Dr. Leffler received his D.D.S. degree from Columbia University in 1982, after which he completed residency training in oral and maxillofacial surgery at Bellevue Hospital Center/New York University, subsequently becoming board-certified in oral and maxillofacial surgery. He practiced oral surgery in both office and academic settings, supervising the training of residents and dental students in out-patient anesthesia, orthognathic surgery, dentoalveolar surgery, and emergency management of medically compromised patients. Dr. Leffler then received his law degree from New York Law School and practiced trial law in New York, having represented dentists and dental specialists in dental malpractice litigation, dental board disciplinary actions, and peer review proceedings. He is currently a dental and oral and maxillofacial surgery consultant for MedPro. Outside of professional activities, he serves as a United States Coast Guard Auxiliary Flotilla Commander and as a marathon guide runner for disabled athletes who are members of Achilles International, for which he also sits on the Board of Directors of its New Jersey Chapter.