“At Gleneagles Hospitals, Mumbai, my follow-up cancer treatment was well-planned throughout. From radiotherapy to chemotherapy cycles, the entire process was smooth.”

Dr. Shyam Kishore Shrivastava
Radiation OncologistWith over 40 years of experience, Dr. Shyam Shrivastava is one of Mumbai’s most respected Radiation Oncologists. He specialises in modern radiotherapy techniques, including intensity-modulated and image-guided radiation therapies, and has successfully treated thousands of patients.
Why Choose Dr. Shrivastava?
- Extensive Experience: Dr. Shrivastava has been in the field of Radiation Oncology for over 40 years, treating thousands of cancer patients.
- Expertise in Modern Radiotherapy: He is recognised as an expert in modern radiotherapy practice using state-of-the-art modalities, including IMRT, IGRT, stereotactic radiation, SBRT, image-guided brachytherapy & intraoperative brachytherapy.
- National & International Leadership: Dr. Shrivastava occupies a leadership position in many cancer organisations nationally and internationally, including having served as President of Association of Radiation Oncologists of India, Indian Association of Hyperthermia in Medicine, and Federation of Asian Organisations for Radiation Oncology.
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With over 40 years of experience, Dr. Shyam Shrivastava is one of Mumbai’s most respected Radiation Oncologists. He specialises in modern radiotherapy techniques, including intensity-modulated and image-guided radiation therapies, and has successfully treated thousands of patients.
Why Choose Dr. Shrivastava?
- Extensive Experience: Dr. Shrivastava has been in the field of Radiation Oncology for over 40 years, treating thousands of cancer patients.
- Expertise in Modern Radiotherapy: He is recognised as an expert in modern radiotherapy practice using state-of-the-art modalities, including IMRT, IGRT, stereotactic radiation, SBRT, image-guided brachytherapy & intraoperative brachytherapy.
- National & International Leadership: Dr. Shrivastava occupies a leadership position in many cancer organisations nationally and internationally, including having served as President of Association of Radiation Oncologists of India, Indian Association of Hyperthermia in Medicine, and Federation of Asian Organisations for Radiation Oncology.

Dr. Rajendran B
Radiation Oncologist
- Dr. Rajendran B is a radiation oncologist with 28+ years of experience.
- He is a first Oncologist to do Radiosurgery in Northern Malaysia and certificate of Merit as Best Doctor of Dept of Radiation Oncology.
- He is a member of Malaysian Oncological Society, Association of Radiation Oncologists of India and Malaysian Medical Association.
- He has completed MBBS from Karnataka Medical College; DMRT from Bangalore Medical College and Research Institute and MD from Kasturba Medical College, 1995.
- Dr. Rajendran has also attended many National & International Conferences.
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- Dr. Rajendran B is a radiation oncologist with 28+ years of experience.
- He is a first Oncologist to do Radiosurgery in Northern Malaysia and certificate of Merit as Best Doctor of Dept of Radiation Oncology.
- He is a member of Malaysian Oncological Society, Association of Radiation Oncologists of India and Malaysian Medical Association.
- He has completed MBBS from Karnataka Medical College; DMRT from Bangalore Medical College and Research Institute and MD from Kasturba Medical College, 1995.
- Dr. Rajendran has also attended many National & International Conferences.

Dr. Sanjay Chandrasekar
Radiation Oncologist
- Dr. Sanjay Chandrasekar is a Radiation Oncologist with 26+ years of experience.
- He has received training in Cyberknife from USA and in radiation oncology from UK.
- He has completed MBBS from Madras University; Diploma in Medical Radiology & Electrology and MD from Madras Medical College.
- Dr. Chandrasekar is a member of Indian Medical Association, Cyberknife Society, Association of Radiation Oncologists of India and Indian Brachytherapy Society.
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- Dr. Sanjay Chandrasekar is a Radiation Oncologist with 26+ years of experience.
- He has received training in Cyberknife from USA and in radiation oncology from UK.
- He has completed MBBS from Madras University; Diploma in Medical Radiology & Electrology and MD from Madras Medical College.
- Dr. Chandrasekar is a member of Indian Medical Association, Cyberknife Society, Association of Radiation Oncologists of India and Indian Brachytherapy Society.

Dr. Rathna Devi
Radiation Oncologist
- Dr. Rathna Devi is a radiation oncologist with 23+ years of experience.
- She has bagged many accolades, including M. Jagadeesan Award and Young Radiation Oncology Award (Kerala).
- She is a member of European Society for Therapeutic Radiology and Oncology, Cyberknife Society, Association of Medical Physicist of India, Association of Radiation Oncologists of India, Indian Radiological and Imaging Association, Independent Medical Practitioners Association of India, Indian Society of Neuro Oncology and Indian Medical Association.
- Dr. Devi completed MBBS from MS Ramaiah Medical College and Diploma in Radio Therapy from Madras Medical College.
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- Dr. Rathna Devi is a radiation oncologist with 23+ years of experience.
- She has bagged many accolades, including M. Jagadeesan Award and Young Radiation Oncology Award (Kerala).
- She is a member of European Society for Therapeutic Radiology and Oncology, Cyberknife Society, Association of Medical Physicist of India, Association of Radiation Oncologists of India, Indian Radiological and Imaging Association, Independent Medical Practitioners Association of India, Indian Society of Neuro Oncology and Indian Medical Association.
- Dr. Devi completed MBBS from MS Ramaiah Medical College and Diploma in Radio Therapy from Madras Medical College.
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Dr. Mahadev P
Radiation Oncologist
- Dr. Mahadev P is a radiation oncologist with 25+ years of experience.
- He has played a major role in starting the Diplomate of National Board course in Radiotherapy in 2005.
- He completed MBBS from MGM Medical College, DMRT from Muthulakshmi College of Oncological Sciences, DNB from Madras University, MD from Muthulakshmi College of Oncological Sciences and UICC Fellowship from Peter MacCallum Cancer Centre.
- After getting trained in Australia, he started Prostate brachytherapy at Apollo Specialty Cancer Hospital.
- Dr. Mahadev is also trained in Cyberknife radiosurgery – the only system in the world to treat tumors in the body with sub-millimeter accuracy.
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- Dr. Mahadev P is a radiation oncologist with 25+ years of experience.
- He has played a major role in starting the Diplomate of National Board course in Radiotherapy in 2005.
- He completed MBBS from MGM Medical College, DMRT from Muthulakshmi College of Oncological Sciences, DNB from Madras University, MD from Muthulakshmi College of Oncological Sciences and UICC Fellowship from Peter MacCallum Cancer Centre.
- After getting trained in Australia, he started Prostate brachytherapy at Apollo Specialty Cancer Hospital.
- Dr. Mahadev is also trained in Cyberknife radiosurgery – the only system in the world to treat tumors in the body with sub-millimeter accuracy.

Dr.S. Gurumurthy
Radiation Oncologist
- Dr.S. Gurumurthy is a Radiation Oncologist, based in Chennai with 20+ years of experience.
- His area of expertise lies in Cancer Screening (Preventive), Proton Therapy, Brachytherapy (Internal Radiation Therapy), External Beam Radiation for Prostate Cancer, Radiation for Breast Cancer.
- Dr. Gurumurthy is a highly qualified medical practitioner, having obtained degrees like MBBS, DMRT, and FCIP from reputed institutions of the country. Later, he did MRSH from London.
- The distinguished Oncologist has achieved a number of awards throughout his career like Sir A.Lakshmana Mudaliar Award in Oncology, State First in Oncology in 2001 and Gold medal in Oncology.
- He is the first Person in south India, to treat Brain Tumours by Interstitial Brain Implant using High dose rate Brach therapy and is one of the few doctors in India to have done Implant brachytherapy from head to foot.
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- Dr.S. Gurumurthy is a Radiation Oncologist, based in Chennai with 20+ years of experience.
- His area of expertise lies in Cancer Screening (Preventive), Proton Therapy, Brachytherapy (Internal Radiation Therapy), External Beam Radiation for Prostate Cancer, Radiation for Breast Cancer.
- Dr. Gurumurthy is a highly qualified medical practitioner, having obtained degrees like MBBS, DMRT, and FCIP from reputed institutions of the country. Later, he did MRSH from London.
- The distinguished Oncologist has achieved a number of awards throughout his career like Sir A.Lakshmana Mudaliar Award in Oncology, State First in Oncology in 2001 and Gold medal in Oncology.
- He is the first Person in south India, to treat Brain Tumours by Interstitial Brain Implant using High dose rate Brach therapy and is one of the few doctors in India to have done Implant brachytherapy from head to foot.

Dr. Sapna Nangia
Radiation Oncologist
- Dr. Sapna Nangia is a leading, well-known Radiation Oncologist practicing for more than 33 years.
- She is well-trained in Breast Cancer Management, Stereotactic Body Radiotherapy, CNS Tumors Treatment, etc.
- She received her MBBS degree in 1986 followed by MD in Radiotherapy in 1994.
- She is professionally affiliated with Delhi Medical Council, Association of Radiation Oncologists of India (AROI), Head and Neck Oncology (FHNO), American Society for Therapeutic Oncology (ASTRO), European Society for Radiotherapy & Oncology (ESTRO), Association of Gynecologic Oncologists of India - AGOI, and Indian Society of Neuro-Oncology (ISNO).
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- Dr. Sapna Nangia is a leading, well-known Radiation Oncologist practicing for more than 33 years.
- She is well-trained in Breast Cancer Management, Stereotactic Body Radiotherapy, CNS Tumors Treatment, etc.
- She received her MBBS degree in 1986 followed by MD in Radiotherapy in 1994.
- She is professionally affiliated with Delhi Medical Council, Association of Radiation Oncologists of India (AROI), Head and Neck Oncology (FHNO), American Society for Therapeutic Oncology (ASTRO), European Society for Radiotherapy & Oncology (ESTRO), Association of Gynecologic Oncologists of India - AGOI, and Indian Society of Neuro-Oncology (ISNO).

Dr Ashwathy Susan Mathew
Radiation Oncologist
- Dr Ashwathy Susan Mathew is a leading, experienced Radiation Oncologist possessing more than 10 years of experience.
- She holds expertise in treating Gastrointestinal Cancer, Thoracic Cancer, and Breast Cancer.
- She is professionally affiliated with the Tamil Nadu Medical Council, Maharashtra Medical Council, Cochin Medical Council, American Society of Clinical Oncology, and European Society of Radiotherapy & Oncology.
- After receiving her MBBS degree, she pursued MD followed DNB in Radiation Oncology.
- She has also attained a clinical fellowship in Gastrointestinal & Lung SBRT.
- She has various papers and publications to her credit.
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- Dr Ashwathy Susan Mathew is a leading, experienced Radiation Oncologist possessing more than 10 years of experience.
- She holds expertise in treating Gastrointestinal Cancer, Thoracic Cancer, and Breast Cancer.
- She is professionally affiliated with the Tamil Nadu Medical Council, Maharashtra Medical Council, Cochin Medical Council, American Society of Clinical Oncology, and European Society of Radiotherapy & Oncology.
- After receiving her MBBS degree, she pursued MD followed DNB in Radiation Oncology.
- She has also attained a clinical fellowship in Gastrointestinal & Lung SBRT.
- She has various papers and publications to her credit.

Dr. Sridhar P S
Radiation OncologistDr. Sridhar P.S is a top radiation oncologist with 30 years of extensive experience in the radiological management of various cancers. He is skilled at advanced and precision radiation therapies such as IMRT, SRS, SBRT, SGRT, tomo therapy and chemoradiotherapy. He is one of India’s leading Cyberknife SBRT specialists. He is extremely knowledgeable in his field and Dr. Sridhar P.S.’s reviews describe him as being kind and efficient.
Why Choose Dr. Shridhar P. S.?
- Extensive Experience: Dr. Shridhar P. S. is an experienced radiation oncologist and has treated over 10,000 cancer patients in his career spanning 30 years.
- Best Radiation Oncology specialist: Dr. Shridhar P. S. is widely regarded as the best radiation oncology specialist in Chennai due to his expansive knowledge, precision radiation skill and compassionate nature.
- Advanced Cancer Treatment Specialist: He excels at providing advanced and precise cancer radiation treatments such as Intensity-Modulated Radiotherapy (IMRT), Stereotactic Body Radiotherapy (SBRT), and Surface-Guided Radiation Therapy (SGRT) tomo therapy, chemoradiotherapy and Cyberknife SBRT.
- Cyberknife SBRT specialist: He is one of India’s leading Cyberknife specialists and has treated over 3000 patients using the advanced cyberknife therapy.
- Committed Cancer Doctor: Dr. Shridhar P. S. is committed to fighting cancer and takes efforts to educate about early detection. He also keeps himself updated about the recent advances in cancer treatment to provide his patients the best shot at fighting cancer.
Appointment with Dr. Shridhar P. S. made possible through Vaidam
Dr. Shridhar P. S. is the best Radiation Oncologist in Chennai. Getting an appointment with a leading doctor in a premium hospital such as Dr. Shridhar P. S. at Apollo Proton Cancer Centre Chennai can be challenging. There is also confusion regarding the expense, duration and frequency of treatment, posing logistical challenges. This is where Vaidam helps patients in their cancer treatment journey.
Here are some ways in which Vaidam Health helps patients get treated under Dr. Shridhar P. S. at Apollo Proton Cancer Centre:
- Giving patients access to Dr. Shridhar P. S.’s contact number
- Arranging an appointment with Dr. Shridhar P. S.
- Giving an idea about Dr. Shridhar P. S.’s consultation fees and reviews
- Assisting International patients with their medical visa
- Travel and accommodation arrangements for patients and their attendants
Trust Vaidam to make your cancer journey smoother.
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Dr. Sridhar P.S is a top radiation oncologist with 30 years of extensive experience in the radiological management of various cancers. He is skilled at advanced and precision radiation therapies such as IMRT, SRS, SBRT, SGRT, tomo therapy and chemoradiotherapy. He is one of India’s leading Cyberknife SBRT specialists. He is extremely knowledgeable in his field and Dr. Sridhar P.S.’s reviews describe him as being kind and efficient.
Why Choose Dr. Shridhar P. S.?
- Extensive Experience: Dr. Shridhar P. S. is an experienced radiation oncologist and has treated over 10,000 cancer patients in his career spanning 30 years.
- Best Radiation Oncology specialist: Dr. Shridhar P. S. is widely regarded as the best radiation oncology specialist in Chennai due to his expansive knowledge, precision radiation skill and compassionate nature.
- Advanced Cancer Treatment Specialist: He excels at providing advanced and precise cancer radiation treatments such as Intensity-Modulated Radiotherapy (IMRT), Stereotactic Body Radiotherapy (SBRT), and Surface-Guided Radiation Therapy (SGRT) tomo therapy, chemoradiotherapy and Cyberknife SBRT.
- Cyberknife SBRT specialist: He is one of India’s leading Cyberknife specialists and has treated over 3000 patients using the advanced cyberknife therapy.
- Committed Cancer Doctor: Dr. Shridhar P. S. is committed to fighting cancer and takes efforts to educate about early detection. He also keeps himself updated about the recent advances in cancer treatment to provide his patients the best shot at fighting cancer.
Appointment with Dr. Shridhar P. S. made possible through Vaidam
Dr. Shridhar P. S. is the best Radiation Oncologist in Chennai. Getting an appointment with a leading doctor in a premium hospital such as Dr. Shridhar P. S. at Apollo Proton Cancer Centre Chennai can be challenging. There is also confusion regarding the expense, duration and frequency of treatment, posing logistical challenges. This is where Vaidam helps patients in their cancer treatment journey.
Here are some ways in which Vaidam Health helps patients get treated under Dr. Shridhar P. S. at Apollo Proton Cancer Centre:
- Giving patients access to Dr. Shridhar P. S.’s contact number
- Arranging an appointment with Dr. Shridhar P. S.
- Giving an idea about Dr. Shridhar P. S.’s consultation fees and reviews
- Assisting International patients with their medical visa
- Travel and accommodation arrangements for patients and their attendants
Trust Vaidam to make your cancer journey smoother.

Dr. Sumana Premkumar
Radiation Oncologist
- Currently associated as Senior Consultant with Department of Radiation Oncology at SIMS Hospitals, Chennai
- Holds vast experience in screening patients for breast or cervical cancers
- Monitoring the patients wider treatment with radiation/chemotherapy
- Planning the management after inter departmental discussions. Treatment planning after intradepartmental discussion and executing the same with extreme beam radiation (Cobalt, Photons & Electrons) and intracavitary application (high dose rate)
- Special Interests are Yoga (like Teaching Yoga Nidra to Cancer Patients directly or using Ipods), Reiki, Music Therapy, Rehabilitation of Survivors, Counseling them and their Familes, Management of the associated treatment Morbidities, Causes and Management of Lymphedema, Management of Stress, Benefits of Hypnotherapy, Knowledge about Breast Prostheses and Wigs.
- Member of various renowned organizations such as the Association of Radiation Oncologists of India, Indian Breast Group, and Indian Brachytherapy Society.
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- Currently associated as Senior Consultant with Department of Radiation Oncology at SIMS Hospitals, Chennai
- Holds vast experience in screening patients for breast or cervical cancers
- Monitoring the patients wider treatment with radiation/chemotherapy
- Planning the management after inter departmental discussions. Treatment planning after intradepartmental discussion and executing the same with extreme beam radiation (Cobalt, Photons & Electrons) and intracavitary application (high dose rate)
- Special Interests are Yoga (like Teaching Yoga Nidra to Cancer Patients directly or using Ipods), Reiki, Music Therapy, Rehabilitation of Survivors, Counseling them and their Familes, Management of the associated treatment Morbidities, Causes and Management of Lymphedema, Management of Stress, Benefits of Hypnotherapy, Knowledge about Breast Prostheses and Wigs.
- Member of various renowned organizations such as the Association of Radiation Oncologists of India, Indian Breast Group, and Indian Brachytherapy Society.

Dr. Francis G
Radiation Oncologist
- Dr. Francis G is an accomplished Radiologist with an experience of more than 22 years.
- In his career spanning over more than two decades, he has performed over 2, 00,000 CT scans and more than 5000 CT guided procedures.
- The doctor has acquired special acumen in scanning and processing techniques on the latest machines through his clinical eye and deeper understanding of the human body structure and working system.
- He takes interest in research and has several publications to his credit in national and international journals.
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- Dr. Francis G is an accomplished Radiologist with an experience of more than 22 years.
- In his career spanning over more than two decades, he has performed over 2, 00,000 CT scans and more than 5000 CT guided procedures.
- The doctor has acquired special acumen in scanning and processing techniques on the latest machines through his clinical eye and deeper understanding of the human body structure and working system.
- He takes interest in research and has several publications to his credit in national and international journals.

Dr. R Madan
Radiation Oncologist
- Dr. R Madan is a well-known Radiologist, practicing successfully for more than 18 years.
- In his career of 18 years, he has performed over 2, 00, 000 CT scans & MRI studies.
- With his clinical eye and expertise, he detects the abnormalities developed in different organs and parts of the body.
- He chiefly studies the problems developed in the Brain, Musculoskeletal system (bones, muscles, nerves & ligaments), Spine, Heart, Lungs, Stomach, Kidney and the Prostate gland as caught in the images through CT scan and MRI.
- His expert opinions help the doctors to find out the source of unexplained pain, discomfort due to stroke, cancer, nerve damage, and heart diseases etc.
- As an Interventional Radiologist, he often reaches particular organs through blood vessels and gets image guidance for biopsies and treatment without discomfort.
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- Dr. R Madan is a well-known Radiologist, practicing successfully for more than 18 years.
- In his career of 18 years, he has performed over 2, 00, 000 CT scans & MRI studies.
- With his clinical eye and expertise, he detects the abnormalities developed in different organs and parts of the body.
- He chiefly studies the problems developed in the Brain, Musculoskeletal system (bones, muscles, nerves & ligaments), Spine, Heart, Lungs, Stomach, Kidney and the Prostate gland as caught in the images through CT scan and MRI.
- His expert opinions help the doctors to find out the source of unexplained pain, discomfort due to stroke, cancer, nerve damage, and heart diseases etc.
- As an Interventional Radiologist, he often reaches particular organs through blood vessels and gets image guidance for biopsies and treatment without discomfort.
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