Cancer is a word that strikes fear into the hearts of millions around the world. It brings with it not only the emotional weight of the diagnosis but also a whirlwind of medical jargon and treatment options that can leave patients and their families feeling overwhelmed. Among the various treatments available, radiation therapy has proven to be a powerful weapon in the fight against cancer. If you’re searching for the best radiation oncologist in Chennai, it’s important to understand why this treatment is crucial, and how finding the right specialist can make a difference.
What is a Radiation Oncologist?
A radiation oncologist is a medical doctor who specializes in treating cancer using radiation therapy. They work closely with a multidisciplinary team to plan and deliver precise radiation treatments tailored to each patient’s condition. These specialists assess the type, size, and location of tumors to determine the most effective approach, often combining therapies for better outcomes. The best radiation oncologist in Chennai is skilled in minimizing side effects while maximizing treatment effectiveness, ensuring a balance between cancer control and patient quality of life.
Understanding Radiation Therapy
Radiation therapy is one of the most common and effective treatments for cancer. It uses high-energy radiation to destroy or shrink cancer cells, preventing them from growing and multiplying. There are two main types of radiation therapy: external beam radiation, which directs radiation at the tumor from outside the body, and internal radiation (brachytherapy), where radioactive material is placed inside the body near cancer cells.
The best radiation oncologist in Chennai is skilled in both methods, offering the most advanced and personalized care. Radiation therapy can be used in various stages of cancer treatment:
- As a standalone treatment: To destroy cancer cells, especially in early-stage cancers.
- Before surgery: To shrink tumors, making them easier to remove.
- After surgery: To eliminate any remaining cancer cells.
- Alongside chemotherapy: As part of a combination therapy for more aggressive forms of cancer.

Best Radiation Oncologist in Chennai
Dr. V. Balasundaram
- Qualification: MBBS, MD (Radiation Oncology)
- Experience: 25+ years
Dr. V Balasundaram is a renowned figure in the field of radiation oncology with over 25 years of experience, recognized as the best radiation oncologist in Chennai and especially prominent in Vadapalani. He leads Target Cancer Care with a vision focused on personalized cancer treatment protocols that are both evidence-based and technologically advanced.
Key Highlights:
- Dr. Balasundaram specializes in Intensity-Modulated Radiation Therapy (IMRT) and Stereotactic Body Radiotherapy (SBRT), known for their precision and reduced side effects.
- He emphasizes patient education and emotional support, creating customized plans that consider the unique challenges each patient faces.
- A significant portion of his practice is in Vadapalani, where he is widely considered the best radiation oncologist in Vadapalani, combining clinical excellence with compassionate care.
- He collaborates closely with surgical and medical oncologists, ensuring an integrated approach that enhances treatment outcomes.
- His leadership and involvement in clinical trials have elevated his status as one of the top radiation oncologists in Chennai.

Dr. S. Gurumurthy
- Qualification: MBBS, DMRT, FCIP., MRSH, (London)
- Experience: 28+ years
Dr. S. Gurumurthy is widely acknowledged as one of the best radiation oncologists in Chennai, with nearly three decades of expertise in radiation therapy. He practices at VS Hospitals, where his dedication to innovation and holistic cancer care makes him a trusted name.
Key Highlights:
- His special interest lies in advanced radiation planning techniques like 3D-CRT and IGRT, ensuring accurate tumor targeting.
- He is deeply committed to clinical excellence and often integrates palliative care alongside curative treatment plans.
- Recognized as one of the Best Doctors in Radiation Oncology Chennai, he is respected for his ethical approach and patient-centered treatment.
- Under his care, patients benefit from detailed treatment discussions, ensuring clarity and confidence in the therapy process.
- He is often listed among the top radiation oncologist in Chennai due to his consistency in successful treatment outcomes.
Dr. M. Balu David
- Qualification: MD, DMRT, FRO (USA)
- Experience: 41+ years
With more than 41 years of service, Dr. M. Balu David is a legend in radiation oncology. Practicing at VS Hospitals, he is among the best radiation oncologist in Chennai, known for shaping cancer care practices in the region.
Key Highlights:
- Dr. David brings international experience from the USA, blending global standards with Indian clinical demands.
- His specialties include brachytherapy and treatment of rare cancers, making him a highly versatile oncologist.
- As one of the Radiation Oncology doctors in Chennai with the longest active service, he has mentored numerous young specialists.
- Patients often praise his calm demeanor, extensive knowledge, and supportive follow-up care.
- He is widely listed among the Best Doctors in Radiation Oncology Chennai for his enduring dedication and outstanding clinical performance.
Dr. Kavithendral
- Qualification: MBBS, M.D., D.M., ECMO., CCEPC
- Experience: 4+ years
Dr. Kavithendral is a young and dynamic radiation oncologist practicing at Medway Hospitals. Though relatively new, she is quickly building a reputation as one of the best radiation oncologist in Chennai for her empathetic patient care and evidence-based treatment protocols.
Key Highlights:
- She is adept at handling modern radiation technologies and understands the evolving trends in cancer care.
- Her multidisciplinary collaboration ensures each patient receives holistic care throughout their cancer journey.
- Patients benefit from her personalized attention, particularly those undergoing radiation for breast and gynecologic cancers.
- Despite being early in her career, she stands out among Radiation Oncology doctors in Chennai for her passion, clarity in communication, and precision.
Dr. Jyothish Kulangarath
- Qualification: MBBS, MD – Radiotherapy
- Experience: 1+ years
Dr. Jyothish is a recent addition to the field of radiation oncology, practicing at Kannappa Hospital. His academic excellence and training in the latest therapeutic modalities make him a rising talent among the best radiation oncologist in Chennai.
Key Highlights:
- He brings fresh knowledge and up-to-date protocols in tumor radiobiology and treatment planning.
- His focus is on delivering safe and effective care using patient-friendly technology and clear education throughout the process.
- While still growing his clinical experience, his dedication marks him as one of the emerging Radiation Oncology doctors in Chennai.
Dr. Prasad E
- Qualification: DMRT/MD (Radiation Oncology)/DM (Medical Oncology)/ECMO
- Experience: 22+ years
Dr. Prasad E is an experienced dual-specialty oncologist, qualified in both radiation and medical oncology. Practicing at Apollo Hospitals, he is considered one of the top radiation oncologist in Chennai for his multidisciplinary expertise.
Key Highlights:
- His dual qualification allows him to combine chemotherapy and radiation therapy for maximum tumor control.
- He specializes in complex cancer cases involving brain, head and neck, and gastrointestinal tumors.
- Dr. Prasad is known among the Best radiation oncologist in Chennai for his ability to create effective, patient-specific treatment plans.
- He has played an instrumental role in setting up advanced radiation units within Apollo’s oncology department.
Dr. Runitha Unna N
- Qualification: MBBS., DMRT., DNB
- Experience: 5+ years
Dr. Runitha Unna N is a consultant radiation oncologist at Dr. Kamakshi Memorial Hospitals. With a strong academic background and focused clinical practice, she is gradually establishing her name among the best radiation oncologist in Chennai.
Key Highlights:
- She focuses on patient-centric treatment plans that reduce discomfort and improve therapy outcomes.
- Her strengths include strong communication skills, efficient planning, and follow-up care during and after treatment.
- As a woman oncologist, she offers culturally sensitive care to female patients battling cancers, particularly breast and cervical cancers.
- Her evidence-based methods and dedication place her among the most reliable and compassionate Radiation Oncology doctors in Chennai.
What Does a Radiation Oncologist Do?
A radiation oncologist is a medical doctor specializing in treating cancer using radiation therapy. They design precise treatment plans to target cancer cells while minimizing damage to healthy tissues. These specialists collaborate with medical oncologists, surgeons, and other healthcare professionals to provide comprehensive cancer care. They also monitor patients’ progress, adjust treatment as needed, and manage side effects. A radiation oncologist plays a crucial role in ensuring that radiation therapy is safe and effective. If you’re searching for the Best cancer radiation therapy doctor in Chennai, it’s essential to choose an experienced specialist for optimal treatment outcomes.
Types of Radiation Therapy
Radiation therapy is a widely used treatment for cancer, and it comes in different forms depending on the type and stage of cancer. The two primary types are:
- External Beam Radiation Therapy (EBRT): This is the most common type, where a machine delivers high-energy rays to the tumor from outside the body. Advanced forms of EBRT include:
- Intensity-Modulated Radiation Therapy (IMRT): Allows precise targeting of tumors with varying radiation doses.
- Stereotactic Body Radiation Therapy (SBRT): Delivers high-dose radiation to small, well-defined tumors.
- Internal Radiation Therapy (Brachytherapy): In this method, radioactive material is placed inside or near the tumor. It is commonly used for prostate cancer, cervical, and breast cancers.
Choosing the right type of radiation therapy depends on various factors, including tumor location and patient health. If you’re looking for the Best cancer radiation therapy doctor in Chennai, consulting a top expert will help determine the most effective approach for your treatment.

Treatment Procedures Handled by Radiation Oncologists
Radiation oncologists handle a wide range of procedures related to the treatment of cancer, including:
- External Beam Radiation Therapy (EBRT): This is the most common form of radiation therapy, where a machine directs focused radiation beams at the tumor from outside the body.
- Brachytherapy: This involves placing radioactive material inside or very close to the tumor, allowing for more targeted treatment.
- Stereotactic Radiation Therapy (SRS/SBRT): This technique uses highly focused radiation beams to treat tumors with extreme precision, often used for tumors in the brain or spine.
- Proton Therapy: A newer form of radiation therapy that uses protons instead of X-rays, offering precise treatment with minimal side effects.
Each of these procedures requires the expertise of a leading radiotherapy specialist in Chennai to ensure safe and effective treatment outcomes.
Services Offered by Radiation Oncologists
Best radiation oncologist in chennai offer a wide range of services aimed at providing the best care for cancer patients, including:
- Comprehensive Cancer Care: Diagnosis, treatment planning, and follow-up care for various cancers, including breast, prostate, lung cancer, head and neck cancers, and more.
- Multidisciplinary Treatment: Collaborating with surgeons, medical oncologists, and other specialists to create a personalized treatment plan for each patient.
- Palliative Care: Providing symptom relief and improving the quality of life for patients with advanced cancer.
- Advanced Technology: Access to state-of-the-art equipment such as linear accelerators, proton therapy machines, and stereotactic radiosurgery systems to deliver precise and effective treatments.
- Patient Counseling: Offering psychological support and guidance to help patients and their families understand the treatment process, side effects, and the path to recovery.
Conclusion
Cancer treatment is not something you should delay. The sooner you take action, the better your chances of achieving a successful outcome. Whether you’re considering radiation therapy as a standalone treatment or as part of a broader cancer care plan, the expertise of the leading radiotherapy specialist in Chennai will guide you every step of the way. Trust in their experience, advanced technology, and compassionate care to give you the best possible outcome. Don’t wait any longer—book your consultation today with the best radiation oncologist in Chennai and take control of your health journey.