Robert Justin, DVM, DACVIM

Dr. Justin.Dr. Justin is a graduate of the College of Veterinary Medicine at Cornell University. He completed both an internship and a residency in small animal internal medicine at The Animal Medical Center in New York City and became board certified in internal medicine in 1996.

He has received the distinction of being named in New York Magazine as “one of the top veterinary specialists in the NY metropolitan area.” He has a special interest in ultrasound, endoscopy, endocrinology, gastrointestinal and metabolic disease. In his free time he enjoys gardening with native plants and cooking.

Sybille Miller, DVM, DACVIM

Dr. Miller.Dr. Miller found her passion and second career in 1996 when she graduated from NC State University earning her Doctor of Veterinary Medicine. After her residency at The Animal Medical Center in New York City, she was awarded board certification in Internal Medicine.

She enjoys helping patients with multifaceted and refractory diseases by focusing on creating a comprehensive, innovative diagnostic and therapeutic plan for each family. She has served long-term on the board of the Northern Virginia and Loudoun County Veterinary Medical Associations. In her spare time, she enjoys time with family outdoors and volunteering as a licensed pilot for Angel Flight.

Mary Lester, DVM (residency trained in SAIM)

Dr. Lester.Dr. Lester is originally from upstate NY. She received her Doctor of Veterinary Medicine degree from Cornell University and performed both rotating and specialty (Internal Medicine) internships at Veterinary Specialists and Emergency Services in Rochester NY. Following completion of her internships, she pursued a residency in Small Animal Internal Medicine at the University of Florida that was completed in July 2020. Her primary areas of interest are endocrinology, nephrology, urology and immune-mediated disease, though she enjoys all aspects of internal medicine. Dr. Lester lives with her husband and three domestic short-hair cats (Merlin, Luna and Indy). She enjoys cooking (particularly exploring pasta making and traditional French techniques), knitting, reading and playing the ukulele. She is excited to start the next chapter of her veterinary career with the VCA’s Leesburg Veterinary Internal Medicine team!