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Our Veterinarians

Dr. Molly Allen is board certified in veterinary anesthesiology and pain management.
Molly Allen
DVM, DACVAA
Anesthesiology & Pain Management
Molly Allen
DVM, DACVAA
Board Certified in Veterinary Anesthesia & Analgesia
Anesthesiology & Pain Management
Servicing Locations
Dr. Molly Allen is passionate about local and regional anesthesia, balanced and multimodal techniques to minimize systemic opioid use, and anesthesia for high-risk and critical patients.
  • Diplomate, American College of Veterinary Anesthesia & Analgesia
  • Residency, Veterinary Anesthesia and Pain Management, University of Wisconsin-Madison, WI
  • Internship, Equine Surgery & Anesthesia, Ballarat Veterinary Practice, Miners Rest, Victoria, Australia
  • Doctor of Veterinary Medicine, Tufts University, North Grafton, MA
  • Bachelor of Arts, Biochemistry, Smith College, Northampton, MA
Dr. Allen and her husband have a son, a dog named Madison, and cats Cameron and Charlie. Favorite pastimes include running, camping and hiking.
Dr. Heather Chalfant is an emergency medicine veterinarian. She is holding a black and white dog.
Heather Chalfant
VMD
Emergency Medicine
Heather Chalfant
VMD
Emergency Medicine
Servicing Locations
Dr. Heather Chalfant is particularly interested in the emergency presentation of endocrine disorders.
  • Internship, Small Animal Medicine/Surgery, University of Minnesota, St. Paul
  • Doctor of Veterinary Medicine, University of Pennsylvania, Philadelphia
  • Bachelor of Science, Lafayette College, Easton PA
Dr. Chalfant and her family, which includes two daughters, love anything outdoors, but especially biking, swimming, skiing, sledding and gardening.
Dr. Joseph Collins is a small animal medicine and surgery intern.
Joseph Collins
MLAM, DVM
Associate Veterinarian
Joseph Collins
MLAM, DVM
Associate Veterinarian
Servicing Locations
Dr. Joseph Collins is a Small Animal Medicine & Surgery intern. His clinical interests include enucleation and hemorrhagic gastroenteritis.
  • Doctor of Veterinary Medicine, Tufts University, North Grafton, MA
  • Master of ​Laboratory ​Animal Medicine, Tufts University, North Grafton, MA
  • Bachelor of Science, ​Chemical Biology, Saint Joseph’s University, Philadelphia, PA
Dr. Collins enjoys kayaking, cooking and watching scary movies. He is married and has two black cats.
Dr. Kristina DePaula is board certified in veterinary emergency and critical care medicine. She is sitting with two large dogs.
Kristina DePaula
DVM, DACVECC
Critical Care
Kristina DePaula
DVM, DACVECC
Board Certified in Veterinary Emergency & Critical Care
Critical Care
Servicing Locations
Dr. Kristina DePaula's particular clinical interests include trauma, coagulation disorders and sepsis.
  • Diplomate, American College of Veterinary Emergency & Critical Care
  • Residency, Emergency & Critical Care Medicine, Tufts University, North Grafton MA
  • Internship, Small Animal Medicine & Surgery, BluePearl Veterinary Partners, New York City NY
  • Doctor of Veterinary Medicine, Tufts University, North Grafton MA
  • Bachelor of Arts, College of the Holy Cross, Worcester MA
Dr. DePaula loves spending time outdoors with her husband and two dogs, River and Turner, and lounging on the couch with her two cats, Finn and Maki. Other favorite pastimes include travel, miniature golf, karaoke and cooking.
Dr. Kristina Foyo is a doctor in our emergency service.
Kristina Foyo
DVM
Emergency Medicine
Kristina Foyo
DVM
Emergency Medicine
Servicing Locations
Dr. Kristina Foyo’s clinical interests include trauma, shock, immune-mediated disorders and toxicity cases.
  • Internship, Small Animal Medicine and Surgery, New England Animal Medical Center, West Bridgewater MA
  • Doctor of Veterinary Medicine, Cornell University, Ithaca NY
  • Bachelor of Science, Animal Biology, University of Florida, Gainesville FL
Dr. Foyo and her husband enjoy hiking, rocking climbing and running Spartan races. They have three dachshunds, Fred, Ethel and Louie, and a bearded dragon.
Dr. Amy Goldstein is an emergency medicine veterinarian. She is sitting with a large dog.
Amy Goldstein
DVM
Emergency Medicine
Amy Goldstein
DVM
Emergency Medicine
Servicing Locations
Dr. Goldstein has a special interest in emergency treatment of endocrine diseases, toxins and feline medicine.
  • Doctor of Veterinary Medicine, Tufts Cummings School of Veterinary Medicine, North Grafton MA
  • Internship, Small Animal Medicine & Surgery, VCA South Shore Animal Hospital, Weymouth MA
  • Bachelor of Science, Lafayette College, Easton PA
Dr. Goldstein enjoys traveling, hiking, reading and spending time with her family and friends, including her four cats.
Dr. Amanda Hill is a small animal medicine and surgery intern. She is holding a pug.
Amanda Hill
DVM
Associate Veterinarian
Amanda Hill
DVM
Associate Veterinarian
Servicing Locations
Dr. Hill is a small animal medicine and surgery intern. In her clinical work, she likes to focus on radiology and ultrasound testing.
  • Doctor of Veterinary Medicine, Auburn University, AL
  • Bachelor of Science, Biology, University of Massachusetts, Dartmouth
Dr. Hill likes to hike and kayak with her fiancé and her 2-year-old pug named Olive. She also enjoys white water rafting, camping and any outdoors activity.
Dr. Kathleen Kanjer is an emergency medicine veterinarian. She is holding a black and white terrier.
Kathleen Kanjer
DVM
Emergency Medicine
Kathleen Kanjer
DVM
Emergency Medicine
Servicing Locations
Dr. Kathleen Kanjer has years of experience working in emergency medicine, critical care and general practice. Her special interests include emergency procedures and critical care cases.
  • Internship, Small Animal Medicine & Surgery, Angell Animal Medical Center, Boston MA
  • Doctor of Veterinary Medicine, University of California, Davis
  • Bachelor of Science, Animal Physiology and Neuroscience, University of California, Davis
Dr. Kanjer enjoys spending time outdoors with her husband, young son and terrier mix, Molly.
Dr. Erin McGowan is board certified in veterinary emergency and critical care medicine. She is sitting outside on a green bench with a large dog who is wearing a bandana.
Erin McGowan
VMD, DACVECC
Critical Care
Erin McGowan
VMD, DACVECC
Board Certified in Veterinary Emergency & Critical Care
Critical Care
Servicing Locations
Dr. Erin McGowan's clinical interests include coagulopathies, fluid therapy, systemic inflammatory response syndrome and sepsis.
  • Diplomate, American College of Veterinary Emergency & Critical Care
  • Residency, Emergency and Critical Care, University of Pennsylvania, Philadelphia
  • Internship, Small Animal Medicine & Surgery, Red Bank Veterinary Hospital, Tinton Falls NJ
  • Doctor of Veterinary Medicine, University of Pennsylvania, Philadelphia
  • Bachelor of Arts, Chemistry, Colby College, Waterville ME
Dr. McGowan's favorite pastimes include boxing, hiking and traveling with her husband. They share their home with pit bull mix Barnie, and cats Frank, Kyle and Ozzie.
Dr. Caleb Murphy is an emergency medicine veterinarian. He is sitting with a large dog.
Caleb Murphy
VMD
Emergency Medicine
Caleb Murphy
VMD
Emergency Medicine
Servicing Locations
Dr. Caleb Murphy's professional interests include shock, trauma, and urinary and reproductive emergencies.
  • Internship, Small Animal Medicine & Surgery, BluePearl Veterinary Partners, New York City
  • Doctor of Veterinary Medicine, University of Pennsylvania, Philadelphia
  • Bachelor of Arts, Amherst College, Amherst MA
Dr. Murphy lives in Waltham with his wife and young son, as well as two cats and a lazy greyhound. Dr. Murphy moved his family from Brooklyn in order to be closer to the Boston Red Sox.
Dr. Mary Ann Nieves is board certified in veterinary surgery. She is sitting with an Irish setter.
Mary Ann Nieves
DVM, MS, DACVS
Surgery
Mary Ann Nieves
DVM, MS, DACVS
Board Certified in Veterinary Surgery
Surgery
Servicing Locations
Before joining us, Dr. Mary Ann Nieves taught clinical and didactic small animal surgery and dentistry at Iowa State University. She has served as a surgeon as the need arose at several other teaching institutions including the Atlantic Veterinary College, Mississippi State University and Louisiana State University. She performs and enjoys soft tissue, orthopedic and neurosurgery, but has a special interest in surgical oncology, orthopedic and maxillofacial surgery, and pain management. Dr. Nieves is a reviewer for the Journal of the American Animal Hospital Association.
  • Certification, Tibial Plateau Leveling Osteotomy
  • Certification, PennHip Evaluation
  • Certification, Advanced Total Hip Replacement Workshop
  • Diplomate, American College of Veterinary Surgeons
  • Residency, Surgery, Iowa State University, Ames
  • Doctor of Veterinary Medicine, Oklahoma State University, Stillwater
  • Master of Science, Veterinary Surgery, Iowa State University, Ames
  • Bachelor of Arts, University of Colorado, Boulder
Dr. Nieves enjoys time with her family including her four-footed family Ginger, Milo, Twiggy and Lucy, coastal and deep sea fishing, sailing, hiking, gardening, and traveling to see friends and family.
Dr. Melisa Rosenthal is board certified in small animal internal medicine.
Melisa Rosenthal
DVM, DACVIM (SAIM)
Internal Medicine
Melisa Rosenthal
DVM, DACVIM (SAIM)
Board Certified in Small Animal Internal Medicine
Internal Medicine
Servicing Locations
Dr. Melisa Rosenthal has a particular interest in nephrology and all manner of kidney diseases. She is excited about the advances in dialysis as well as all types of minimally invasive interventional procedures.
  • Diplomate, American College of Veterinary Internal Medicine (Small Animal Internal Medicine)
  • Residency, Small Animal Internal Medicine, Tufts University, North Grafton MA
  • Internship, Small Animal Medicine & Surgery, University of Pennsylvania, Philadelphia
  • Doctor of Veterinary Medicine, Cornell University, Ithaca NY
  • Bachelor of Science, Biochemistry and Cell Biology, Rice University, Houston TX
  • Bachelor of Arts, Hispanic Studies, Rice University, Houston TX
Dr. Rosenthal enjoys reading and bird watching, a hobby she developed while working in ecological research in college. She and her husband, a doctor of human medicine, have three cats, Naomi, Aria and Nora.
Dr. Leslie Schwarz is board certified in veterinary radiology. She is sitting with a yellow lab.
Leslie Schwarz
DVM, MS, DACVR
Diagnostic Imaging
Leslie Schwarz
DVM, MS, DACVR
Board Certified in Veterinary Radiology
Diagnostic Imaging
Servicing Locations
Dr. Leslie Schwarz’s professional interests include small animal radiology, abdominal and non-cardiac thoracic ultrasound and CT. She has a particular interest in the imaging of oncology patients.
  • Diplomate, American College of Veterinary Radiology
  • Residency, Veterinary Radiology, Tufts University, North Grafton MA
  • Internship, Small Animal Medicine & Surgery, Angell Memorial Animal Hospital, Boston MA
  • Doctor of Veterinary Medicine, University of Missouri, Columbia
  • Master of Science, Animal Science, Rutgers University, New Brunswick NJ
  • Bachelor of Science, Cook College, Rutgers University, New Brunswick NJ
When Dr. Schwarz is not busy attending her children’s various sports, music, or school events, she enjoys skiing, traveling with her family, and keeping her yellow lab, Chica, out of trouble.
Dr. Bari Spielman is board certified in veterinary internal medicine.
Bari Spielman
DVM, DACVIM
Internal Medicine
Bari Spielman
DVM, DACVIM
Board Certified in Veterinary Internal Medicine
Internal Medicine
Servicing Locations
Dr. Bari Spielman has a strong interest in gastroenterology and GI endoscopy as well as endocrinology, hepatic and renal disease, and immune mediated disorders. In 2001, she became head of internal medicine at the Veterinary Emergency and Specialty Center of New England, which is now BluePearl Veterinary Partners.
  • Diplomate, American College of Veterinary Internal Medicine
  • Residency, Internal Medicine, Animal Medical Center, New York City
  • Internship, General Medicine & Surgery, Oradell Animal Hospital, Oradell NJ
  • Doctor of Veterinary Medicine, University of Tennessee, Knoxville
  • Bachelor of Science, University of Massachusetts, Amherst
Dr. Spielman is a maniacal sports fan, especially loyal to the Patriots, Bruins, Red Sox and Volunteers. She is knee deep in dirt all summer, tending to her many gardens.
Dr. Katherine Suter is a small animal medicine and surgery intern.
Katherine Suter
DVM
Associate Veterinarian
Katherine Suter
DVM
Associate Veterinarian
Servicing Locations
Dr. Suter is a small animal medicine and surgery intern. Her clinical interests include diagnostic imaging and ultrasound use with emergency patients.
Away from the hospital, Dr. Suter enjoys spending time with her husband and their cats, Chippy and Seaborg. She also likes collecting antique dishes.
Dr. Marcia Whiteley is board certified in veterinary radiology. She is holding a gray tabby cat.
Marcia Whiteley
DVM, DACVR
Diagnostic Imaging
Marcia Whiteley
DVM, DACVR
Board Certified in Veterinary Radiology
Diagnostic Imaging
Servicing Locations
Dr. Marcia Biber Whiteley is an active lecturer on imaging topics for veterinarians and veterinary technicians throughout the Midwest and Northeast. She is especially interested in non-cardiac and abdominal ultrasound and radiology.
  • Diplomate, American College of Veterinary Radiology
  • Residency, Veterinary Radiology, University of Minnesota, St. Paul
  • Doctor of Veterinary Medicine, Purdue University, West Lafayette IN
  • Bachelor of Science, Cook College, Rutgers University, New Brunswick NJ
You can find Dr. Whitely wrapped up in a good book, cooking, at the theatre, or cheering on her beloved St. Louis Cardinals.
Dr. Clara Williams is board certified in veterinary ophthalmology. She is sitting with a large black dog wearing a blue bandana.
Clara Williams
DVM, MS, DACVO
Ophthalmology
Clara Williams
DVM, MS, DACVO
Board Certified in Veterinary Ophthalmology
Ophthalmology
Servicing Locations
Dr. Clara Williams understands that vision is a privilege and finds it gratifying to be someone who helps preserve it. She has traveled to Bolivia, Colombia and the Dominican Republic to provide ophthalmology education to faculty and students of veterinary schools. Her favorite procedure is bilateral cataract surgery because it provides her the opportunity to potentially restore vision.
  • Diplomate, American College of Veterinary Ophthalmologists
  • Residency, Ophthalmology, University of Georgia, Athens
  • Master of Science, Pathology, University of Georgia, Athens
  • Internship, Small Animal Medicine & Surgery, Tuskegee University, AL
  • Doctor of Veterinary Medicine, Universidad de Antioquia, Medillin, Colombia
Married with two stepchildren and five grandchildren, Dr. Williams enjoys visiting her home country of Colombia to see her mother and siblings. She is an avid reader and road biker and enjoys that her husband does the cooking. The family has three pets: Labrador retriever Bruno, and cats Lunita and Tiglo.
Dr. Alexis Zallas is an emergency medicine veterinarian. She is hugging a small black dog.
Alexis Zallas
DVM
Emergency Medicine
Alexis Zallas
DVM
Emergency Medicine
Servicing Locations
Some or Dr. Alexis Zallas' favorites include internal medicine cases like diabetes or Addison’s disease, oncologic emergencies such as hemangiosarcoma, and surgical emergencies like gastric dilatation volvulus and laceration repairs. She also enjoys treating clotting disorders and pericardial effusion.
  • Internship, Small Animal Medicine & Surgery, VCA Shoreline & VCA Norwalk Veterinary Referral and Emergency Centers, CT
  • Doctor of Veterinary Medicine, University of Missouri, Columbia
  • Bachelor of Arts, Biology, Regis College, Weston MA
Passionate about her Greek heritage, Dr. Zallas has been to Greece multiple times. She actively participates in Greek events in the Boston community and loves cooking with her mother while listening to Greek music. She also participates in 18th century historical interpretation.