Dr. Divya Mallam is a double board certified, highly rated and personable gastroenterologist at Manhattan Gastroenterology. Dr. Mallam is board-certified in Gastroenterology and Internal Medicine by the American Board of Internal Medicine (ABIM). Dr. Mallam has received numerous academic and clinical awards and has been chosen to the prestigious list of “SuperDoctors”. She has earned a series of accolades for her outstanding academic performance including the UCLA Dean’s Honors List as well as being chosen as an Alumni Scholar. She is a proud member of the American Gastroenterological Association (AGA) and the American College of Physicians (ACG) and the American Society for Gastrointestinal Endoscopy (ASGE).
Dr. Mallam has been published in medical literature and has regularly presented abstracts and presentations in her field. She has a strong passion for patient care and strives to deliver the highest quality of care to her patients that have earned her an excellent reputation.

Dr. Mallam has a special interest in women’s gastroenterology and prevention, colon cancer screening, inflammatory bowel disease, and Irritable Bowel Syndrome, Hemorrhoid Treatment, Heartburn and Celiac disease. Dr. Mallam and the Manhattan Gastroenterology team are affiliated with the world-renowned NY Presbyterian/Weill Cornell Medical Center. Dr. Mallam’s goal is to deliver truly exceptional and highly personalized gastroenterology care right in your neighborhood. Dr. Mallam looks forward to meeting you!

Hospital affiliations

• Weill Cornell Medical Center / New York-Presbyterian Hospital

Board certifications

• American Board of Internal medicine (Gastroenterology)

• American Board of Internal Medicine (Internal Medicine)

Education and training

• Medical School – SUNY Downstate Medical Center

• Harbor-UCLA Medical Center- Residency in Internal Medicine

• State University of New York, Downstate Medical Center, Fellowship in Gastroenterology

• University of California- Los Angeles (UCLA)

Professional memberships

• American Society for Gastrointestinal Endoscopy

• American Gastroenterological Association

• American College of Gastroenterology

Awards Received

• SuperDoctors Rising Stars 2024

• SuperDoctors Rising Stars 2023

• SuperDoctors Rising Stars 2022

• Dean’s Honor’s List

• Alumni Scholar

Medical Publications

• Zhu, Rattanakorn, Mallam D, “Survival Benefits in Colorectal Adenocarcinoma with the Use of Metformin Among a Black Diabetic Inner City Population”, Colorectal Cancer, 2017.

• Saab, Mallam D. “Impact of Coffee on Liver Diseases: A Systematic Review”. Liver International, 2014

• Mallam D, “Importance of Chromoendoscopy and ESD Technique in an IBD Patient”, Annual Meeting, ACG, 2016.

• Pham S, mallam D, “Foregin Birth is an Independent Predictor of Colorectal Cancer Survival in an Urban Safety Net Hospital”, Annual Meeting, ACG, 2016.

• Mallam, D, Singh IM. “Inappropriate Prescription of Proton Pump Inhibitors Upon Hospital Discharge”, Annual ACG Meeting, 2013.

• Mallam D, Ashok. “Brunner’s Gland Hamartoma of the Duodenal Bulb: A Rare Cause of Upper Gastrointestinal Hemorrhage”, Annual ACG meeting, 2013.

• Mallam, D. Zollinger Ellison Syndrome Presenting as Chronic Diarrhea. Annual meeting, ACG, 2013.

• Mallam, D, Nadeau K, “Are there GEnder Differences in Children with Eosinohillic Esophagitis?” Annual Meeting, Solomon Scholars Reserach Program