Dr. George L. Hartenstein IV
Dr. George L. Hartenstein IV is the son of the late Hill Street Veterinary Hospital founder Dr. George L. Hartenstein, III. Dr. Hartenstein is primarily a large animal clinician. He has been traveling around York County attending to the needs of our local farmers since his graduation from the University of Pennsylvania in 1968. In addition to his medical and surgical obligations to our large animal friends, Dr. Hartenstein sees companion animals at the office on Hill Street 3 days-a-week.
Outside his life-long dedication to animals, Dr. Hartenstein enjoys Formula 1 racing and traveling. Once-a-year, he travels out west to participate in the Native American Veterinary Services (NAVS) program sponsored by the University of Pennsylvania. Through NAVS, volunteers provide veterinary services to the farm and companion animals of Native Americans who would otherwise have access to little or no veterinary care.
Dr. Sara Alfano
Dr. Alfano grew up outside of Scranton, Pennsylvania. She obtained her undergraduate degree from Bucknell University, and she then went on to earn her veterinary degree from the University of Pennsylvania. Immediately following veterinary school, Dr. Alfano went on to complete an Equine Field Service internship at the University of Tennessee. From there she came to Hill Street in June of 2015. In January of 2018, Dr. Alfano became a Partner.
Dr. Alfano has a passion for equine, small ruminant and companion animal medicine. Her special interests include small and large animal internal medicine, ophthalmology, dentistry and preventative care. In her spare time, she loves to run, swim, cook and take Rainey, her rescue puppy, for long walks.
Partner since January 2018
Dr. Lauren Feroli
Dr. Feroli grew up locally in York. She obtained her undergraduate degree in Animal Science at the Pennsylvania State University. She and her family then made the trek to Massachusetts where she earned her veterinary degree from the Cummings School of Veterinary Medicine at Tufts University. Dr. Feroli joined Hill Street in June of 2016. In January of 2019 she became a Partner.
Dr. Feroli couldn't be more pleased to be back in York. She loves canine and feline general practice and has a special interest in avian and exotic companion mammal medicine. Her hobbies include tending to her cockatiel flock and caring for her children.
Partner since January 2019
Dr. Faith Roser
Dr. Roser was born and raised in York county. She received her undergraduate degree from Drexel University, and completed her veterinary training at the University of Pennsylvania. Dr. Roser began working at Hill Street Veterinary Hospital as a college student in 2012. She joined the practice as an associate veterinarian in June of 2020.
Dr. Roser is excited to return to caring for the companion and farm animals of York County. She has a special interest in preventative care of small ruminants. In her free time, she enjoys reading and writing, cooking, tending to her orchids and vegetable gardens, horseback riding, and playing with her sheep and cats.
Managing Partner since July 2017
Louisa was born in York and raised on a horse farm in the southern part of the county. Daughter of partner Dr. George Hartenstein IV, Louisa has benefited from the influence of three generations of local veterinarians. Louisa obtained her undergraduate degree in Biology from the University of Delaware, and from there she spent 5 years managing a laboratory in a pre-pharmaceutical research facility. After 10 years of living in Delaware and Colorado, Louisa returned to York County to raise a family. In 2002, she joined Hill Street as the office manager. In 2017, Louisa became the Managing Partner. In her free time, Louisa enjoys photography, DIY home projects, singing with the York Symphony Chorus and spending time with her two young adult children.