Dr. Jianjun Li is a gastroenterologist in New York, New York and is affiliated with multiple hospitals in the area, including Lenox Hill Hospital at Northwell Health, Maimonides Medical Center and Brooklyn Surgery Center. He received his medical degree from Sun Yat-Sen University of Medical Science and has been in practice for more than 20 years. Dr. Jianjun Li has expertise in treating inflammatory bowel disease (ibd), gastroenteritis, among other conditions - see all areas of expertise. Dr. Jianjun Li accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Jianjun Li is highly recommended by patients.