Margaret Monachelli, B.A., D.V.M.

Dr. Margaret Monachelli is experienced in all aspects of small animal medical, surgical and dental care. Dr. Margaret Monachelli holds a B.A. in Psychology from Franklin and Marshall College, She also completed her Post-Graduate Pre-Medical studies at Columbia University. She received her Doctor of Veterinary Medicine Degree from Cornell University where she was a member of the Phi Beta Kappa Honor Society. She has published several articles in medical journals including Neurosurgery and the Journal of Cerebral Blood Flow.Dr. Monachelli has over 25 years of experience as a veterinarian. She has practiced in the greater Nashua area for the past 19 years. Dr. Monachelli founded Brookline Animal Hospital in 2012, and is proud that Brookline Animal Hospital is here to serve the local community by providing exceptional veterinary care. Dr. Monachelli’s goal is to provide the best preventative care to keep your pet healthy through out his/her life. If your pet becomes sick or injured, you can feel secure that Dr Monachelli has the medical knowledge, skill, and experience to manage the most challenging cases.

As a family practice veterinarian, Dr. Monachelli understands the importance of the bond between pets and their “humans.” She believes that client communication and education is crucial to optimal patient care, and strives to give clients updated medical information and advanced techniques to ensure their pets enjoy the very best quality of life. Dr. Monachelli is a member of the American Veterinary Medical Association (AVMA) and the American Animal Hospital Association (AAHA). She enjoys spending free time with her daughters Natalie and Nadine, and husband John. Other activities include hiking, skiing, gardening, boating, and taking care of her animals.


Mary Ellen Blake, B.S., V.M.D.

Dr. Mary Ellen Blake completed her veterinary training at the University of Pennsylvania, in Philadelphia. She holds a B.S. in Biology from Bates College in Lewiston, Maine. Dr. Blake specializes in small animal medicine, having practiced since 2005 in Southern New Hampshire following graduation from veterinary school. She first practiced under the mentorship of Dr. Margaret Monachelli.

Dr. Blake is dedicated to practicing the highest quality of medicine, and is thrilled to have Dr. Monachelli and her team at Brookline Animal Hospital.

Dr. Blake is a member of the American Veterinary Medication Association (AVMA) and New Hampshire Veterinary Medical Association (NHVMA). In her spare time, she enjoys the company of her three daughters, her husband, Tim and their dogs Olaf, Mabel, and Layla.


C.J. Churchill, B.S., M.S., D.V.M.

Prior to receiving her Doctor of Veterinary Medicine degree from Tufts University (MA), Dr. Churchill earned Bachelor of Science and Master of Science degrees from The University of Massachusetts – Amherst. Following an internship at Darien (CT) Animal Hospital, Dr. Churchill practiced for seven years with Dr. Margaret Monachelli in Amherst, NH, and for 11 years at a progressive multi-doctor veterinary practice in northern Massachusetts.

Dr. Churchill practices general medicine, soft tissue, and orthopedic surgery including T.T.A. (Tibial Tuberosity Advancement) surgery. She is dedicated to her patients and clients, and provides the highest quality care utilizing new applications and technology. Dr. Churchill is a member of the AVMA (American Veterinary Medical Association) and the AAFT (American Association of Feline Practitioners). In her spare time, Dr. Churchill enjoys her family and pets, as well as her lifelong love of horses and riding.


Christine (Chris) Ritner
Licensed Veterinary Technician
Chris has worked side by side with Dr. Monachelli since 2005, beginning at Amherst Animal Hospital, Animal Hospital at Ferry Road, Animal Hospital of Nashua, and now at Brookline Animal Hospital. Chris is our head client service representative and manages hospital inventory. One of Chris’s strengths is bonding with patients, and staying in close communication with you, our valued client. Chris enjoys spending time with her kids, her cats and dog Sidney.


Judy Blanchette, Veterinary Technician
Judy has over 20 years experience working as a veterinary technician, including eight years working with Dr. Monachelli in Amherst, NH. Her professional interests include surgery, pain management, post operative/recovery nursing care, and client education. Judy enjoys working with the high quality care team at Brookline Animal Hospital. She lives in Milford with her dogs and cats. In her free time, Judy enjoys hiking, reading, and spending time with family and friends.


Amy Armstrong, Certified Veterinary Technician
Amy graduated from the University of New Hampshire with a degree in Zoology. She has been in the veterinary field since 1999 and has been a Certified Veterinary Technician since 2006. She is a member of the New Hampshire Veterinary Technician Association and the National Veterinary Technician Association. Prior to joining Brookline Animal Hospital, Amy was an animal keeper at Franklin Park Zoo in Boston and co-managed a multi-doctor veterinary practice in New Hampshire. Amy’s special interests in the veterinary field include anesthesia, surgery, hospital management, and client service. Amy is passionate about her work and loves spending her day surrounded by animals. She lives on a family farm with her dogs, a Nigerian Dwarf Goat, horses and many chickens. When Amy is not at the hospital, she enjoys spending time with her husband and two daughters, horseback riding, gardening, and enjoying time outside.


Rebecca Hamilton, Certified Veterinary Technician
Rebecca joined our team in March of 2018. She graduated from Becker College with an Associates Degree in Veterinary Technology in 2000 and has been a Certified Veterinary Technician since. She is member of the Massachusetts Veterinary Technician Association. Becky started her career in general practice and prior to joining Brookline Animal Hospital specialized in anesthesia for 6 years where she supervised a busy surgical team in the Boston area. She spends her free time with her husband, two children, dog and guinea pig and loves the beach.


Kailey Capsalis, Veterinary Technician
Kailey joined Brookline Animal Hospital in January of 2015. She enjoys being an advocate for animals and working closely with their human companions. Her favorite part of surgery is dental cleanings and dental radiographs. Kailey has excelled in her knowledge of surgical monitoring. In her free time, Kailey enjoys spending time with her family, her son and her dog Jake.


Amy Joyce, Veterinary Technician
Growing up I was always surrounded by animals and from a young age I knew I wanted to work in the veterinary field. I was lucky enough to get my foot in the door at the age of 18. I’ve been working as a Technician ever since. Having worked in a large variety of clinics on the East coast and West coast, including several emergency clinics I have had a great opportunity to see how different animal hospitals run. I have also seen a wide range of different medical cases along the way. In my spare time I enjoy spending it with my loved ones including my furry creatures and riding my horses.


Pamela Tisa, Client Relations

After a career in healthcare recruiting Pam joined Brookline Animal Hospital in August 2017, where she is responsible for ensuring our clients have a great experience. A lifelong animal lover, she truly enjoys meeting all of our patients. She lives in Hollis, NH where she enjoys spending time with her family. Pam enjoys spending time with family and pets.


Nadine Monachelli, Technician Assistant
Nadine is Dr. Monachelli’s daughter. Working at Brookline Animal Hospital, Nadine developed valuable patient care and client care experience as a Veterinary Technician Assistant. Nadine worked with her mother at Brookline Animal Hospital through high school and now works during her breaks from studying economics at Saint Michaels College in Vermont.


Jessica Croft, Technician Assistant
Jessica has joined Brookline Animal Hospital in 2015, and works part time as her school schedule allows. Jessica is a recent graduate of North Middlesex High School and is attending Fitchburg State University to study pharmacology. Jess is happy to work with Brookline and the experienced staff in any capacity.


Kristina Ruhnau, Technician Assistant

Kristina is currently a student at Fitchburg State University, studying Biology. Working at Brookline Animal Hospital has given Kristina a chance to gain experience and knowledge about animal care. After Kristina graduates college she hopes to involve herself at the animal hospital more and in the future hopefully become a Certified Technician. When Kristina isn’t at school or work she is kept busy at home on her small farm, including pigs, goats, chickens, 3 dogs, 2 cats, and 2 birds.


Caylin Costello, Technician Assistant
Caylin is a senior at North Middlesex High School taking college courses at Mount Wachusett Community College. She intends to go to college majoring in biology and minoring in sign language. On her free time she writes music and volunteers around the community. Caylin’s love for animals and service has motivated her to plan to join the Animal Rescue Corps after college, and she is so grateful for all the opportunities and learning experiences Brookline Animal Hospital has given her.