Chalfont, PA Veterinarians
Tracy A. Heitzman, VMD, Owner
Veterinarian and Practice Owner Dr. Tracy Heitzman hails from Ewing, New Jersey. From an early age, Dr. Heitzman knew that she wanted to care for animals. During high school, Dr. Heitzman worked at a local animal hospital where the veterinarians provided her with her first lessons in veterinary medicine.
After high school, Dr. Heitzman attended Mercer County Community College where she earned an Associate degree in Applied Science in Medical Technology in 1988. She went on to The College of New Jersey, earning her Bachelor of Science in Biology in 1990. While at The College of New Jersey, Dr. Heitzman won the dean's award, an award from the National Honor Society, and was recognized as the Medical Technologist of the Year.
Dr. Heitzman attended University of Pennsylvania School of Veterinary Medicine, where she earned her Veterinariae Medicinae Doctoris in 1999. While at veterinary school, she earned the American Animal Hospital Small Animal Medicine and Surgery Award. Dr. Heitzman opened County Line Veterinary Hospital in 2006 and after 10 years of providing outstanding veterinary care in Hatboro, Dr. Heitzman opened Central Veterinary Center in 2016.
"The most satisfying part of being a veterinarian is being able to send an animal home to their family when it seemed initially like a poor prognosis," Dr. Heitzman says. "It's also deeply satisfying when I develop relationships with pets and their families."
Dr. Heitzman is a member of the American Veterinary Medical Association, the Pennsylvania Veterinary Medical Association, The New Jersey Veterinary Medical Association and the Metropolitan Veterinary Medical Association. She is professionally interested in internal medicine and surgery.
At home, Dr. Heitzman has a 9-year-old Jack Russel terrier/Chihuahua mix named Roxy, a 6-year-old long hair Chihuahua named Zoe, a 3-year-old long hair Chihuahua named Rupert, an 11-year-old domestic shorthair cat named Spike and an 8-year-old domestic shorthair cat named Chuckie who lives at County Line Veterinary Hospital. She shares her home with her husband, James, who is a New Jersey State Trooper. Dr. Heitzman admits to being a diehard Cowboys fan, and in her free time she enjoys watching movies and home decorating.
Aubrey E. Howland, DVM, Associate Veterinarian
Dr. Aubrey E. Howland is responsible for the evaluation of patients, diagnosing health issues, and providing treatment plans. Her professional interests include surgeries and ophthalmology. Dr. Howland earned her Bachelor of Science in Biology from the University of Mary Washington and she went on to attend veterinary school at Iowa State University College of Veterinary Medicine. As a new grad, Dr. Howland is full of fresh information and new ideas for improving the lives of animals. She joined our team full-time on June 8, 2021. Dr. Howlan is also a member of the American Veterinary Medical Association.
Before coming to work at Central Veterinary Center, Dr. Howland previously worked as a Veterinary Tech Assistant from 2015-2017 and as an Adoptions Coordinator. Dr. Howland has several pets of her very own including 1.5 year old dog Eden, 6 year old cat Charlie, 5 year old cat Kellan, and 4 year old Bearded Dragon named Queso. As a new member of the team, Dr. Howland says that she loves the atmosphere of our office and looks forward to working with our excellent team. In her free time, Dr. Howland enjoys traveling, hiking, crocheting, and playing basketball.
Maya Kofsky, DVM, Associate Veterinarian
Dr. Maya Kofsky joined the team at County Line Veterinary Hospital and Central Veterinary Center in July 2025. As an Associate Veterinarian, she brings a strong interest in internal medicine, dermatology, and ophthalmology to her daily practice. She is especially passionate about client communication and education—believing that by empowering pet owners with knowledge, she can better advocate for the highest standard of care throughout each pet’s life.
Dr. Kofsky earned her Bachelor’s degree in Pre-Veterinary Medicine and Animal Biosciences from the University of Delaware in 2021. She went on to receive her Doctor of Veterinary Medicine from Iowa State University's College of Veterinary Medicine in 2025. She is a proud member of the American Medical Association (AMA).
Originally from Hatboro, Pennsylvania, Dr. Kofsky's journey into veterinary medicine began at a young age. At just 13 years old, she started walking a neighbor’s Boxer and quickly realized how much animals depend on compassionate care. By 14, she was working at a pet grooming facility, followed by a position as a Kennel Assistant at a veterinary hospital. Over the years, she progressed to receptionist and then Veterinary Assistant—all while fostering pets for a local rescue. Her dedication continued through college, where she remained a Veterinary Assistant and participated in training future service dogs through the Canine Companions for Independence program. She also interned at the University of Pennsylvania’s Working Dog Center, where she helped train future search and rescue and police dogs.
Dr. Kofsky shares her home with three beloved dogs: Squid, a 4-year-old Pitbull mix; Jazz, a 7-year-old Akita mix; and Kona, a 12-year-old Hound mix. When she’s not caring for patients, she enjoys outdoor activities like hiking and skiing, as well as walking her dogs. She also loves traveling, reading, kickboxing, watching reality TV, and spending quality time with her family and friends.
Dr. Kofsky is thrilled to be a part of both County Line Veterinary Hospital and Central Veterinary Center, where she is dedicated to supporting families and their pets through every stage of life.
Jenna Stefkovic, VMD, Associate Veterinarian
Dr. Jenna Stefkovic is an Associate Veterinarian of General Practice and Urgent Care from Horsham, PA who joined our team in October 2025. From an early age, she has maintained a profound connection with animals as she's raised and cared for a variety of species, since she grew up on a hobby farm with horses, goats, chicken, rabbits, and more. She has always been intrigued by the differences in anatomy and husbandry across species, as well as the powerful role that veterinary medicine plays in support animals' health and enhancing their well-being.
For college, Dr. Stefkovic attended the University of Delaware and graduated Magna Cum Laude in 2019 with a Bachelor of Science in Pre-Veterinary Medicine & Animal Biosciences with a Minor in Biology. She then attended the University of Pennsylvania School of Veterinary Medicine and graduated in 2023.
"For me, the most satisfying part of being a veterinarian lies in those quiet wins - the senior dog who finals wags his tail after days of feeling crummy, the skeptical cat who grudgingly accepts that I'm not the enemy, or the dog who showers me with slobbery kisses as if to say 'thank you, I'm not in pain anymore.' There's something deeply fulfilling about being the person both animals and their people can rely on during uncertain times," Dr. Stefkovic warmly says. "I've shared plenty of laughs - and the occasional scratch or escape attempt - with clients, embracing all the chaos and joy that comes with loving and caring for pets. At the end of the day, our pets are family, and helping them feel better while supporting the people who love them is what makes this work truly rewarding."
Dr. Stefkovic is part of the American Veterinary Member Association, as well as the Veterinary Business Medical Association. Some of her professional interests include Dermatology, Internal Medicine, and Emergency Medicine. She has done volunteer work at AARK Wildlife Rehabilitation Center, Loop Abroad Veterinary Service Trip, and provided veterinary assistance at Forgotten Cats.
At home, Dr. Stefkovic and her husband John love to spend time with Violet, their 6-year-old German Shepard; Migo, their 7-year-old male domestic shorthair cat; and Millie, their 9-year-old female domestic shorthair cat. In her free time, Dr. Stefkovic enjoys playing tennis, gardening, and cooking.
Lorelei Wakefield, VMD, Associate Veterinarian
Dr. Wakefield holds a VMD from the University of Pennsylvania School of Veterinary Medicine. She completed a rotating internship in small animal medicine and surgery at the Bergh Memorial Animal Hospital of the American Society for the Prevention of Cruelty to Animals in New York City. She earned a bachelor’s degree in Psychology from Rutgers University, where she graduated through the honors program and with a minor in Biology. Dr. Wakefield founded the University of Pennsylvania Veterinary Animal Welfare Society, a group that organizes educational sessions for veterinary students. She splits her time between Idaho and Pennsylvania, has a sweet cat named Leilani, and spends time outdoors hiking, mountain biking and cross country skiing.
Melissa Hobday, VMD, DACVS, Board-Certified Veterinary Surgeon
As a veterinary surgeon, Dr. Hobday has particular interest and expertise in gastrointestinal, orthopedics and upper airway procedures. She graduated from the University of Pennsylvania School of Veterinary Medicine in 1999, then practiced for nearly a decade in emergency medicine before completing her surgery residency at Veterinary Specialty and Emergency Center and becoming a Diplomate of the American College of Veterinary Surgery.
She has dedicated her career to providing exceptional care, staying up-to-date with new procedures and best practices in her field of specialization. As a caring and skilled professional, Dr. Hobday is known for thorough case management and working closely with her clients to provide individualized follow-up care.
Dr. Hobday finds beauty in both fine art and in animals. She has a BFA from the Maryland Institute College of Art and studied sculpture in Italy before pursuing her dream of helping animals. She has a cat named Taters and a Boykin Spaniel named Hug.
Johanna Frank, DVM, DVSc
Dr. Frank is originally from Montreal, Quebec, Canada. She graduated with high honors from the Ontario Veterinary College, University of Guelph in 1994. She completed a rotating internship in small animal medicine and surgery from North Carolina State University in 1995 and then returned to the Ontario Veterinary College for a residency in small animal internal medicine, which she completed along with a doctorate degree of Veterinary Science (DVSc) in 1998. Dr. Frank achieved board certification by the American College of Veterinary Internal Medicine (ACVIM-small animal) in 1998. Dr. Frank is now a Certified Fear Free Professional.
Dr. Frank worked at a specialty referral practice, in Littleton, Colorado as an internist until 2002. She then provided telemedicine consultations for Sound Technologies, which allotted her a sound basis for communication with general practitioners with regards to case interpretation and direction for diagnostics and treatment. Concurrently, she ran her own small consulting business in Fort Collins, Co providing in-clinic internal medicine consultations and endoscopy.
Dr. Frank worked for New Jersey Mobile Associates as a medicine consultant and mobile sonographer from 2006-2013. With a significant caseload and large variety of cases and clinics, Dr. Frank had become extremely proficient as well as efficient at sonographic examinations and consultation with general practitioners. In 2014, Dr. Frank established VetSound IM LLC and has continued to provide thorough sonographic and medical consultations. She continues to ultrasound over 2500 cases per year and has developed long-standing, trusted relationships with numerous veterinarians. This combination of deep and varied case and relationship-building experience is the foundation of her practice.
Dr. Frank co-authored The Curbside Guide to the Diagnosis and Treatment of Common Sonographically-Detected Disease: Canine and Feline, which was published in 2015.
Johanna and her husband, Sean Troth, a veterinary pathologist, are practicing empty nesting, as their young adult kids are in college, graduate school and working. Their four-legged kids keep them busy (three Cavaliers, one cat and two horses). In her “spare time,” Dr. Frank really enjoys riding and competing in dressage, as well as photography, hiking and reading for her book club.
Ty Johnson, BVMS, Associate Veterinarian
Central Veterinary Center is proud to introduce Dr. Ty Johnson, BVMS, who joined our team as an Associate Veterinarian in September 2025. Dr. Johnson brings a strong foundation in urgent care and emergency medicine, with special interests in pain management and compassionate, team-focused patient care.
Originally from the Midwest, Dr. Johnson discovered an early fascination with medicine—collecting anatomy books and volunteering at a local hospital as a child. It wasn’t until leaving for college and being away from his childhood dogs that he realized the meaningful impact he could make by caring for animals and the people who love them. While earning his Bachelor of Arts in Biology from Grinnell College in 2015, he began volunteering at a small animal clinic as a kennel attendant. There, he found his veterinary community and a clear calling in life.
Before attending veterinary school, Dr. Johnson worked as a veterinary assistant at a small animal primary care clinic near Seattle, Washington. He credits this experience—and the mentorship he received—for shaping the veterinarian he is today. He went on to earn his veterinary degree from the University of Glasgow School of Veterinary Medicine in 2021 and is an active member of several professional organizations, including the American Veterinary Medical Association, Veterinary Emergency and Critical Care Society, Royal College of Veterinary Surgeons, and he holds Fear-Free and RECOVER (CPR) certifications.
For Dr. Johnson, the most fulfilling part of veterinary medicine is the deep connections he forms—with patients, their families, and the colleagues who share the work beside him. He feels especially honored to support families through difficult moments, whether during emergencies, unexpected illnesses, or end-of-life transitions. Helping a nervous or hurting patient learn to trust him—then watching them improve, even in small ways—is one of his greatest rewards.
At home, Dr. Johnson enjoys life with his senior rescue dog, Tchotchke, a fluffy, big-eared companion with a gentle soul. He also carries the memory of his beloved senior dog, Charlie, who remains close to his heart. Outside of work, he’s often found reading science fiction, fantasy, and nature or travel nonfiction, camping in the summer, or visiting family back in the Midwest.
We are thrilled to have Dr. Johnson as part of the Central Veterinary Center family and know our clients and patients will quickly appreciate his skill, dedication, and genuine compassion.
