Dr. Jeffrey N. Elfenbein

Dr. Jeffrey Elfenbein is a board-certified Internist practicing in Seaford, New York. His concierge internal medicine practice offers Long Island patients personalized care. Dr. Elfenbein has been in practice for over 30 years and is passionate about...

Dr. Jeffrey Elfenbein is a board-certified Internist practicing in Seaford, New York. His concierge internal medicine practice offers Long Island patients personalized care. Dr. Elfenbein has been in practice for over 30 years and is passionate about providing holistic care to his patients.