Dr. John D. Allendorf

Kepal Patel is a Surgical Oncologist and a General Surgeon in New York, New York. Dr. Patel is rated as an Elite provider by MediFind in the treatment of Osteitis Fibrosa. His top areas of expertise are Thyroid Cancer, Thyroid Nodule, Follicular Thyroid Cancer, Parathyroidectomy, and Thyroidectomy.

Glenda Callender is a Surgical Oncologist and a General Surgeon in Bridgeport, Connecticut. Dr. Callender is rated as a Distinguished provider by MediFind in the treatment of Osteitis Fibrosa. Her top areas of expertise are Hyperparathyroidism, Parathyroid Hyperplasia, Parathyroid Cancer, Thyroidectomy, and Parathyroidectomy.

Alexander Shifrin, MD, is an endocrine surgeon with Atlantic Medical Group Surgical Associates of CentraState and surgical director, CentraState Endocrine Program. He is board-certified in surgery by the American Board of Surgery, and in endocrine neck ultrasound and ultrasound-guided thyroid biopsy by the American College of Endocrinology. In addition, he is the first endocrine surgeon in the United States to have board certification in endocrine surgery (FEBS), a designation available only through the European Board of Surgery. He completed two fellowship training programs: one in trauma and surgical critical care, and a second in endocrine surgery.A national and international leader in the management of complex endocrine diseases, Dr. Shifrin has specific expertise in minimally invasive surgical procedures to treat endocrine cancers and diseases of the thyroid, parathyroid, and adrenal glands. These include thyroid gland diseases such as: thyroid cancer, multinodular goiter, Graves’ disease; parathyroid gland diseases such as: primary hyperparathyroidism, secondary and tertiary hyperparathyroidism; adrenal gland diseases such as: Cushing’s syndrome, primary hyperaldosteronism (Conn’s syndrome), pheochromocytoma, and adrenal incidentaloma; familial endocrine syndromes; and other hereditary endocrine syndromes. Utilizing an evidence-based approach, Dr. Shifrin employs state-of-the-art techniques to perform hundreds of surgeries each year with precision, accuracy, and extremely high success rates. He works in collaboration with other specialists to provide patients leading-edge cancer treatments in a safe environment. He is a Fellow of the American College of Surgeons (FACS), Fellow of the American College of Endocrinology (FACE), and Fellow of the International Society of Surgery (FISS).Dr. Shifrin has edited and authored several books and atlases, including the Atlas of Thyroid Surgery, Atlas of Parathyroid Surgery, Atlas of Adrenal Surgery, Atlas of Parathyroid Imaging and Pathology, Endocrine Emergencies, Advances in Treatment and Management in Surgical Endocrinology, and Endocrine Surgery Comprehensive Board Exam Guide, book chapters, and peer-reviewed papers. He is also a frequent speaker at national and international conferences.Dr. Shifrin pursued extensive surgery residency training at the Hospital of the University of Pennsylvania, followed by Penn State Milton S. Hershey Medical Center. Dr. Shifrin is a full Professor of Surgery at Hackensack Meridian School of Medicine and Clinical Associate Professor of Surgery at Rutgers Robert Wood Johnson Medical School. He is a participating provider of the Atlantic Accountable Care Organization. Dr. Shifrin is rated as a Distinguished provider by MediFind in the treatment of Osteitis Fibrosa. His top areas of expertise are Parathyroid Hyperplasia, Familial Isolated Hyperparathyroidism, Hyperparathyroidism, and Neonatal Severe Hyperparathyroidism.