The Doctors


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James P. Doman, VMD

Hi, I am Dr. James Doman. I am a Lancaster County native; I grew up in Lancaster City and graduated from Millersville University and the University of Pennsylvania School of Veterinary Medicine.

I joined the NVC team in 1976. My special interests include dentistry, cancer treatment, allergy treatment and “pocket” pets like rabbits, ferrets and guinea pigs.

My wife, Dawn, and I have 2 married children and 2 grandchildren; 1 miniature Dachshund – “Daphne”, and a Ragdoll-Himalayan mix – “Quincy.” To keep healthy and in shape, I swim laps at the YMCA.

In my spare time I enjoy spending time in our yard and garden, volunteering for our church, and entertaining our grandchildren.


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Nicole L. Blithe, DVM

I’m Dr. Nicole Blithe. I attended Virginia Polytechnic Institute and State University (Virginia Tech) for my undergraduate studies.

I earned a bachelor of science in Animal and Poultry Science with an emphasis in Biotechnology.

After graduation, I worked at the National Heart, Lung and Blood Institute at the National Institutes of Health in Bethesda, MD as an intern for two years in a surgical lab.

I graduated from Virginia-Maryland Regional College of Veterinary Medicine at Virginia Tech and joined the Neffsville Veterinary Clinic Team in 2004.

My special interests include internal medicine, geriatric feline medicine, international travel, and ultrasound.

My husband, Scott, two children, Aiden & Avery, and I live in the southern end of the county with our cat Doc.

In my spare time, I enjoy boating, biking, riding our motorcycle, cooking, working on my house, shopping and watching Virginia Tech football. Go Hokies!!


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Amanda J. Rouen, VMD

Hi, I’m Dr. Amanda Rouen and I joined the Neffsville Veterinary Clinic in 2007. I attended Pennsylvania State University where I studied in the Schreyer Honors College, and graduated with honors in Animal Bioscience.

I received my degree in veterinary medicine from The University of Pennsylvania in 2002. After practicing small animal medicine in Reading, PA for 5 years, I joined the Neffsville Veterinary Clinic in 2007.

I enjoy small animal medicine and surgery with a passion for feline medicine, dermatology, dentistry and senior wellness.

I have over 15 years of experience using a CO2 laser for surgical procedures. I attend annual meetings to stay current on medical, dental and surgical topics.
Outside of work I enjoy being with my family, cooking, reading and taking spin classes.

I live in Lancaster with my husband Seth and my children Evan and Ava. We have two orange cats named Pippa and Maybe, and a Cavalier King Charles Spaniel named Gatsby.


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Andrew C. Sloyer, DVM

Hello, I am Dr. Andrew Sloyer. After graduating from Franklin and Marchall College and the University of Tennessee College of Veterinary Medicine, I practiced in Gilbertsville, PA. I started at Neffsville Veterinary Clinic in May 2000.

I see patients on a daily basis and have special interests in orthopedic surgery and knee surgery.

I lead our team in orthopedic surgery. We do the tibial tuberosity advancement technique (TTA) for dogs with anterior cruciate ligament disease, especially dogs over 60 pounds.

We are seeing excellent results with dogs returning to normal function more quickly.

We continue to perform the lateral suture technique for small and medium dogs for repair of ruptured anterior cruciate ligament and also medial patellar luxation repair.

I love seeing animals being able to return back to the activities they love after successful knee surgery.

When I am not helping our patients, my wife Kristina and our two sons, Clark and William enjoy spending time on our family farm.

We have two terriers (Isabelle and Winston), two cats (Franklin and Marvin), a small flock of chickens and a school of fish.


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Klint D. Hockenberry, DVM

Hi! My name is Dr. Klint Hockenberry. I joined Neffsville Veterinary Clinic in 2010.

I enjoy all aspects of veterinary medicine and surgery, with special interest in theriogenology (reproduction) and surgery (orthopedics and soft tissue). I was chosen from my graduating class to receive the “Excellence in Theriogenology” award. I offer ovulation timing, artificial insemination, semen evaluation, pregnancy diagnosis, cesarean section and neonatal care. Advanced surgeries are a major passion of mine; including ACL repair, anal sacculectomy, upper airway, and other advanced soft tissue surgeries.

I love the challenge and variety provided by being a veterinarian, as well as meeting members of the local community. I feel privileged to be able to develop lifelong relationships with pets and their people.

My outside interests include being a dad. When I’m not busy with that I enjoy exercise, fishing, jigsaw puzzles and word jumbles.

I live in Mount Joy with my wife and two sons, Grant and Gabriel. We have a crazy German Shorthair Pointer, and Dreya.


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Joanna Parr, VMD

Hi! I’m Dr. Jo Parr. I joined the Neffsville Veterinary Clinic in 2016. I was born in England and immigrated to the United States in 1990, growing up mostly in the greater Philadelphia area.

My early interest in veterinary medicine led me to pursue an undergraduate degree from Penn State University and subsequently a veterinary degree from the University Of Pennsylvania School Of Veterinary Medicine.

After graduation, I practiced both emergency and primary care medicine in the York and Elizabethtown areas.

While loving all aspects of veterinary medicine, my special interests include emergency medicine, surgery, geriatric medicine and caring for our working dogs.

My husband (a fellow Penn Stater) and I reside in the Manheim with our two energetic, rescue dogs Karma and Ella along with Jewels our cat and 5 chickens.

We both enjoy playing soccer, snowboarding, scuba diving, gardening and taking our dogs hiking.


Maria E. Hillenbrand, DVM, MS

Hi, I’m Dr. Hillenbrand, and I joined the Neffsville Veterinary Clinic in 2018. I was born in Delaware but spent the majority of my childhood growing up in Texas and Virginia, before completing my high school career in Chester County, PA. I earned a Bachelor’s degree in General Biology with a concentration in Entrepreneurial Studies from Washington & Jefferson College. Two years later, I completed a Master’s degree in Infectious Diseases and Microbiology from the University of Pittsburgh. After working in research for a couple of years and producing multiple publications, I attended veterinary school at the University of Illinois and earned my doctoral degree. Following graduation, I practiced at a small animal hospital in York, PA.

I love general practice and have an avid interest in cardiology, oncology, and ophthalmology, as well as forming lasting relationships with clients and their pets. I enjoy attending veterinary conferences and hold memberships with the American Veterinary Medical Association and the Pennsylvania Veterinary Medical Association.

In my free time, I enjoy hiking, playing basketball, watching sporting events, traveling, spending time with family and friends and sharing my household with my rescue dog, Samson.


Jessica Grove, DVM

Hi, I am Dr. Jessica Grove. I grew up in Windsor PA and began pursuing my dream of becoming a veterinarian at Millersville University, where I was awarded my Bachelor of Science. I continued my education and earned my DVM at Lincoln Memorial University – College of Veterinary Medicine.

I have a passion for all furry creatures, small and large, and am blessed to be in a career where I have the opportunity to work with all animals and build relationships with owners as well.
My special interests include surgery, alternative medicine, rehabilitation, and theriogenology.

My fiancé, Cody, and I live in York County with our two dogs, Miley and Sophie.

I enjoy spending time with my family, finding new ideas on Pinterest, riding four-wheelers, gardening, and going horseback riding.


Christina J. Walsh, DVM

Hello! My name is Dr. Cristina Walsh. I joined the Neffsville Veterinary Clinic in 2020.

I was born and raised in Nova Scotia, Canada. I completed my undergraduate studies at Cape Breton University in 2011 with a concentration in biology.

I quickly joined the workforce in a chemical analysis laboratory for natural gas. While challenging, I’ve known since I was a little girl that I wanted to be a veterinarian.

I went back to school at the Atlantic Veterinary College in Prince Edward Island, Canada where I graduated in 2017 as a Doctor of Veterinary Medicine.

Following graduation, I relocated to Lancaster, PA where I started my career as a general practitioner.

I feel extremely privileged to join the team at Neffsville and build lasting relationships with clients and their pets.

I have a passion for preventive medicine as well as a keen interest to work with exotic animals. My husband and I share our home in Lancaster with our dogs, cat, birds and a few reptiles. In our spare time we enjoy camping, riding motorcycles and traveling.