Dr. Richard M Castagnino, MD

Dr. Richard Castagnino is an internal medicine physician who has dedicated 37 years to caring for patients with complex medical conditions. He earned his medical degree from Rutgers Robert Wood Johnson Medical School and completed his residency training at Stony Brook University Medical Center. With nearly four decades of clinical experience, Dr. Castagnino brings extensive knowledge to his practice. He is fluent in both English and Spanish.

Dr. Castagnino practices at Northport VA Medical Center in Northport, New York, where he focuses on managing serious health conditions that require ongoing care. He specializes in treating chronic kidney disease, including advanced stage 5 disease, and helps patients manage type 2 diabetes. His clinical expertise includes ordering essential diagnostic tests such as complete blood counts, A1c monitoring for diabetes management, and lipid panels to assess cardiovascular health.