For Appointments Call: 978-927-3622

Meet the Staff of BANHC

Meet the Staff of BANHC2024-02-22T15:15:35-05:00

Dr. Nancy Crowley

Dr. Nancy Crowley is a native of Boston and graduated from Tufts University School of Veterinary Medicine in 1992. After completing an Internship at Angell Memorial in Boston, she worked on the South Shore then in Salem at Hawthorne Animal Hospital. In 1998, she started the Beverly Animal Natural Health Center to focus on her niche of practicing holistic veterinary care for dogs and cats.

Wellness health care, client education, nutrition and dentistry are just a few of her passions. She is married to Erik Hatfield and has two daughters, Mia and Amy. They share their home with Jed and Lily, two cats from Northeast Animal Shelter. Dr Crowley is a member of the AVMA, MVMA, and a long time member of the Veterinary Association of the North Shore, a local group of our veterinary colleagues that provide camaraderie and continuing education to the veterinarians of the North Shore.

Dr. Crowley’s email address is note: Dr. Crowley does not check email every day, so do not use this email to seek medical advice for your pets. Please call the office to make an appointment at 978-927-3622.

Michael Estrin, MPH, DVM, DACVIM
Estrin Veterinary Mobile Ultrasound, PLLC

Dr. Estrin received his Doctor of Veterinary Medicine degree from the University of Minnesota College of Veterinary Medicine in
2001. He completed an internship in small animal medicine and surgery at The Animal Medical Center in New York and then returned
to the University of Minnesota for residency training in small animal internal medicine. He has practiced internal medicine at referral hospitals in Minnesota, Missouri, and Massachusetts, and has worked as a consultant for IDEXX Laboratories. While consulting with IDEXX, Dr. Estrin earned his Master’s degree in Public Health with a concentration in epidemiology from Boston University. In 2014, he completed a postdoctoral fellowship at the Division of Comparative Medicine at MIT where his research involved the treatment of influenza virus infections with host-directed combinatorial RNA interference. In 2018, he started a mobile ultrasound service and
enjoys traveling to veterinary clinics in the area, helping veterinarians in the management of their more challenging patients.

Dr. Estrin uses ultrasound extensively in practice, finding it to be a valuable part of the patient database and extremely useful in guiding additional diagnostic and treatment recommendations. We are so grateful to have him be a part of the BANHC team to provide great diagnostics to our patients in house!


Carissa has been working remotely for BANHC from Alaska since January of 2022. A great addition to the staff, she helps us out remotely with so many reception tasks. Carissa is a military wife that currently calls Alaska home. She has worked alongside veterinary medicine for the better part of 10 years as a veterinary technician. She has two dogs- Ranger, a black Labrador Retriever; Scout, a Beagle, and one cat, Stormy. In her free time, she enjoys being outdoors hiking, and spending quality time with her two sweet sons and husband.


Violet began working at BANHC in the fall of 2021. After graduating from Beverly High School in 2023, she is now studying at animal science at UNH and works on her breaks from college. Violet loves to hike with her Tibetan Terrier Miles and has a rabbit named Zuko.


Always willing to lend a hand, our veterinary assistant makes sure your pet is in good hands.


Adopted from NEAS in July of 2022, Karlie is our four legged assistant when she wants to be! A feline that prefers dogs to cats, especially dogs with fluffy tails, she keeps us entertained.

Remembering Stuart

Stuart worked his last shift as the hospital coordinator cat on Thursday March 16th. He never had to interview for the position. He showed up at the outside benches at the old 409 Cabot Street location in a carrier with nothing but his fur coat.
An indispensable asset to the clinic, he quickly became an expert at lounging in the sunshine with Tucker, making sure that the heating pads worked and helping the staff with any needed computer skills.
After Tucker’s passing Stuart became our one and only. He supervised our move to the Cummings center as well as our later expansion. During the pandemic, sometimes he was my only coworker in those early days. Karlie came along in July of 2022 and he taught her all he could..

We are so grateful for all the days that we get to share with our animals. The compassion, the love that they show us is truly immeasurable. I am forever grateful that someone dropped him off…..

Thanks Stuart for all your hard work and affection. You did your job so very well.

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