Our caring and compassionate veterinary care team!

Animal Medical Center is a full service companion animal hospital founded in 1989 by Dr. Cynthia Hartz. We understand the special role your pet plays in your family and are dedicated to becoming your partner in animal healthcare.  Our goal is to practice the highest quality medicine and surgery with compassion, placing an emphasis on client education and providing high-quality veterinary care throughout the life of your pet.

Our services and facilities are designed to assist in routine preventative care for young, healthy pets; early detection and treatment of disease as your pet ages; and complete medical and surgical care as necessary during his or her lifetime.

Please take a few moments to browse our website and learn more about AMC and the pet health-care resources provided.

Thank you for visiting and we look forward to meeting with you and you pet!

Cynthia Hartz, DVM

Founder and President of Animal Medical Center Inc. Dr. Hartz received her Doctor of Veterinary Medicine degree from the University of Illinois in 1984.  She worked in a private practice for 5 years before founding Animal Medical Center in 1989.  Dr. Hartz lives in Royersford with her husband Doug.  The Hartz family includes a Labrador Retriever named Turbo, a Dachshund named Minimum, a cat named Jack, a parrotlet named Mike and a parakeet named Scout. Outside of work, Dr. Hartz enjoys hiking with her dogs and swimming and reading. Dr. Hartz is a member of the American Animal Hospital Association (AAHA),  American Veterinary Medical Association (AVMA), Pennsylvania Veterinary Medical Association (PVMA), Association of Avian Veterinarians, American Association of Feline Practitioners (AAFP) and Delaware Valley Academy of Veterinary Medicine.  She is also a member at Valley Forge Baptist Temple.

Years in Practice: 34

Education: University of Illinois

Email: [email protected]

Sarah Rivera, VMD

Associate Veterinarian

Dr. Sarah Rivera graduated from the University of Pennsylvania School of Veterinary Medicine in 2022. She obtained her Bachelor’s of Science at Gettysburg College where she majored in biology and minored in chemistry. She is interested in surgery, dentistry, and preventative medicine. Dr. Rivera has a passion for the human animal bond and strives to work with clients to preserve, strengthen and nurture that bond.  In her free time, you can find her snuggling with her cat Roo, hiking, swimming, or practicing yoga. Dr. Rivera is a member of the AVMA and is fear-free certified.

Years in Practice: 1

Education: University of Pennsylvania School of Veterinary Medicine

Email:[email protected]

Ashley Klein, VMD

Associate Veterinarian

Dr. Klein grew up in Clinton, NJ with her two brothers and Jack Russell Terrier, Sasha.  After working at the Woodlands Wildlife Refuge in Pittstown, it became clear that she wanted to be a veterinarian.  She attended the University of Maryland, College Park with a major in Animal Sciences. Dr. Klein went on to obtain a degree in Veterinary Medicine from the University of Pennsylvania.

At home, Dr. Klein has a dog, Daisy, and three cats – Lindy, Hobbes, and Graycie. She enjoys traveling, hiking, skiing, and spending time with her family.

Dr. Klein is passionate about Internal Medicine and Dermatology. She strives to make sure owners can leave the hospital with a clear understanding of their pet’s health plan.  Dr. Klein is Fear Free certified and uses techniques from her training to make each visit less stressful for both owner and pet. By working together as a team, Dr. Klein looks forward to ensuring a longer and healthier life for your pet.

Education: University of Pennsylvania School of Veterinary Medicine

Email: [email protected]

Angelique Truitt, DVM

Associate Veterinarian

Dr. Angelique Truitt attended Ross University School of Veterinary Medicine, and completed her clinical year at the University of Illinois, then received her Doctor of Veterinary Medicine in 2018. She completed her undergraduate at Delaware Valley University, majoring in Biology and pre-veterinary animal sciences. Her areas of interest include ophthalmology, internal medicine and hospice/palliative care. Dr. Truitt has always been an advocate for agriculture and animals and enjoys farming. She currently lives on a historic 1800’s farm, where she raises a multitude of Jacob sheep, goats, miniature cattle, donkeys, horses and poultry.  Dr. Truitt loves riding and showing her horses as well as trail riding with friends. She can be seen hanging around her farm with her husband and menagerie of animals when not practicing veterinary medicine. At the end of the day, she is loved and greeted by her devoted Great Dane, Heeler, Dachshund and cats which are the apple of her eye.

Years in Practice: 5

Education: Ross University of Veterinary Medicine

Email:[email protected]

Melanie Wiener

Practice Manager

Melanie joined the AMC staff in September 2020.  She graduated from Bloomsburg University with a degree in Interpersonal Communications.  Prior to working at Animal Medical Center she was a Practice Manager for a well known national Veterinary practice.
Melanie grew up in the suburbs just outside of Philadelphia, where she currently lives with her husband Jake, her son Everett and deaf pittie, Bones.  She enjoys spending time with her family, going on  hikes and going out to eat!  She also enjoys sampling new kinds of wine and cooking new dinner recipes for her family.

In Practice Since: 2015

Education: Bloomsburg University

Email:  [email protected]


Veterinary Nurse
Sue joined Animal Medical Center in November of 1999 as an exam room assistant.  Sue has learned all aspects of outpatient and inpatient care and is a valuable resource to AMC. Sue’s animal family includes 4 dogs; Two Terriers from Puerto Rico named Potter and Weasley, a Terrier mix named Granger, and a German Shepherd mix named Logan.  Sue also has 2 cockatiels named Nell and Sophie, a parrotlet named Stuart and 5 rats named Brie, Gouda, Swiss, Ritz and Tray.  In her free time, Sue enjoys golfing, playing softball, swimming, going to the gym, listening to music, going to the movies, traveling and doing projects around the house.

Years in Practice: 24


Veterinary Nurse
Ken joined Animal Medical Center in August, 2012 as a Veterinary Assistant.  He attended Manor Junior College majoring in the Veterinary Technology program.  Prior to joining Animal Medical Center, Ken worked as a Pharmaceutical/Veterinary Technician for over 14 years at an animal hospital in Chester County. Ken lives with his wife, Trish and 2 sons.  His animal family includes 4 Boston Terriers, Rossie, Opal, Ruby and Izzy; a chihuahua, Ramsey.  In his spare time, Ken enjoys working on restoring his old farmhouse, working on classic cars, visiting the mountains and seashore, and spending time with his family and pets.

Years in Practice:10

Education: Manor College


Certified Veterinary Technician

Marissa joined AMC in November 2020. She received an Associate Degree in Veterinary Technology from YTI Career Institute. She recently passed her VTNE for her Veterinary Technician Certification. She shares her home with her dog Annabell, who is a Pitbull/Whippet/Boxer mix, as well as 3 kitties, Chailai (Siamese) – Soul (Ragdoll) – Callie (Calico). Not to forget her Brazillian Rainbow Boa named Scarlett!! When she is not working, Marissa likes creating art (painting, drawing, sculpting and making jewelry), yoga and nature walks.

Years in Practice:4

Education: YTI Career Institute


Veterinary Nurse

Tyra joined the AMC staff as a Veterinary Nurse in 2021.  She had recently worked as a tech assistant, as well as an associate at a Pet Health Store and bakery.  She shares her home with her dog Louie and her boyfriend Noah.  Some of her hobbies and interests include hiking with Louie.  


Veterinary Nurse

Colleen joined our team in the Summer of 2021 and has 19 years experience in the Veterinary field.  She shares her home with her husband and their cat and dog!  In her spare time, Colleen enjoying gardening, cooking & baking, watching the Phillies and walking her dog.  


Veterinary Nurse

Maddy joined Animal Medical center in February 2020 as a Client Care Specialist. She received an Associates Degree in Business Management from Lock Haven University.

In her spare time she likes photography, going camping, kayaking, fishing and being outdoors. She has had a love and passion for animals since she was a little girl. Maddy also loves spending time with her family, two legged and four legged!
Maddy is currently cross training within the hospital as a Vet Assistant, so you may see her in different places when you visit!


Veterinary Nurse

Emma joined our team in the Spring of 2022.  She earned her Associates Degree of Science from Harcum College.  In her spare time she enjoys hiking.  In the near future she hopes to begin volunteer work for a local shelter or wildlife sanctuary.


Veterinary Nurse



Veterinary Nurse

Lexi joined our team in early 2022 as a Technician Assistant.  Having taken classes at The Vet Tech Institute in Pittsburgh, she aims to be certified and possibly specialize in Dentistry or Exotics.  Lexi lives at home with her cat, Yinzer, who she got while she attended school in Pittsburgh.  Her hobbies and interests include reading, video games and ghost hunting.


Client Care Specialist


Client Care Specialist


Client Care Specialist


Client Care Specialist

Tracey joined the team at AMC in the fall of 2021.  He entered into the veterinary field because he adores animals and wants to be an active part in their support in this world.  In his spare time Tracey likes to hike with his family, which includes his husband Ron, and 2 dogs Gemma (Boston Terrier) and Baer (Shih Tzu).  He also enjoys traveling and restoring antique dolls.