Our caring and compassionate veterinary care team!

Meet the Veterinarians & Team of Mercerville Animal Hospital in Mercer County! We’re pleased to provide exceptional vet care for your pets!

Please call us at 609-587-5863 to speak to one of our caring veterinary staff members!

William Carter

Owner

William J Carter graduated from Ohio State in June 1977, and came home to his father’s practice that was opened in 1947. William and his wife Michele worked, lived and raised a family at Mercerville Animal Hospital before expanding the practice into the family home. William loves Mercerville Animal Hospital. He truly loves his profession – not sure if he loves it more than Disney. In his freetime – he is calling Mercerville Animal Hospital, wanting to work more He also loves taking walks, being involved in the Mercer County community , vacations with family and adores his kids and grandkids.

James Stewart

DVM

Colleen Stevens

DVM

Colleen started her career here at Mercerville Animal Hospital in November 1990, where she assisted with kennels. From there she worked her way up to receptionist, then later to technician and finally office manager. In July of 2006 Colleen departed Mercerville to pursue a degree in veterinary medicine at Oklahoma State University. Colleen graduated in 2012 from O.S.U with her Doctor of Veterinary Medicine and moved to Texas. Dr Stevens came back to Mercerville Animal Hospital in April 2015. In Colleen spare time she enjoys spending time with her family.

Nicole Platas

Manager

Nicole Platas joined our team in February 2015. She graduated from Towson University and has been in the veterinary field since 2011. Nicole has always had a passion for animals and knew from a very young age this was the career path for her. She loves to spend time with her family and friends and her fur-babies.

Stuart Little

Hospital Cat

Stuart Little has been with Mercerville Animal Hospital since June of 2018. You may occasionally see him strolling around the office begging for food. He enjoys napping and eating.

Baby Shark

Hospital Cat

Baby Shark is our newest addition. He has settled in very nicely here at MAH. He is notorious for sitting in the worst spots, such as: the top of the stairs, on top of charts, in the doctors' bins etc. We love this little guy, be sure to stop in and say Hi!

Sherry Valdora

Veterinary Nurse

My name is Sherry Valdora. I am a married mother of 3 children and 3 beautiful dogs. In 2001, I walked through the doors of MAH and was greeted by the welcoming smile of Mrs Michele Carter. I asked her if she was hiring Michele asked if I had any experience , I said “ no, I just really love animals”. She replied “ that’s the most important part." I was hired as a receptionist on the evening shirt and was thrilled to be there! Over the years, I have been fortunate enough to be trained under the direction of Dr. William Carter. With the guidance of Doc and Michele, I eventually started working as a Veterinary Technician. I love my job! Every day is a new adventure and I work with some of the best doctors and staff. I am thankful everyday to Doc and Michelle for the opportunity.

Karin Sienkiewicz

Karin Sienkiewicz

Veterinary Nurse

Karin Sienkiewicz,CVT, joined our team in April 2015, bringing with her many years of technician experience in the veterinary field. She received her degree through Camden County College. She spends her free time with her husband, Jeff, and two Doberman Pinchers, Rio and Anya. Her favorite pastime activities are gardening, hiking and outdoor adventures with her dogs.

Liz Thielke

Veterinary Nurse

Liz has loved animals her entire life (having been raised by a Siamese cat helped influence this worldview). She began working at Mercerville Animal Hospital in 2012; she is currently attending Camden County College in order to obtain her CVT. Liz loves all animals but especially adores cats; she currently shares her life with a beautiful long-haired tortie-tabby named Pumpkinhead.

Judy Petro

Veterinary Customer Care

Judy is always ready to greet you with a smile at the front desk. After working many years in the human medical field, she decided to follow her dream of working with animals. Judy has a passion for all animals and loves to get to know them as well as their owners. Her dedication and love for MAH lead to her promotion as lead receptionist. In her free time she enjoys outdoor activities, live music, spending time with her family, friends and two cats Chunk and Stinky.

Amanda Bencivengo

Veterinary Nurse

Amanda joined MAH almost 3 years ago as a receptionist. Shortly after starting, doctors and technicians saw her potential and promoted her to veterinary technician. Amanda has always had a loves for all kind of animals: dogs, cats, ferrets, hamster, birds and lizards. Every since she was a baby her dad has worked at the animal shelter and she has always been around animals and loved caring for them. She has a Shepherd mix fur baby, Sandy, who was rescued as a puppy. Amanda looks forward to continuing her education in this field and hopes to become a certified veterinary surgeon technician.

Rylie Ranallo

Veterinary Nurse

Rylie has been at MAH since August 2018. She is currently in school studying for her associates degree in Biology and veterinarian technician certification. Growing up, Rylie was always surrounded by animals of her own and volunteered at Howell Living History Farm. Her passion and love for animals is undeniable. During her free time, she enjoys camping and exploring all this world has to offer.

Hailey Simmons

Veterinary Customer Care

Hailey started at MAH in June of 2019. She is very eager to learn more about the veterinary field. She enjoys spending time with her family, friends and fur babies.