Dr. Tokayer received his B.A. in from Yeshiva College and his M.D. from Albert Einstein College of Medicine of Yeshiva University.  He completed an internship and residency at the Bronx Municipal Hospital Center and GI and Hepatology fellowship at Johns Hopkins Medical Center. He received an MHS degree in Clinical Epidemiology from Johns Hopkins School of Public Health. Dr. Tokayer then joined the Montefiore GI Faculty in 1992. He has been involved in the spectrum of clinical patient care, endoscopic interventions and teaching in the GI fellowship program. His areas of interest include clinical practice, patient care and education, endoscopic procedures and interventions, functional GI and motility disorders. He is Director of the GI Motility Lab where studies such as Esophageal Manometry,  Esophageal Acid Monitoring and Impedance Testing, Ano-rectal Manometry and Defecatory Testing, Hydrogen Breath Testing for Bacterial overgrowth and Carbohydrate Maldigestion , and studies of gastric and intestinal transit. He works closely with colleagues of the Department of Radiology and Nuclear Medicine as well as the Department of Surgery in diagnosing and treating GI motility disorders.