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Animals age at a faster rate than humans do, and your pet's health needs will evolve over time. Use this chart to figure out your pet's age in human years, and check with your veterinarian to establish a wellness plan specific to your young, adult or senior pet.

Pet Ages & Stages Chart

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The veterinary resources featured on this page provide useful information to pet owners on a variety of topics related to veterinary medicine and pet health care.

Animal Breed Associations

Animal Shelters

Humane Societies

Pet Grief Support

Pet Insurance

Pet Products

Veterinary Education


Dr. Patricia Cairns, DVM with Dog ColbyA general practitioner at Norwell Veterinary Hospital since 1998, Dr. Patricia Cairns is now our Co-Chief of Staff. Originally from Glasgow, Scotland, she completed her undergraduate education at C.W. Post College and received her Bachelor's Degree in Biology and Chemistry in 1985. She continued her education at Cornell University New York State College of Veterinary Medicine and was awarded her Doctorate of Veterinary Medicine in 1989. Her professional interests include internal medicine, dentistry, soft-tissue surgery and dermatology.

When she's not at the hospital, Dr. Cairns loves spending time outdoors and can usually be found hiking, kayaking, camping and skiing in the winter. She and her husband, Darren Baker, a biochemist, have three children, Cameron, Jacqui and Graeme. Their family also includes Colby, a sweet black lab.

Dr. Tracey Kelleher, DVMDr. Kelleher has cared for pets at Norwell Veterinary Hospital since 1994, and is now our Co- Chief of Staff. She completed her undergraduate studies at Cornell University in 1983 and then continued her veterinary education at the Cornell University New York State College of Veterinary Medicine. She was awarded her DVM degree in 1987.

Dr. Kelleher is particularly interested in dermatology, internal medicine, geriatric medicine and nutrition. She is very excited about using Norwell's Therapeutic Laser and looks forward to seeing her patients benefit from the extensive applications of photobiomodulation ranging from pain relief to wound healing. Dr. Kelleher enjoys working with her fabulous team at Norwell Veterinary Hospital and takes pride in being able to provide a high quality of care to her clients and patients.

Outside of work, Dr. Kelleher stays fit by running, biking and hiking with her two Labs Georgie and Lily. She and her husband and two adult daughters also enjoy spending time together on the water in the summer and skiing in the winter. The newest members of the Kelleher family are two adorable cats named Maisey and Mackerel who were found abandoned as kittens and bottle fed by the staff at Norwell.

Dr. Maria Sullivan, DVM with Dog Lulu Dr. Sullivan joined Norwell Veterinary Hospital in 2011. She received her undergraduate degree from the University of New Hampshire in 2003 and then completed her veterinary studies at Tufts University, earning her DVM degree in 2010. Dr. Sullivan then moved to Brooklyn, New York to complete a small animal internship at the Veterinary Emergency and Referral group.

Dr. Sullivan has known she wanted to be a veterinarian since the second grade. She has been working in animal hospitals since she was in high school and was a veterinary technician for several years before attending veterinary school at Tufts. Dr. Sullivan’s professional interests include emergency and critical care, internal medicine and preventive care.

In her spare time, Dr. Sullivan and her husband spend their time chasing around their two young children. Her family also includes an adorable mixed breed dog named Lulu Lemon, who she rescued from Scituate Animal Shelter after she needed her leg amputated from a prior injury.

Dr. Heidi Bock, DVM with dog Betty BoopDr. Bock is a veterinarian at Norwell Veterinary Hospital, joining us in July 2011. She studied at the University of Delaware, receiving her undergraduate degree in 2006, and then went on to earn her DVM degree in 2010 from Atlantic Veterinary College (University of Prince Edward Island). She completed a 13 month internship in small animal medicine and surgery at VCA South Shore Animal Hospital in Weymouth before joining our team.

Dr. Bock is interested in internal medicine, exotic animal medicine, and senior pet wellness. She has really enjoyed developing long term relationships with her clients and their companions! Outside of work, Dr. Bock enjoys traveling (especially places off the beaten path), photography, anything outdoors, and volunteering for community service in and around the Boston area. Her long term aspiration is to devote time to Vets Without Borders. She also loves spending time with her sweet beagle, Betty Boop!

Dr. Katherine C. Horigan, DVMJoining our NVH family in 2015, Dr. KC Horigan is a Scituate native who is thrilled to back near her hometown! She attended undergrad at Lafayette College, completed her Master's degree at the University of Vermont, and went on to attain her Doctorate in Veterinary Medicine from Tufts University.

Dr. KC Horigan’s favorite part of veterinary medicine is the field of pain management which often includes designing a plan to keep your arthritic pet comfortable as they continue to age. This lead to her recent certification in Veterinary Acupuncture and training in Laser Therapy. Her other interests include nutrition and weight control, behavior, dermatology, surgery and dentistry.

Married to another vet, Dr. Horigan and her husband have found that their hearts have tripled in size since the birth of their tiny human. Her other loves include laughing, gardening, painting, pottery and reading. She also enjoys spending her time with her pets: two dogs, Tucker and Kiva, one cantankerous pot-belly pig named Pink Floyd and many backyard chickens!

Dr. KC Horigan is so excited to meet you and your pets.

295 Washington Street
Norwell, MA 02061
P: (781) 659-4911
F: (781) 659-1327

It's official —Norwell Veterinary Hospital has been approved by the American Association of Feline Practitioners (AAFP) as a Cat Friendly Practice – Silver Status!

Animal House of Chicago is an AAFP Cat Friendly PracticeWe recently underwent some major renovations in an effort to achieve this high standard of feline friendliness, including adding brand new cat condos and play area for boarding, as well as exclusive feline waiting area and exam rooms. Learn more about our feline boarding services here.

Radar enjoys cuddle time with LindsayOur newly expanded pet boarding facility is now open! Board your dog or cat with us with total confidence knowing that your trusted veterinarian team is close by. 

In addition to the spacious kennels and separate feline boarding condos, we also offer individual play and snuggle time, and other extra amenities. Learn all about our pet boarding services and requirements here.

Book your pet's next vacation with us by calling (781) 659-4911 today!

We are thrilled to share that we have updated our hospital and expanded our pet boarding services to better serve you and your pets!

The exciting new features include:

  • A brand new pet boarding facility with 9 spacious kennel runs and separate feline condos
  • Three additional exam rooms
  • New pharmacy and laboratory facilities 
  • A redesigned retail space
  • Revamped lobby with a separate cat-only waiting area 

It is our goal to make your pet's visit at Norwell Veterinary Hospital as comfortable and efficient as possible. With these additions, we look forward to providing decreased wait times, a more efficient workflow, and pet boarding that has the comforts of home with the reassurance that your veterinary team is close by. 

Call us at (781) 659-4911 with any questions, or to book your pet's next boarding stay with us.

Schedule Your Pet's Dental Cleaning Today and Ask About Our $50 Dental Discount!

Periodontal disease results from a buildup of plaque on your pet’s teeth. The bacteria associated with this plaque can spread to the space under the gum line, where it eats away at the root of the tooth, causing erosion, bone loss, abscess and may eventually result in the need for extraction of the tooth. Infections in the mouth are not only painful locally, but can also lead to the spread of bacteria through the blood stream to other organs like the heart, liver, and kidneys.

 Our team of veterinary professionals is dedicated to delivering the best customer service and compassionate care to you and your pets.

Veterinary Technician Elizabeth MacDonald, CVTLiz received a Bachelor’s degree in Veterinary Technology from Mount Ida College. She spent some time studying abroad in Belize prior to joining Norwell Veterinary Hospital in 2015. Liz is most interested in emergency medicine and surgery.

In her free time Liz and her husband enjoy camping and spending time outdoors.


Veterinary Technician Lydia Fulton, CVTLydia joined the Norwell Veterinary team as a technician in 2011. Her particular interests include nutrition, renal care, behavior, and illness prevention. Lydia is an eager volunteer to assist in bolstering confidence in patients who are fearful, worried, or aggressive. At home Lydia has three cats, Lightning, Shirley, and Jett Stream and two Shetland Sheepdogs, Indy and Radar.

Lydia went back to school in 2012 and graduated from Umass Boston with a Bachelor’s of Science in Nursing. Nurse Lydia will continue to work here at Norwell Vet part time, balancing her love of human patients and furry patients!

Veterinary Technician Erika Azuma with DogsErika began working at Norwell Veterinary Hospital in August, 2017. She’s enjoying getting to know our clients and patients. Erika has a special interest in surgery.

She has a Cocker Spaniel mix named Elsa, a Greyhound named Katey and two cats, Piper and Loki. In her free time you’ll find her spending time with her own pets, hiking and taking pictures.


Veterinary Technician Kristin Baker Kristin joined Norwell Veterinary Hospital in April 2017. She enjoys providing client education, helping senior pets and doing nail trims. Kristin has a rescued Pit Bull named Monkey, and 3 rescued cats, Noble, Romeo, and Diva.

She volunteers for Last Hope K9 Rescue and is very passionate about animal rescue and fostering. In her free time you’ll find her hiking with Monkey and whatever other dog she might be fostering!


Veterinary Technician Heather Demille with Dog KevinHeather joined the Norwell Veterinary Hospital team in December 2014. The most rewarding part of her job is seeing the love and compassion our long-term clients share with their animals.

In Heather's free time, she enjoys hiking, biking, cooking, gardening and spending time with her husband John, son Harry and dog Kevin.


Deb has been working at Norwell Veterinary Hospital since 2003. She always enjoys spending time with our clients and their pets. Deb has a special interest in wellness care and preventive medicine.

In her free time, Deb loves to be outdoors; she enjoys hiking, camping, fishing, birding and spending time with her pets Sheriff, Sasha, James, Anthony, Elsa, and Moses.

Veterinary Technician Mariel McCann-LandolfiMariel has worked at Norwell Veterinary Hospital since March, 2017. Mariel has a soft spot for elderly pets, exotics... and anything with a squishy face. She has too many pets to list!

When not at work taking care of everyone else’s pets, you’ll find her at home taking care of her own.


Deb joined the Norwell Veterinary Hospital team in February 2008. She’s worn many hats since she started here, but has found her niche in pet surgery and pharmacology. Deb has three cats, Alice, Jimi, and Strider. Additionally, she has an adorable little dog, Jelly Bean and two guinea pigs, Beatrice and Bertrand.

Outside of work you’ll find Deb fishing, visiting theme parks and playing video games.