Dr. K. R. Prasanna Kumar is one of Chennai's most experienced and trusted Radiation Oncologists, with over 15 years of specialized expertise in advanced cancer care, precision radiotherapy, and organ-preserving cancer treatment. Currently serving as Senior Consultant – Radiation Oncology at SIMS Hospital, Chennai, he delivers comprehensive, evidence-based, and patient-centered radiation therapy for a wide spectrum of cancers including complex and high-acuity solid tumors. Trained at Apollo Speciality Hospital and having served at HCG Cancer Centre, Dr. Prasanna Kumar brings extensive multi-institutional oncology expertise to SIMS Hospital. He is proficient in the full spectrum of modern radiotherapy technologies including IMRT, IGRT, SBRT, Stereotactic Radiosurgery (SRS), CyberKnife, TrueBeam, and HDR Brachytherapy, making him a highly sought-after radiation oncology specialist in Chennai. A lifetime member of the Association of Radiation Oncologists of India (AROI) and an active participant in national oncology conferences, he is deeply committed to advancing cancer care, clinical research, and public cancer awareness in India.
Best Outgoing Student Award – 12th Standard (2002)
Distinction in Biochemistry and Pharmacology – Madurai Medical College (2003 – 2005)
First Class in MBBS – Madurai Medical College, Tamil Nadu Dr. MGR Medical University
Research Thesis – "Analysis of Acute Toxicities, Pathological Complete Response, and Sphincter Preservation Rate of Pre-Operative Chemoradiation in Locally Advanced Rectal Cancers"
Paper Presentation – TN-PY AROI 2012: "Role of CyberKnife Radiosurgery in Choroidal Melanoma"
Core Team Member – NABH Accreditation, Apollo Speciality Hospital
Regular speaker and panelist at national oncology conferences and cancer awareness programs across India
Delivered multiple public cancer awareness talks contributing to community health education
Talks & Publications
Analysis of Acute Toxicities, Pathological Complete Response, Sphincter Preservation Rate of Preoperative Chemoradiation in Locally Advanced Rectal Cancers (Thesis)
Presented ‘Role of Cyberknife Radiosurgery in Choroidal Melanoma’ at the TN-PY AROI Conference (2012).
Awarded Distinction in Biochemistry and Pharmacology (2005).
Fellowship
DNB – Radiotherapy, National Board of Examinations, New Delhi
Lifetime Member – Association of Radiation Oncologists of India (AROI)
Member – Medical Council of India
Member – Tamil Nadu Medical Council
Volunteer – National Service Scheme (NSS), India
Volunteer – Blood Donors Club, Madurai Medical College
