Dr. (Brig) S. Viswanath

Professional Summary

Dr. (Brig) S. Viswanath is a highly accomplished Senior Consultant in Medical Oncology with over 15 years of dedicated experience in medicine and medical oncology. A distinguished former Brigadier in the Indian Armed Forces Medical Services, Dr. Viswanath brings a unique combination of military discipline, academic rigor, and compassionate patient care to his practice. He holds an MD in General Medicine and a DM in Medical Oncology from some of India's most respected medical institutions, making him exceptionally well-equipped to manage complex cancer cases. Throughout his illustrious career, Dr. Viswanath has served in progressively senior roles across premier military hospitals in India — from Assistant Professor to Professor and Senior Advisor in Medicine and Medical Oncology. His academic contributions include published research in rheumatology, bronchogenic carcinoma, and lymphoma, reflecting a broad clinical acumen that extends beyond oncology. He has also served as Commandant of the Military Hospital in Chennai, underscoring his leadership capabilities. Currently practicing at the Cancer Centre of Rela Hospital, Chennai, Dr. Viswanath is committed to delivering evidence-based, personalized cancer treatment to patients from India and around the world. International patients seeking expert oncological care can trust his extensive clinical experience and multidisciplinary approach to cancer management.

Specializations

• Medical Oncology

Procedures & Expertise

• Chemotherapy for Cancer
• Cancer Immunotherapy
• Targeted Therapy for Cancer
• Hormone Therapy for Breast Cancer
• Hormone Therapy for Prostate Cancer
• Hormone Therapy for Gynecologic Cancers
• CAR-T Cell Therapy
• Blood Cancer Treatment (Leukemia, Lymphoma, Myeloma)

Education & Qualifications

• MBBS – Karnatak Medical College, Hubli, Karnatak University, Dharwad
• MD (General Medicine) – Command Hospital, Airforce, Bangalore, Rajiv Gandhi University of Health Science, Bengaluru
• DM (Medical Oncology) – Cancer Institute (WIA), Adyar, Chennai, The Tamilnadu MGR Medical University, Chennai

Hospital Affiliations

• Rela Hospital (Cancer Centre), Chennai — Senior Consultant, Medical Oncologist (Current)

Previous Positions

• Command Hospital (WC) — Classified Specialist, Assistant Professor (2006–2009)
• Command Hospital (EC) — Classified Specialist & Senior Advisor, Assistant/Associate Professor (2009–2012)
• Army Hospital (R&R) — Senior Advisor, Associate Professor & Professor (2012–2018)
• Command Hospital (CC), Lucknow — Senior Advisor & Consultant, Professor (2018–2020)
• Military Hospital, Chennai — Commandant (2020–2021)

Research & Publications

• Singal VK, Viswanath S, Chengappa ANM. "Two cases of refractory rheumatoid arthritis treated with Rituximab." Indian Journal of Rheumatology, Vol 2, Issue 3, S27, September 2007.
• Sundaram V, Sanyal N. "Clinicopathological profile of bronchogenic carcinoma in a tertiary care hospital in eastern part of India." Clinical Cancer Investig J, 2014;3:220-4.
• Darling HS, Viswanath S, Rajeev V. "T-lymphoblastic lymphoma in an undiagnosed rheumatoid arthritis – A rare occurrence." Indian Journal of Rheumatology, Vol. 10, Issue 1, p48-50, 2015.