Jonathan Kaufman, DVM – Practice Owner

Dr. Jonathan Kaufman is a Baltimore native and has been the proud owner of Eastern Animal Hospital since 1990. Dr. Kaufman received his undergraduate education from both the University of Maryland and the University of Florida, then continued on to receive his Doctorate in Veterinary Medicine (DVM) from the University of Florida in 1987. His areas of concentration are in small animal medicine and surgery.

After graduation, Dr. Kaufman returned to Baltimore to practice small animal medicine. In 1990, he purchased Eastern Hospital and within a short time had increased the doctors and the staff, expanded the hours of operation and offered a wide variety of veterinary services. Now, after serving the community for over 30 years, Eastern Animal Hospital has received numerous awards for their excellence in veterinary medicine and the Hospital has been named, Baltimore’s Best Vets numerous times. After much hard work and dedication, Dr. Kaufman is proud to announce the opening of his newest, most state-of-the art veterinary facility, in which to care for his clients and their pets. The new Hospital boasts, more space, efficiency of flow for you and your pet’s comfort, Luxury Pet Hotel and Doggie Daycare. Dr. Kaufman performs many advanced techniques such as complex abdominal surgery, minimally invasive procedures, and laser surgery.

In 2010 Dr. Kaufman was appointed to the Mayor’s Anti-Animal Abuse Advisory Commission where he spoke before the Department of Justice’s animal cruelty session. He was a past President for the Pet ER, animal emergency hospital.

Dr. Kaufman continues to be a supporting member of the East Baltimore communities. For many years, he has provided Arden’s Arc free veterinary care for hundreds of feral cats that they rescue. In addition, Eastern Animal Hospital is a supporter of Canton Dog Park, Friends of Patterson Park, the Maryland Society for the Prevention of Cruelty to Animals, and the Baltimore Animal Rescue and Care Shelter (BARCS).

In his free time, Dr. Kaufman enjoys bike riding in beautiful northern Baltimore County, traveling to near and far places, cuddling with his dogs and family activities with his wife and two daughters.

Susan Warner-Jones, DVM

Susan Warner-Jones, DVM

Dr. Warner-Jones received her Doctorate of Veterinary Medicine from Ohio State University, where she received extensive training in companion animal and equine medicine. Dr. Warner-Jones served on the equine trauma team at the 1997 Kentucky Derby. She joined Eastern Animal Hospital in 1999.

Dr. Warner-Jones exemplifies the Eastern Animal Hospital approach of ‘treating the whole patient’ in complex medical cases. She routinely helps pets with a wide variety of surgical and internal medicine problems including:

  • Lameness
  • Urinary Tract problems
  • Tumors
  • Gastro-Intestinal problems
  • Diabetes
  • Skin Problems

Besides performing surgery and practicing internal medicine, Dr. Warner-Jones offers counseling to clients on selecting an appropriate pet, pet behavior issues, and helping pets successfully lose weight. In addition to treating cats and dogs Dr. Warner-Jones treats other small mammals such as rabbits, rodents, and guinea pigs.

Dr. Warner-Jones’ interests include knitting and gardening, as well as spending quality time with her husband, three children, her dog Hoshi and Maine Coon cat.

Lawrence Eden, BVSc

Dr. Lawrence Eden received his Bachelor of science (Hons) degree in Applied Zoology from Liverpool John Moores University, UK in 2001, and then attended veterinary school at The University Of Pretoria, South Africa. After graduating with his Bachelor of Veterinary Science in 2008, he spent five years practicing in Gaborone, Botswana in a mixed animal practice that focused primarily on companion animals but also included wildlife and exotics.  Dr. Eden moved to the US and since attaining his AVMA ECFVG certificate in 2015, has worked in a high-volume preventative care facility in Washington DC for a year before moving to Baltimore. 

Dr. Eden’s interests in veterinary medicine include soft tissue surgery, preventative care and internal medicine. Dr. Eden resides in the city of Baltimore with his wife Chrissy and three African dogs Molly, Milo and Tayla. In his free time he enjoys playing tennis, hiking, exploring his adopted country, and camping.


Kari Deininger, DVM

Dr. Kari Deininger received her undergraduate degree in Molecular Biology from Kenyon College and her veterinary degree from the University of Missouri. Following graduation, she completed an internship in small animal medicine and surgery at the Texas A&M University Veterinary Medical Teaching Hospital. Her areas of interest include oncology, emergency medicine, critical care, and internal medicine.

Dr. Deininger lives in the Baltimore area with her sister, her Rough Collie named Remy, her green cheek conure named Yoshi, and three cats named Kinase, Purkinje, and Snip. In her free time Dr. Deininger enjoys spending time with her family, folding origami, hiking, and solving puzzles.

Marieta Solé, DVM

Dr. Solé was born in Argentina but has moved around for much of her life, living in Brazil, New Jersey, Georgia, North Carolina, New York, Scotland and England. She completed her undergraduate studies at Davidson College in North Carolina, receiving a Bachelor of Science in Biology with a concentration in International Studies. Dr. Solé worked at John’s Hopkins University and Columbia University, specializing in cancer research, before attending the University of Glasgow in Scotland where she obtained her veterinary degree. She also completed an Masters in Biodiversity and Conservation while there. Dr. Solé worked in a small animal hospital in Leeds, England and then in a small animal general practice/emergency hospital in Katy, Texas. Dr. Solé is happy to once again be able to call Baltimore home!

In her free time, Dr. Solé enjoys spending time with her family, playing and watching soccer, supporting her husband’s basketball teams, and traveling. She has the most lovable English Setter, Westley, and is looking to expand the fur family soon (with her husband’s permission!)

Taylor DeWitt, DVM

Dr. Taylor DeWitt spent most of her childhood in Dallas, Texas in a house full of dogs. She attended Purdue University in Indiana for undergraduate studies and for veterinary school. She focused on small animal medicine during veterinary school and developed special interests in clinical pathology, dermatology and internal medicine.

Dr. DeWitt met her now husband during her undergraduate studies at Purdue. They share their lives with a mutt named Harvey Dent and a retired laboratory rat named Zaphod Beeblebrox. Dr. DeWitt enjoys hiking, backpacking, playing board games and reading science fiction.”

Courtney Haviland, DVM

Dr. Courtney Haviland is a native of Annapolis, Maryland. She attended the University of Georgia (Go Dawgs!) for her undergraduate studies. She attended Lincoln Memorial University’s College of Veterinary Medicine and was awarded her doctor of veterinary medicine. Previously, Dr. Haviland worked as a veterinary technician at Greater Annapolis Veterinary Hospital. She also volunteered at the National Aquarium and Maryland Zoo in Baltimore.

Dr. Haviland has a passion for research and worked as a research assistant throughout college and veterinary school. At home, she loves watching Netflix with her two English Bulldogs (Wookie & Sanford), and a Pug (Roxy). She also enjoys watching football with her family. Dr. Haviland likes to quote The Office, seeing live music, cooking, Harry Potter and Beyonce!

Shannon Montessi, DVM

Dr. Montessi was born and raised in Texas (Arlington and the Dallas- Ft. Worth area). Shortly after high school she joined the U.S. Coast Guard and honorably served our country for 10 years. She was stationed on ships that deployed for two months at a time conducting federal maritime law enforcement, drug interdiction and migrant repatriation. Dr. Montessi was also stationed on the coasts of Virginia and North Carolina running search and rescue missions as well as law enforcement duties. While still on active duty, Dr. Montessi began undergraduate classes, eventually transitioning to full-time studies upon separation from military service.

Dr. Montessi attended Christopher Newport University in Virginia and the University of South Florida. She earned her BS degree in biology from the University of South Florida. Dr. Montessi worked as a veterinary technician for four years before attending veterinary school where she earned her Doctor of Veterinary Medicine from the University of Florida.

Dr. Montessi’s husband is a Chief Warrant Officer in the U.S. Coast Guard and has been honorably serving for 20 years. Their family includes, a daughter and son, two dogs and two cats. Dr. Montessi loves spending time with her family, building and shooting firearms as well as discovering and listening to music.

Her special interests include emergency and critical care, soft tissue surgery and feline medicine.

Justin Scally, Hospital Director

Justin L. Scally, a nationally recognized leader in animal welfare and protection, joined Eastern Animal Hospital in 2015. Prior to coming to EAH, Justin worked as a highly accomplished local government department head and as a highly respected leader with national non-profit organizations. Justin has been a director of animal services agencies in both North Carolina and Kentucky and has also worked for The Humane Society of the United States and American Humane Association. Justin was an animal control officer in Maryland and got his start in animal welfare by working as a veterinary technician.

Justin has devoted his life’s work to animal protection and has a wealth of training and experience. Among his many accomplishments and recognitions, Justin has obtained specialized training in crime scene investigations as well as technical animal rescue and emergency management. Justin has also served in various roles within public safety.

Justin has traveled the nation working to save animals in numerous high-profile cruelty cases, has worked to bring animal abusers to justice, and has rescued animals from natural disasters of historic proportions. Justin has presented at seminars and conferences nationwide and has also testified and lobbied in support of stronger animal protection legislation.

Justin’s special interests within veterinary medicine include emergency medicine, critical care and surgery.

Kristy Twining, Hospital Manager

Kristy Twining, Resource Coordinator

Kristy joined Eastern Animal Hospital in February of 2000. In this time, she has worked in nearly every department at EAH. Kristy is now our Resource Coordinator. She thoroughly enjoys working behind the scenes, to make sure we have everything we need to offer the best veterinary medicine to our patients.
Kristy lives with her husband and their son Isaac. She enjoys spending time with them, and with their rescued labradoodle, Pickle. In her spare time, she enjoys traveling, seeing live bands, and shopping.
Shannon Amtmann

Shannon Amtmann, Kennel and Doggie Daycare Manager

Shannon Amtmann began working at Eastern Animal Hospital in March 2010 as a kennel technician. Her job consisted of, but was not limited to: caring for boarders, admitting/discharging pets, feeding, and walking all pets in our boarding facility. In less than a year she moved up to the night shift comfort care position. This title entailed recovering patients from surgery, assisting technicians with treatments, restraining pets for exams or procedures, and admitting/discharging our hospitalized patients. In May of 2012 she was offered the position of Kennel Manager. This title entails managing budget, scheduling, training new kennel technicians, keeping the boarding facility running smoothly and cleanly, and all the duties of a kennel technician.

In her free time she loves riding her bike, spending time with her wife, watching SpongeBob cartoons, and spending lots of time with her three cats. Shannon’s cats are everything to her. Her tabby, Spencer is one of a kind. Lyric, a lynx point Siamese, is as special as they come. Last but not least, Harper (Little Devil) is quite the handful.
Eastern Animal Hospital is Shannon’s second home, and has been even before she was employed here. Shannon states, “I feel an extreme sense of pride saying that I am part of such an amazing animal hospital. We care and it definitely shows!”


Erin James, Human Resource Manager

Erin James is a Human Resources and Learning professional who grew up in Baltimore. In 2014, she graduated from the University of Baltimore with a BS in Human Resource Management. For most of her career she has worked in the Hospitality industry, and has also spent some time in the IT Industry.

In 2017, she was a part of the opening of the luxury-boutique hotel, Sagamore Pendry Baltimore – which was named #1 Hotel in the U.S. by Condé Nast in 2018. There she spent 3+ years serving as the People and Learning Manager and helped grow the culture by leading and implementing trainings, wellness initiatives, and community outreach programs. She also had the opportunity to serve on the task force team for Montage International, where she spent some time at the Pendry San Diego assisting with training’s and other Human Resource functions. Prior to that she served as the Human Resources Manager at a Radisson brand hotel. Erin is very passionate about her role and strives to get others excited about what they do!

Erin has a love for travel and exploring new places. At home she has two very energetic kitties named Arlo and Ruby. In her spare time, she likes watching reality TV and doing anything creative!

Heather Sartwell, Client Experience Manager

Heather has been in the veterinary field for ten years and has worked in a variety of technical roles in both general and specialty veterinary medicine. From 2012 – 2019 she held supervisory roles within the veterinary technician departments at Arnold Veterinary Hospital, Atlantic Veterinary Internal Medicine & Oncology and at BARCS. Most recently she pursued her passion for veterinary radiology by working as a traveling veterinary radiology educator and field support specialist, with Idexx Laboratories.

Heather resides in Severn with her plott hound, Carrie, and chinchilla, Cinna. In her free time, Heather enjoys kayaking, hiking, fishing, traveling, and creating digital art.

Liz Devine, Executive Assistant

Liz graduated from UMBC with a BFA in Acting. She has experience in the Restaurant and Hospitality industry, working at five-star hotels and high-end restaurants. She is excited about learning and growing in her new role.

Liz resides in Laurel with her two twin orange tabby cats, Sweet Potato and Tater Tot. In her free time, Liz enjoys performing and seeing theatre, traveling, trying new restaurants, and spending time with her friends and family.