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 2/15/2026

    Morocho B, Calvino AS, Somasundar P, Kwon S. Endoscopic Resection Versus Surgical Resection for T1/T2 Duodenal Adenocarcinoma: Considerations of Nodal Upstaging. J Surg Oncol. 2026 Apr; 133(5):632-641. PMID: 41693301.

    Read at: PubMed

  • Published 2/3/2026

    Morocho B, Lightfoot S, Somasundar P, Kwon S. Trends and Outcomes of the Liver-First Surgical Approach for Patients with Colorectal Cancer and Isolated Liver Metastases. Ann Surg Oncol. 2026 Feb 03. PMID: 41634525.

    Read at: PubMed

  • Published 12/20/2025

    Myers S, Somasundar P, DuMontier C, Kim DH, Kwon S. Management of surgically resectable colorectal liver metastases in older patients. J Geriatr Oncol. 2026 Mar; 17(2):102840. PMID: 41422599.

    Read at: PubMed

  • Published 10/17/2025

    Kaper M, Chebl JA, Vognar L, Somasundar P, Kwon S. Care at home program study of complex geriatric surgical oncology patients. J Geriatr Oncol. 2026 Jan; 17(1):102780. PMID: 41109130.

    Read at: PubMed

  • Published 10/10/2025

    Patel H, Somasundar P, Espat NJ, Calvino AS, Kwon S. Defining the role of thyroidectomy in patients with metastatic differentiated thyroid carcinoma by age groups. Am J Surg. 2025 Dec; 250:116660. PMID: 41138395.

    Read at: PubMed

View All 80 Publications:   View Full Profile in BUMC

Websites

Education

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

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