Sergey Kalitenko MD is a holistic practitioner, Board Certified in Internal Medicine. He has two practices located in Great Neck, Long Island and Brooklyn. Dr. Kalitenko opened his private practice in 2001. His medical practice is based on the principles of holistic, functional medicine as well as age management principles. Bioidentical hormone replacement therapy is a keystone of his practice. He is firmly committed to finding natural solutions to health problems—and his first step is to use his expert diagnostic skills to get to the root of the problem. Dr. Kalitenko’s philosophy is that of wellness, not illness. For more information go to www.kalitenko.com.