Veterinary Clinicians

Westford Emergency VeterinariansCharles Amuguni, DVM

Dr. Charles Amuguni was raised in the western province of Kenya, near the north eastern part of Lake Victoria. His upbringing drove him to a passion for helping animals, ultimately pursing a bachelor’s degree in veterinary medicine from the University of Nairobi in 1989. After graduating, Dr. Amuguni worked for the Kenyan government under the Department of Veterinary Public Health before joining the private veterinary sector.

While moving into private practice, Dr. Amuguni ran a mixed private practice that provided care large dairy and beef animals, as well as small animals. His practice was based in the coastal province of Kenya, Kilifi, before he decided to move to Massachusetts in 1998.

After coming to the United States, Dr. Amuguni worked as a Veterinary Technician in both emergency and general practice. He has been practicing small animal emergency medicine for the past 10 years and has a wealth of experience in emergency veterinary care. Dr. Amuguni enjoys working in emergency medicine and takes a special interest in veterinary surgery. In his spare time, Dr. Amuguni enjoys touring and taking road trips, especially long-distance train rides.

Westford Emergency Veterinary StaffCindy Cesar, DVM

Dr. Cindy Cesar was raised in Providence, Rhode Island, and knew from a very young age that veterinary medicine is what she wanted to do when she grew up. She graduated from Rhode Island College with a B.S. in Biology and a minor and Chemistry, then took a few years off to work with the animals at her local zoo and a small animal practice close to home. After that, she went on to further her education and obtained her veterinary degree from Cummings School of Veterinary Medicine at Tufts University in 2019.

Dr. Cesar continued her training in a vigorous internship at Tufts Veterinary Emergency Treatment & Specialties in Walpole, MA. After completing the program in 2020, she discovered that emergency medicine was where her passion was and joined our team here at Westford Veterinary Emergency and Referral Center.

When not in the hospital, Dr. Cesar likes to spend time outdoors, kayaking, reading, binge-watching Netflix series, and traveling. Her favorite thing to do is try new cuisines around the world and sharing snacks and making memories with her fiancé, James, her two dogs, Maggie and Gracie, and her cats, Mosque and Ellie.

Westford Emergency VeterinariansChristian J. D'Orazio, DVM

Dr. Chris D'Orazio is a graduate of Ross University School of Veterinary Medicine. He received his clinical training at the University of Missouri. Before becoming a veterinarian, he was a veterinary technician for many years at hospitals throughout New England, including the Intensive Care Unit at Tufts University. With a strong interest in veterinary emergency medicine and surgery, Dr. Chris has dedicated his professional life to providing the best possible care for animals needing emergency and critical care. He lives with his wife on a local farm, and they have four horses, several cats and a sheltie named Belle.

Westford Emergency VeterinariansRachel Duffany, DVM, Director of Emergency Services

Dr. Rachel Duffany grew up in Watertown, New York and developed her passions for veterinary practices at an early age. Dr. Duffany vividly recalls her 7th birthday party at Old McDonald’s Farm as being the instigator that made her want to become a veterinarian. She followed her passions throughout high school, enrolling in a course called “New Vision,” which enabled Dr. Duffany to spend 3 hours each day of her senior year rotating through different human and veterinary medical fields.

Dr. Duffany began working for Westford Veterinary Center in January of 2018. Having attended St. Lawrence University, Dr. Duffany graduated Cum Laude in 2011 with a major in biology and minors in chemistry and sports medicine. After undergraduate school, she went on to pursue her doctorate from Ross University School of Veterinary Medicine. Dr. Duffany graduated from veterinary school in 2015 with honors, and hasn’t looks back since.

“I enjoy being a veterinarian because every day is a different adventure,” Dr. Duffany says. “It is rare to have two days that provide the same challenges, and solving puzzles is something I thoroughly enjoy.”

At home, Dr. Duffany enjoys passing the time playing softball, hiking, partaking in outdoor activities, going to the beach or doing anything on the water, and reading a good page turner. She owns a German Shepherd named Kyzer, a Pitbull named Rizzo, and a Pitbull/Island Mutt mix named Viola.

Westford Emergency VeterinariansSheela Kerr, DVM

A Massachusetts native, Dr. Sheela Kerr always wanted to be a veterinarian. She grew up always seeming to find the stray cat to bring home and pet sitting for all the neighborhood animals.

After graduating from Worcester Polytechnic Institute, she moved to Indiana where she studied veterinary medicine at Purdue University. Upon earning her DVM degree in 2005, she moved back to Massachusetts.

Dr. Kerr has been working in small animal medicine ever since. Previously she has been employed at various general practices in Central Massachusetts. While she enjoyed the relationship developed with both clients and patients she decided to join Westford Veterinary Emergency and Referral Center and switch from preventative medicine to urgent care.

Outside of work Dr. Kerr enjoys reading, camping, hiking, and spending time with her family. Her and her husband abide by the law of twos – two dogs, two cats, two kids – to keep their lives crazy yet manageable.

Westford Emergency Veterinary StaffStacey Lauer, DVM

Emergency Clinician Dr. Stacey Lauer began practicing at Westford Veterinary Emergency & Clinic Care in April 2016. Originally from Long Island, NY, Dr. Lauer earned bachelor's degrees in biology and psychology from University of Rochester. She earned her Doctorate of Veterinary Medicine in 1993 from Oklahoma State University College of Veterinary Medicine.

Dr. Lauer is a member of the American Veterinary Medical Association, the Massachusetts Veterinary Medical Association, and the New Hampshire Veterinary Medical Association. She is highly interested in internal medicine. Furthermore, Dr. Lauer has performed pet assisted therapy in Portland, OR and Derry, NH.

At home, Dr. Lauer has a black lab named Jackie, one cat named Chip, and a dove named Bernice. She enjoys hiking, kayaking and gardening.

Westford Emergency VeterinariansKarolina Preisner, DVM

Dr. Preisner received her Doctor of Veterinary Medicine from Colorado State University in 2013. After vet school, she completed an additional year of rigorous training during an internship at a small animal veterinary specialty hospital in Loveland, Colorado. After completing her internship, Dr. Preisner moved to Salem, Oregon where she practiced for one year prior to moving to Las Vegas. Dr. Preisner practiced in Las Vegas for two years prior to moving back to the East Coast to be closer to her family.

Dr. Preisner was born in Poland, but grew up primarily in New York. She received her undergraduate degree at Boston University, earning a Bachelor of Arts, with Specialization in Marine Science. She graduated with honors (Cum Laude), having completed an independent research study that was performed at the New England Aquarium. Dr. Preisner’s undergraduate education afforded her the opportunity to study abroad in Ecuador, where she had the opportunity to live and study in the Amazon Rainforest at the Tiputini Biodiversity Research Station.

Dr. Preisner is an outdoor enthusiast, who loves hiking with her Pitbull, Olivia. In her spare time, she also practices yoga, is an avid runner and enjoys quilting. Dr. Preisner’s furry family also includes two cats, Nugget and Mowgli.

Dr. Preisner’s primary veterinary interests include neurology, internal medicine, and soft tissue surgery. She is a staunch proponent of client education and strives to make sure that owners have all the information they need to make well-informed decisions about their pet’s care.

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