Meet the Harmony Veterinarians

Dr. John Clines
Associate Veterinarian and Medical Director

Degree: University of Tennessee College of Veterinary Medicine 1998

Advanced Training: Two years of post-graduate interneships in small animal internal medicine, ophthalmology, emergency medicine, and surgery.

Small animal acupuncture training from Chi Institute of Traditional Chinese Veterinary Medicine.

Special Interests: Ophthalmology, dentistry, geriatric medicine, internal medicine, ultrasound diagnostics, soft tissue surgery, and acupuncture.

Hobbies: Fishing, golf, personal fitness, boating, and spending time with his wife and two children. 

Dr. Heather Johnston
Associate Veterinarian and Medical Director of Exotics

Degree: The Ohio State University College of Veterinary Medicine 2002 

Awards and Certifications: Iams Veterinary Emergency and Critical Care Award, Association of Avian Veterinarians Focus Courses in: Pathology, Diagnostics, Disease, Therapy, Surgery and Anesthesia.

Facility Veterinarian: Busch Wildlife Sanctuary.

Special Interests in Veterinary Medicine: I really do love it all from new puppy and kitten appointments, to complicated internal medicine and surgery cases, to working with birds and exotics. All of it presents it own unique challenges and allows me to love going to work everyday.

Member: American Veterinary Medical Association, Association of Avian Veterinarians, Association of Exotic Mammal Veterinarian, Association of Reptile and Amphibian Veterinarians, and American Association of Zoo Veterinarians

Personal Interests: Swimming, fishing, photography, and all of the great outdoors! 

Dr. Jillian Sweet

Dr. Jillian Sweet is a Jupiter Florida native, born and raised. As a Jupiter High School alum she was active in many sports and extra-curricular activities such as soccer, track, national honor society and class president.

After spending 4 years in the Midwest for veterinary school, Dr. Sweet returned to practice veterinary medicine in South Florida.

University of Florida - Bachelors of Science degree in Zoology. Class of 2011 GO GATORS!

Iowa State University College of Veterinary Medicine. Class of       2015 GO CYCLONES!

Dr. Sweet enjoys all aspects of Veterinary medicine with a strong interest in internal medicine and surgery.

She has performed surgeries on many different species ranging from panthers, skunks, racoons, kinkajous and more! She took elective courses in exotic animal medicine including a rotation spent working with zoo animals.

She also has a soft spot in her heart for kitties. At the age of 14 she started fostering cats and kittens ranging in age from just days old to 13 years old. To date she has fostered over 100 cats/kittens and continues to remain active in shelter groups and fostering.

AVMA. American Veterinary Medical Association
FVMA. Florida Veterinary Medical Association

Dr. Sweet received recognition for her efforts in shelter animal medicine which included performing research in the field, running a feral cat clinic to help control overpopulation and hours of volunteering. From these efforts she received a 2nd place research presentation award and the Maddies Shelter Medicine Award during her 4th year of veterinary school.

On her free time Dr. Sweet enjoys being active and doing anything outside. Specifically boating and going to the beach with a good book. She's an avid college football fan and she loves her fluffy orange kitty named Charlie.


Dr. James Davis
Owner and Veterinarian

Dr. Davis graduated from Ross University School of Veterinary Medicine in 2001 and completed his final year of clinical training at The University of Georgia. His interests include ultrasonography, orthopedic surgery, dermatology and urology. 

As an undergraduate student in biology, Dr. Davis worked for 2 years as an assistant in the animal medical sciences. This experience, combined with his love for animals, led him to choose a path to becoming a veterinarian.

“We have the best job in the world," Dr. Davis says. "Diagnosing and treating medical conditions in pets can be challenging and rewarding, but preventing disease through early diagnostics and client education is far more rewarding.” 

Dr. Davis strongly believes in the importance of community service. By playing an active role with local programs, he hopes to impact the community by always giving back. 

His family includes his wife Susie, daughters Ann and Helen, 2 cats “Poof” and “Kittyboo” and a Cavalier King Charles Spaniel named “Snickers”. His hobbies include cycling, hiking, and fishing. 


“Your front desk staff is fabulous! They made me feel like Lola and I were the best duo in town. The service was very good and they completed it in record time.”
– Elyse Rose-Trupiano

“Great facility and feel very comfortable leaving Sam (our Bengal cat) there. Highly recommend to anyone who wants their loved pet in capable and pet friendly hands!”
– Michael & Ellen Rierson

“We’ve loved you guys for 12 years!”
– Bob Olson

“Your staff was very helpful and good with my cat I would for sure bring her back for boarding she was very good when I picked her up she was not stressed out all that is very important to me. Thanks to all the staff that took care of her when u have people that care it makes me feel less stressed about leaving her...Thank u everyone.”
– Cherie Wade

“Everyone there took the time to calm and reassure both myself and my nervous dog. We cannot thank you enough for being warm, helpful, and concerned. We love you guys!!!!”
– Jeff Farwell

“I have been coming to Harmony Animal Hospital for years. Very, well satisfied. All of the Staff are helpful and very kind and polite.”
– Normal & Willard Johnson

“I have not have had a problem with any member of the staff. All our pets have been patients of Harmony since 1996. Good job.”
– Fauvette Nudleman

“Excellent service! Clean facility! I will not trust any other vet with my pup;)”
– Rhenna & Emilo Pages

“We find everyone at Harmony to be extremely helpful. Nice, caring people!”
– Robin Monserrat

“I am very happy with the level of care my "fury" children receive at Harmony. It keeps me coming back. Thank you!”
– Kristen Wagner

“I've seen all of the physicians with my 2 German Shepherds and rescue kitty and they're all amazing! Routine visits to emergency visits always leave us feeling cared for. We moved to the area from CT about 2 years ago and called the Jupiter PD to see who they used (since we have intact male shepherds, we felt most comfortable using a practice that cares for the K9 dogs!) and were referred to Harmony. Very happy with the level of care, responsiveness, low wait times, and follow up. Highly recommended!”
– Angela Valencis

“I'm very pleased with Harmony Animal Hospital. We have been going there for one year. They are prompt, thorough, and reasonable about my decisions for my dog. They make recommendations, but I don't feel pressured into a bunch of unnecessary treatments. It's a good balance of educating me about what needs to be done and yet letting me make the choice.”
– S Abitz

“This place is amazing hands down. They made me feel like I was the only client there and the place was packed. It's hard enough finding an exotics vet then trying to find one that knows what they are doing is even harder. To all the exotic owners in Jupiter, Dr. Johnston at Harmony AH is my new go-to!”
– Traci Willard

“Best veterinarians for your fur babies. They also have an exotic pet vet here named Dr Johnson and she's fantastic. We used her a few times for our 3-year old rabbit. All of our other pets have gone to see Dr. Cline. He is as good with animals as he is with people which is fantastic. The staff here are always kind, informed, patient, and take their time with each visit. You will never feel rushed and they make you feel like family. When our 11 year old Boston Terrier passed away last year they even sent us a card expressing their sadness for our loss. They also have a beautiful boarding facility for a few dogs and a separate facility for cats. Please do not hesitate to make this your new destination for your pet health needs.”
– Rachel Pignato