For Appointments Call: 978-927-3622
Meet the Staff of BANHC2021-08-03T17:21:20-04:00

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. She became certified in Veterinary Homeopathy by the Academy of Veterinary Homeopathy in 1996. 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 girls, Mia and Amy. They share their home with Jed and Lily, two cats from Northeast Animal Shelter and have helped out at the clinic over the summer months. She is very active and enjoys skiing, cycling and coaching her girls’ soccer teams for Lynn Youth Soccer. She completed several triathlons including the Lake Placid Ironman in 2009.

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.

Dr. Geoff Clark
Mobile Surgeon

Dr. Geoff Clark is our board certified mobile surgeon. He travels to BANHC with his technician Lacey for orthopedic and advanced soft tissue surgeries. He completed both his undergraduate degree and his veterinary medicine degree at University California-Davis School of Veterinary Medicine graduating in 1986. He completed his residency at Tufts University of Veterinary Medicine where he was one of my surgical residents!

Dr. Clark started VSNE, Veterinary Surgery of New England in 1999 and travels to hospitals in New Hampshire where he is based as well as Maine and Massachusetts. Being able to travel to our hospital allows us to offer board certified surgical care for our patients in the comfort and convenience of their familiar environment. He has published numerous scientific papers on a variety of surgical topics, been a contributing author to four veterinary textbooks and has been an invited speaker at more than 70 veterinary meetings. He specializes in canine knee surgery with interests in fracture repair and oncology cases.

Dr Clark resides in Durham NH with his family their home is shared with three cats, an English Setter, Willow, and Francis the wonder pug.

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!


Annabelle lives in western New Hampshire with her wife, Emma. They have 2 dogs — Tripp, a 4 year old Great Pyrenees and Wallis, a 1 year old Potcake, as well as two black cats named Arya and Batty Orion. They are also expecting a baby in February 2021! Annabelle started working with Dr. Crowley in 2018 and is happy to continue working remotely with this amazing practice.

In her free time, she enjoys working on her new house and spending time with family and all the animals she can.


Catie started working with BANHC in the summer of 2019. She is a 2018 Essex Tech graduate and she majors in biomedical science with a pre- veterinary track at UNH.

When Catie is not at the clinic she enjoys hiking with her two dogs (Charlie a Golden Retriever mix and Nellie a Shepard mix) in Lynn woods. Catie also has a chinchilla named Phineas who is a great addition to her family. She enjoys playing club hockey at UNH and is a part of the UNH pre- vet club.  She helps out at the Lynn learn to skate program at the Connery Arena whenever she can.


Stuart came to BANHC in 2010 when he was around 2 years old and has been living happily at the clinic ever since. He is a bit of a troublemaker who has a love for anything plastic and never turns down food. You can usually find him sleeping next to the fish tank or chasing imaginary flies around the clinic. Despite his few quirks, he has been a welcome addition to the clinic.

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