The Team

Joel Kaye, DVM
Having completed an internship at Angell in 1991, Dr. Kaye returned to Angell after extensive experience in private practice. He is a general practitioner, concentrating on preventive care and dermatology. Dr. Kaye is actively involved in developing the wellness program and setting vaccination guidelines. His primary clinical interests include dermatology, endocrinology and geriatric medicine.
Tufts University School of Veterinary Medicine, DVM, 1990
Emory University, BS, 1984
Angell Animal Medical Center, Internship in Medicine and Surgery, 1991


Lisa Maciorakowski, DVM
Dr. Maciorakowski is a general practioner. She provides wellness services and has a strong interest in preventative and feline medicine.

Tufts University School of Veterinary Medicine, DVM, 2002
Angell Animal Medical Center-Western New England, General Small Animal Internship 2002-2003


Angela Mazza, DVM
Dr. Mazza provides preventive health care, and assists with geriatric and urgent appointments and the management of patients with chronic disease. She uses all the available resources at Angell Animal Medical Center to provide pets with the most advanced and updated preventive and therapeutic care possible.
Tufts University School of Veterinary Medicine, DVM, 2003
Wellesley College, BA, 1999
Angell Animal Medical Center-Boston, Internship in Medicine and Surgery, 2003-2004


Susan O'Bell, DVM, MPH, DACVIM, Service Director
Upon completing an internship and residency, Dr. O'Bell became a practicing internist at Angell. After working for a year in internal medicine, she shifted to our General Medicine service which she now leads as Service Director.

Tufts University School of Veterinary Medicine, DVM, MPH, 2004
Angell Animal Medical Center, Fellowship in Internal Medicine, 2007-2008
Angell Animal Medical Center, Residency in Internal Medicine, 2005-2007
Angell Animal Medical Center, Rotating Internship in Small Animal Medicine and Surgery, 2004-2005
Diplomate, American College of Veterinary Internal Medicine


Kathleen C. O’Hara, BVetMed
Dr. O’Hara completed her BS in mechanical engineering along with the bioengineering option at Cornell University in 1998.  She then worked at the Research Tower at Cornell University’s College of Veterinary Medicine prior to attending the Royal Veterinary College in London, England in 2000.  After earning her degree in veterinary medicine, Dr. O’Hara completed a rotating internship at Angell in 2006.  Dr. O’Hara stayed at Angell following her internship and worked as receiving doctor on the emergency service.  In 2011 Dr. O’Hara joined the general medicine practice at Angell.

Royal Veterinary College, University of London, 2005
Cornell University, BS, 1998

Angell Animal Medical Center, Internship in Small Animal Medicine and Surgery, 2005-2006

Mara Ratnofsky, DVM
Dr. Ratnofsky practices general medicine. This includes preventive health care (examinations and vaccines), management of patients with chronic diseases such as diabetes and kidney failure, and appointments for pets requiring care for urgent conditions.
Tufts University School of Veterinary Medicine, DVM, 2003
Tufts University, BS, 1994
Angell Animal Medical Center-Boston, Internship in Small Animal Medicine and Surgery, 2003-2004

Doris Chow, CVT, General Medicine Technician
Doris received her Bachelor’s degree in Animal Science from UMass/Amherst. She has worked as a general medicine and surgery technician in Massachusetts for over 15 years, receiving her license as a Certified Veterinary Technician in 2004. Doris began her career with Angell Animal Medical Center as a member of the Clinic team in March 2010. In February 2012, she joined the General Medicine team as Dr. Susan O'Bell and Dr. Kate O'Hara's technician. In her free time she likes to travel, eat good food, and spend time with her husband, Albert and her cat, Oscar.

Shalea Daly, General Medicine Assistant
Shalea joined Angell in 2012 as the General Medicine Assistant to Dr. Ratnofsky.  Shalea is from Cohasset and Chappaquidick, Massachusetts, and graduated from University of Vermont in 2012 with a Bachelor’s degree in Animal Science and a minor in Studio Art.  She has worked with Marwari Horses, the UVM Horse Barn, and All Breed Rescue. She also served as the new animal product intern at Foodscience Corporation.  At Rosamond Gifford Zoo in Syracuse, NY she enjoyed working with exotics including elephants and lions, and her favorite, the Gray and Red wolves.   Shalea lives with her talkative Siamese Daphne and her Snowshoe cat Donovan.  Her art focuses on wolves, pets, and just about anything with four legs. When not at work, Shalea loves movies, heading to a beach on Martha’s Vineyard, and arts/crafts.

Devon Jantzen, General Medicine Assistant
Devon joined the General Medicine team in 2012. Having been raised on a farm in a small town in Rhode Island, she was engrained with a love of animals from a young age. Though her childhood was spent with everything from rabbits to pigs, Devon’s true passion was for horses. This led her to pursue an Associate’s degree in Veterinary Science with an understudy in Equine Science from Becker College in Worcester, MA. Throughout high school and college, Devon spent many hours volunteering and working at local animal shelters. Her fondness of domestic animals grew, and thus led her to partnership with Dr. Maciorakowski here at Angell. With her blue tick hound “Riley” and her husband Ben, Devon enjoys camping, horseback riding and being outdoors; her diva cats, “Peanut” and “Magnolia,” hold down the fort while they are away.

Juliette Lisek, General Medicine Assistant
Juliette recently graduated from Suffolk University with a Bachelor's Degree in Biology. She has always had a passion for working with animals and plans to attend veterinary school in the future to further her career. She has past experience working in small-animal, wildlife and exotic medicine. In her free time she enjoys traveling, spending time with friends, and going for runs by the cranberry bogs with her dogs, Shaq and Rocky.

Lauren Midi, General Medicine Technician
Lauren received her Bachelor’s degree in biology with a concentration in environmental sciences from Bridgewater State College. She has been in the veterinary field for over 10 years. In addition to helping her furry friends, Lauren has worked as a naturalist aboard the Captain John Boats in Plymouth, MA, educating people about New England marine wildlife and continues to volunteer with the New England Coastal Wildlife Alliance. In her free time Lauren loves the ocean and the beach, painting and art, cooking, and spending time with her family and 2 cats, Mimi and Scout.

Darcy Schondorf, General Medicine Assistant
Darcy has been with Angell since 2007 when she began working as an attendant in the Clinic. Darcy became a member of the General Medicine team in July 2008 and has been working with Dr.  Mazza as a General Medicine Assistant. During appointments Darcy speaks with owners about their pet’s medical history, discusses overall wellness and educates clients on topics including vaccines and monthly preventatives, and performs diagnostics procedures such as blood work. She also assists Dr. Mazza with client communication outside of appointments regarding lab results and fielding and addressing client concerns. Darcy enjoys the relationships she develops with clients and their pets and is happy to provide them with exceptional customer service to meet their individual needs. Outside of work, Darcy’s interests include her cat Ginny, kayaking and travelling.

Jeanne David-Lee, General Medicine Client Care Coordinator
Originally a client of Angell's Cardiology Service, Jeanne was so impressed with the level of care and compassion she received, she knew she would love to work here. She volunteered at our adoption center until accepting a position as a client liaison in 2010. Jeanne later assumed the role of General Medicine Client Care Coordinator in March of 2013. She has over 15 years of experience in Client Service, which when combined with her love for all animals, makes her a perfect fit on our General Medicine Team. She shares her home with her two dogs Diesel a Doberman, and Gisele a Pit Bull that she recently adopted from our shelter. 

Christine Wolczko, General Medicine Client Care Coordinator
Christine has been working with MSPCA-Angell since 2011 when she came to Angell as a Client Services Supervisor. She then transferred to the MSPCA Boston Adoption Center as a Program Coordinator from 2012-2014. In May of 2014, she assumed her current role of Client Care Coordinator for the General Medicine, Surgery and Oncology Services. Christine has a Siamese cat named Mishka, and enjoys spending her free time traveling, being outdoors and bicycling through Boston.

To schedule an appointment with the General Medicine service at Angell, please call 617 522-7282.