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 7/17/2026

    Morocho B, Espat NJ, Somasundar P, Doonan M, Kwon S. Diffusion of innovation in medicine to evaluate impact of new technology. Am J Surg. 2026 Jul 17; 117150. PMID: 42476896.

    Read at: PubMed

  • Published 7/4/2026

    Kwon S, Uddanti A, Morocho B, Morocho C, Somasundar P, Calvino AS, Ahmad A. The Impact of Obesity on Intraoperative, Oncological, and Postoperative Endpoints in Robotic Pancreaticoduodenectomy. World J Surg. 2026 Aug; 50(8):2400-2408. PMID: 42400413.

    Read at: PubMed

  • Published 6/25/2026

    Morocho B, Lightfoot S, Calvino AS, Somasundar P, Kwon S. Evaluation of the Impact of Adjuvant Immunotherapy in Merkel Cell Carcinoma. J Natl Compr Canc Netw. 2026 Jun 25; 24(8). PMID: 42335961.

    Read at: PubMed

  • Published 6/12/2026

    Morocho B, Lightfoot S, Somasundar P, Kwon S. Refining adjuvant therapy options in patients with stage II melanoma. Immunotherapy. 2026 May; 18(7):527-535. PMID: 42284107.

    Read at: PubMed

  • Published 6/4/2026

    Kashtan H, Cooper L, Festen S, van Leeuwen BL, Tan KY, Montroni I, Somasundar P, Steimer DA, Pommerening M, Orgad R, Saur NM, Audisio RA, Jaklitsch MT. Rethinking Perioperative Care in Older Adults: A Plea for Specialization. Ann Surg Open. 2026 Jun; 7(2):e684. PMID: 42344476.

    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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