Dr. Jonas Leibowitz, a Board Certified Yonkers, NY physician specializing in Endocrinology, Diabetes & Metabolism, has been selected by Castle Connolly Medical Ltd. for inclusion in its authoritative guide to the top primary care and specialty care doctors in the tri-state metropolitan New York area. Castle Connolly Medical Ltd., America's trusted source for identifying Top Doctors, has published the 15th edition of Top Doctors: New York Metro Area and has selected Jonas Leibowitz, MD for this exclusive honor.