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.
Titles & Roles
Assistant Professor, Department of Hematology and Medical Oncology
Emory University School of Medicine
Education & Training
Education
Fellowship, Hematology/Oncology, 2025
University of Iowa Hospital and Clinics
Residency, Internal Medicine, 2022
Louisiana State University Health Science Center
Internship, Internal Medicine, 2020
Louisiana State University Health Science Center
Medical Education, MBBS, 2018
Government Medical College
Board Certifications
Medical Oncology
American Board of Internal Medicine, 2025
Internal Medicine
American Board of Internal Medicine, 2022
Professional Memberships
American Society of Hematology
American Society of Clinical Oncology
American Medical Association
American Association for Cancer Research
Research
Publications
Dr. Grewal has published extensively in peer-reviewed scientific journals.
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