Biography
Dr. S.Viswanath is a Consultant – Medical Oncology at Apollo Cancer Centre, Chennai. He has significant experience in treating Gastrointestinal cancers, colorectal cancer, liquid tumours and Head and Neck cancers.  
He is a tutor to postgraduate medical oncology students. He has several publications in peer-reviewed journals, both nationally and internationally.  
Areas of Expertise
- Head and Neck   
- Colorectal Cancer
- Gastrointestinal Cancers    
- Chemotherapy
- Immunotherapy
- Targeted Therapy 
Education & Training
- DM (Medical Oncology)   
- MD (General Medicine)   
Professional Work
- Consultant, Medical Oncology, Apollo Cancer centre
- Consultant, Medicine and Medical Oncology, Command Hospital
- Associate Professor, Medicine and Medical Oncology, Command Hospital
