animal practitioner, Dr. DeMarco has strong interests in dentistry, brachiocephalic breeds, surgery and internal medicine.

During her leisure time, Dr. DeMarco enjoys traveling and participating in sports as well as spending time with her two English bulldogs. She sees patients at Wignall Animal Hospital.

Dr. Nancy Kopec

Dr. Kopec's Bio

Education: Purdue University School of Veterinary Medicine

Dr. Nancy Kopec graduated with a B.S. in biology and pre-veterinary studies from the University of New Hampshire in 1978. After completing her undergraduate studies, Dr. Kopec was awarded her D.V.M. from Purdue University School of Veterinary Medicine in 1984.

Dr. Kopec has been active with New England animal humane societies for many years and is a member of the Heritage/Historic District Commission in her hometown, where she enjoys gardening, cooking, and travel. She is the proud mom of a Siamese cat and has a special interest in all aspects of feline medicine.

Dr. Kopec sees patients at Lowell Veterinary Clinic.

Meet Our Team!

Taylor – Office Manager

Lynn, CVT – Clinical Manager

Miguel – Hotel Manager

Alex – Veterinary Technician

Lisa – Veterinary Technician

Mechelle – Veterinary Technician

Missy – Veterinary Technician

Ian – Veterinary Technician

Samantha – Veterinary Technician

Abbie - Assistant Veterinary Technician

Heather – Client Experience Supervisor

Samantha – Value Communicator

Kelley – Receptionist

Tarah – Receptionist

Need an appointment?


Contact Wignall Animal Hospital at 978-674-7944 to schedule your pet’s appointment today or request an appointment online using our website.