Ponnandai Somasundar, MD

Associate Professor, Boston University Chobanian & Avedisian School of Medicine

Biography

Ponnandai Somasundar, MD, is Associate Chief of Surgical Oncology and Director of Geriatric Oncology at Roger Williams. He received his Fellowship training at Roger Williams Medical Center/Chobanian and Avedisian School of Medicine. After graduating from Madras Medical College, Dr. Somasundar completed residencies at Maimonides Medical Center in Brooklyn, New York,
and West Virginia University. Dr. Somasundar’s clinical expertise is in the areas of liver surgery, pancreas surgery, melanoma, thyroid cancer, colorectal surgery, HIPEC, and abdominal wall reconstruction.

Publications

  • Published 5/7/2025

    Salehi O, Somasundar P, Espat NJ, Calvino AS, Ali M, Lightfoot S, Kwon S. Endoscopic resection versus gastrectomy for clinical T1a gastric adenocarcinoma: Predictors of nodal upstaging. Surgery. 2025 May 07; 109377. PMID: 40340160.

    Read at: PubMed

  • Published 4/16/2025

    Jimenez M, Salehi O, Somasundar P, Dandeneau J, Chebl J, Vognar L, Espat NJ, Calvino AS, Kwon S. Impact of American College of Surgeons Geriatric Surgery Verification Program in Patients Undergoing Major Abdominal Oncologic Operation at a Cancer Center. J Am Coll Surg. 2025 May 01; 240(5):749-757. PMID: 39655814.

    Read at: PubMed

  • Published 4/1/2025

    Stillman M, Somasundar P, Espat NJ, Calvino AS, Kwon S. ASO Visual Abstract: Negative Impact of Systemic Therapy on Survival in Patients Undergoing Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy for Low-Grade Metastatic Appendiceal Adenocarcinoma. Ann Surg Oncol. 2025 Apr; 32(4):2949-2950. PMID: 39601937.

    Read at: PubMed

  • Published 3/7/2025

    Kwon S, Liberman M, Somasundar P, Calvino AS, Ahmad A. Frailty in robotic pancreaticoduodenectomy: quantifying the impact on perioperative outcomes. HPB (Oxford). 2025 Mar 07. PMID: 40102142.

    Read at: PubMed

  • Published 1/25/2025

    Sousa A, Al Masad Q, Pena P, Espat NJ, Calvino AS, Somasundar P, Abdelfattah T, Kwon S. Impact of immunotherapy on the care patterns and outcomes of patients with advanced hepatocellular carcinoma. Clin Res Hepatol Gastroenterol. 2025 Mar; 49(3):102542. PMID: 39870347.

    Read at: PubMed

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Websites

Education

  • University of Madras, MBBS
  • University of Massachusetts Amherst, MPH
  • Tamil Nadu Dr. M.G.R. Medical University, MS

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