3 Best Endocrinologists in Allentown, PA

“Dr. Marc A. Vengrove obtained his undergraduate degree from Muhlenberg College in 1978 and his medical degree from the Philadelphia College of Osteopathic Medicine in 1982. He earned his residency in Internal Medicine at John F. Kennedy Memorial Hospital, Stratford, NJ, and his fellowship in Endocrinology and Metabolism at the Medical College of Pennsylvania, Philadelphia, PA. He has over 51 years of experience in the field of endocrinology. Dr. Marc A. Vengrove holds board certification in Endocrinology, Diabetes, and Metabolism from the American Osteopathic Board of Internal Medicine. He warmly welcomes new patients to his practice.”

“Dr. Gretchen A. Perilli earned her medical degree from Jefferson Medical College of Thomas Jefferson University and completed her residency in Internal Medicine at Lehigh Valley Hospital in Allentown. She went on to complete a fellowship in Endocrinology at Robert Wood Johnson–University of Medicine and Dentistry of New Jersey. With over 19 years of experience in endocrinology, Dr. Perilli is board-certified in Endocrinology, Diabetes, and Metabolism by the American Board of Internal Medicine. She currently practices at LVPG Endocrinology in Allentown and warmly welcomes new patients to her practice.”

“2026 Highlights: Dr. Andrew J. Brackbill earned his Doctor of Medicine from Sidney Kimmel Medical College at Thomas Jefferson University. He specializes in providing high-quality endocrinology services and is board-certified in Endocrinology, Diabetes and Metabolism by the American Board of Internal Medicine. Dr. Brackbill is dedicated to offering expert care and personalized treatment plans to help patients manage a wide range of endocrine disorders effectively. With a commitment to excellence and a focus on patient well-being, Dr. Andrew J. Brackbill is a trusted healthcare provider in the Allentown area for individuals seeking specialized endocrinology services. Drawing on his extensive experience and expertise in endocrinology, he ensures that each patient receives personalized, high-quality care.”