Udhayvir S. Grewal, MD

Udhayvir S. Grewal, MBBS, is a board-certified medical oncologist specializing in gastrointestinal cancers and neuroendocrine neoplasms, including neuroendocrine tumors and carcinomas. Dr. Grewal's research is focused on therapeutic development and care delivery in gastrointestinal and neuroendocrine cancers. He joined the clinical staff at Winship Cancer Institute as an attending physician in 2025. His practice is based at Winship Cancer Institute at Emory Midtown and Grady Memorial Hospital.

Dr. Grewal is an assistant professor in the Department of Hematology and Medical Oncology at Emory University School of Medicine.

He earned his medical degree from Baba Farid University of Health Sciences in Faridkot, India. He completed his internal medicine residency at Louisiana State University in Shreveport and his hematology and oncology fellowship at the University of Iowa in Iowa City.