He is rated highly by his patients. His areas of expertise include the following: ulcers, carotid artery stenting, and angioplasty. Dr. Lewinstein takes Blue Cross/Blue Shield, Coventry, and TRICARE, in addition to other insurance carriers. Dr. Lewinstein attended medical school at the University of Southern California (USC), Keck School of Medicine. His medical residency was performed at Los Angeles County+USC Medical Center. He has received the distinction of Atlanta Super Doctors. In addition to English, Dr. Lewinstein speaks Spanish. He is professionally affiliated with Emory Clinic, WellStar North Fulton Hospital, and Children's Healthcare of Atlanta.