Ponnandai Somasundar, MD
Associate Professor, Surgery
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.
Other Positions
- Roger Williams Medical Center
Education
- University of Madras, MBBS
- University of Massachusetts Amherst, MPH
- Tamil Nadu Dr. M.G.R. Medical University, MS
Publications
- Published on 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 on 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 on 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 - Published on 1/18/2025
Ali MS, Ahn J, Espat NJ, Calvino AS, Koness J, Somasundar P, Kwon S. Disparities in utilization of novel cancer therapies in advanced stage III and IV melanoma and variance in outcomes. Immunotherapy. 2025 Jan; 17(1):37-46. PMID: 39825755.
Read at: PubMed - Published on 1/16/2025
Salehi O, Zhao I, Abi Chebl J, Somasundar P, Vognar L, Espat NJ, Calvino AS, Kwon S. Characteristics of older patients undergoing major oncological surgery: Insights from the Geriatric Surgery Verification Program. J Geriatr Oncol. 2025 Mar; 16(2):102189. PMID: 39818018.
Read at: PubMed - Published on 1/3/2025
Al Masad Q, Sousa A, Pena P, Sammartino CJ, Somasundar P, Abdelfattah T, Espat NJ, Calvino AS, Kwon S. Relationship of Time to First Therapy and Survival Outcomes of Neoadjuvant Chemotherapy Versus Upfront Surgery Approach in Resectable Pancreatic Ductal Adenocarcinoma. J Surg Res. 2025 Feb; 306:111-121. PMID: 39754820.
Read at: PubMed - Published on 12/2/2024
Salehi O, Chandani KU, Sammartino CJ, Somasundar P, Espat NJ, Calvino AS, Kwon S. Impact of medicaid expansion on screenable versus non-screenable gastrointestinal cancers. J Cancer Policy. 2025 Mar; 43:100525. PMID: 39631725.
Read at: PubMed - Published on 11/20/2024
Abi Chebl J, Somasundar P, Vognar L, Kwon S. Review of frailty in geriatric surgical oncology. Scand J Surg. 2024 Nov 20; 14574969241298872. PMID: 39568134.
Read at: PubMed - Published on 11/5/2024
Stillman M, Somasundar P, Espat NJ, Calvino AS, Kwon S. 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 Jan; 32(1):221-229. PMID: 39500859.
Read at: PubMed - Published on 2/1/2024
Bains K, Somasundar PS, Chebl JA, Vognar LA. Impact of Cancer on Nutrition in the Geriatric Cancer Population. R I Med J (2013). 2024 Feb 01; 107(2):36-39. PMID: 38285751.
Read at: PubMed
View 58 more publications: View full profile at BUMC