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

Dr. P. Rajkumar
Surgical Oncologist
- Dr. P. Rajkumar is a well-experienced Surgical Oncologist with 23+ years of experience.
- He holds expertise in Cancer Surgery/Screening, Parotid Surgery, Splenectomy, and more.
- After completing medical school in 1998, he pursued MS in General Surgery in 2002 followed by M.Ch. in Surgical Oncology in 2006.
- He is an active member of the Indian Medical Association.
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- Dr. P. Rajkumar is a well-experienced Surgical Oncologist with 23+ years of experience.
- He holds expertise in Cancer Surgery/Screening, Parotid Surgery, Splenectomy, and more.
- After completing medical school in 1998, he pursued MS in General Surgery in 2002 followed by M.Ch. in Surgical Oncology in 2006.
- He is an active member of the Indian Medical Association.

Dr Naveen H C
Surgical Oncologist
- Dr Naveen H C is a dynamic Head & Neck Surgical Oncologist practicing for more than 14 years.
- He is well-trained in treating Head & Neck Cancer.
- He was professionally affiliated with Western Australia and AMC in 2011.
- He has attained his MBBS degree followed by MS in ENT. Further, he pursued M.Ch. in Head & Neck Surgical Oncology.
- Later, he achieved fellowships in Head & Neck Oncology and Head & Neck Surgery.
- He has been honored with various awards and recognitions.
- He has papers and publications to his credit.
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- Dr Naveen H C is a dynamic Head & Neck Surgical Oncologist practicing for more than 14 years.
- He is well-trained in treating Head & Neck Cancer.
- He was professionally affiliated with Western Australia and AMC in 2011.
- He has attained his MBBS degree followed by MS in ENT. Further, he pursued M.Ch. in Head & Neck Surgical Oncology.
- Later, he achieved fellowships in Head & Neck Oncology and Head & Neck Surgery.
- He has been honored with various awards and recognitions.
- He has papers and publications to his credit.

- Dr. Vikas Mahajan is a practicing Surgical Oncologist with an experience of more than 24 years.
- He has also worked as a Professor and Head GI & Thoracic Oncology and Director for several years while working as a surgical oncologist.
- He is an esteemed member of the Indian Medical Association (IMA)
- He specializes in upper GI and hepato-biliary cancers, thoracic oncology, Breast and Ovarian, and pediatric surgical oncology.
- He also has various national journals to his credit.
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- Dr. Vikas Mahajan is a practicing Surgical Oncologist with an experience of more than 24 years.
- He has also worked as a Professor and Head GI & Thoracic Oncology and Director for several years while working as a surgical oncologist.
- He is an esteemed member of the Indian Medical Association (IMA)
- He specializes in upper GI and hepato-biliary cancers, thoracic oncology, Breast and Ovarian, and pediatric surgical oncology.
- He also has various national journals to his credit.

Dr. Thiruvengita Prasad G
Orthopaedic Oncosurgeon
- Dr. Thiruvengita Prasad G is a renowned Orthopedist.
- He has more than two decades of experience as an Orthopedic Surgeon.
- He has special interest in diagnosing and treating spinal injury, back pain, frozen shoulder, joint mobilization, and chronic pain treatment.
- He is an active member of the Tamil Nadu Medical Council and Medical Council of India.
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- Dr. Thiruvengita Prasad G is a renowned Orthopedist.
- He has more than two decades of experience as an Orthopedic Surgeon.
- He has special interest in diagnosing and treating spinal injury, back pain, frozen shoulder, joint mobilization, and chronic pain treatment.
- He is an active member of the Tamil Nadu Medical Council and Medical Council of India.
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Dr. Raja Sundaram
Surgical Oncologist
- Dr. Raja Sundaram is a renowned Surgical Oncologist with over 32 years of experience.
- He has successfully performed more than 18,000 cancer surgeries, including complex head and neck surgeries with microvascular reconstruction, as well as laparoscopic GI and gynecologic-on surgeries.
- He is primarily recognised for his expertise in complex thyroid surgeries.
- Additionally, he specialises in Breast Cancer Treatment, Head and Neck Tumor/Cancer Surgery, Stem Cell Transplantation, and Ewing's Sarcoma Treatment.
- He completed his MBBS at Madras University in 1992, MS in General Surgery at Tamil Nadu Dr. MGR University in 1997, and MCh in Surgical Oncology at the Cancer Institute, Adyar, in 2000.
- Dr. Sundaram established the Sundaram Cancer Centre in Chennai to provide comprehensive cancer treatment.
- He is an active member of several oncology societies, including IASO, ISO, AROI, ESMO, OGGSI, IMA, and ASI.
- He has published numerous articles in national and international journals.
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- Dr. Raja Sundaram is a renowned Surgical Oncologist with over 32 years of experience.
- He has successfully performed more than 18,000 cancer surgeries, including complex head and neck surgeries with microvascular reconstruction, as well as laparoscopic GI and gynecologic-on surgeries.
- He is primarily recognised for his expertise in complex thyroid surgeries.
- Additionally, he specialises in Breast Cancer Treatment, Head and Neck Tumor/Cancer Surgery, Stem Cell Transplantation, and Ewing's Sarcoma Treatment.
- He completed his MBBS at Madras University in 1992, MS in General Surgery at Tamil Nadu Dr. MGR University in 1997, and MCh in Surgical Oncology at the Cancer Institute, Adyar, in 2000.
- Dr. Sundaram established the Sundaram Cancer Centre in Chennai to provide comprehensive cancer treatment.
- He is an active member of several oncology societies, including IASO, ISO, AROI, ESMO, OGGSI, IMA, and ASI.
- He has published numerous articles in national and international journals.

- Dr. Ranjan Kumar Mohapatra is a renowned Medical Oncologist, with a thriving experience of more than 25 years.
- His area of interest is Haematol Oncology, Bone Marrow Transplant, and Solid Tumor.
- He is a professional member of the European Society of Medical Oncology (ESMO), Indian Society of Medical and Paediatric Oncology (ISMPO), and European Society for Blood and Marrow Transplantation (EBMT).
- To his credit, there are numerous research papers published in national as well as international medical journals.
- He has also attended several conferences and talks where he shared his research work. He authored several chapters in medical books.
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- Dr. Ranjan Kumar Mohapatra is a renowned Medical Oncologist, with a thriving experience of more than 25 years.
- His area of interest is Haematol Oncology, Bone Marrow Transplant, and Solid Tumor.
- He is a professional member of the European Society of Medical Oncology (ESMO), Indian Society of Medical and Paediatric Oncology (ISMPO), and European Society for Blood and Marrow Transplantation (EBMT).
- To his credit, there are numerous research papers published in national as well as international medical journals.
- He has also attended several conferences and talks where he shared his research work. He authored several chapters in medical books.

Dr. Gouthaman S
Surgical Oncologist
- Dr. Gouthaman S is a reputed and highly educated Surgical Oncologist with +16 years of experience.
- His professional affiliations include memberships of, the Indian Medical Association and the Indian Association of Surgical Oncology.
- Dr. Gouthaman S completed his MBBS from Sri Ramchandra Medical College and Research Institute in 2000, followed by MS in 2004 from Madras Medical College and obtained a DNB qualification. He is a member of the Royal College of Surgeons of Edinburgh. In 2011, he earned an M.Ch from Adyar Cancer Institute.
- During his practice, he has acquired expertise in performing, lumpectomy, robotic surgery and laparoscopic surgeries. He also performs surgeries for, gastro cancer, oral cancer, gynecological cancers, breast cancer, soft tissue and bone cancer, urological/head & neck/lung/pancreatic and liver cancers.
- He has co-authored a few research papers majorly for national journals and one international journal.
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- Dr. Gouthaman S is a reputed and highly educated Surgical Oncologist with +16 years of experience.
- His professional affiliations include memberships of, the Indian Medical Association and the Indian Association of Surgical Oncology.
- Dr. Gouthaman S completed his MBBS from Sri Ramchandra Medical College and Research Institute in 2000, followed by MS in 2004 from Madras Medical College and obtained a DNB qualification. He is a member of the Royal College of Surgeons of Edinburgh. In 2011, he earned an M.Ch from Adyar Cancer Institute.
- During his practice, he has acquired expertise in performing, lumpectomy, robotic surgery and laparoscopic surgeries. He also performs surgeries for, gastro cancer, oral cancer, gynecological cancers, breast cancer, soft tissue and bone cancer, urological/head & neck/lung/pancreatic and liver cancers.
- He has co-authored a few research papers majorly for national journals and one international journal.

Dr. S Ayyappan
Colorectal Surgeon
- Dr. S Ayyappan is a renowned Surgical Oncologist with experience of more than 18 years.
- He has expertise in breast and gynecology cancer, laparoscopic colorectal surgery, musculoskeletal tumors/limb salvage surgery, and gastrointestinal laparoscopy.
- He has a professional membership with the Association of Surgeons of India, the Indian Association of Surgical Oncologist, and Fellow of Association of Minimal Access Surgeons of India
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He also heads the DNB Surgical oncology education program at Apollo Hospitals and participates in several National and International Cancer Conferences.
- He has publications in national as well as in international journals.
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- Dr. S Ayyappan is a renowned Surgical Oncologist with experience of more than 18 years.
- He has expertise in breast and gynecology cancer, laparoscopic colorectal surgery, musculoskeletal tumors/limb salvage surgery, and gastrointestinal laparoscopy.
- He has a professional membership with the Association of Surgeons of India, the Indian Association of Surgical Oncologist, and Fellow of Association of Minimal Access Surgeons of India
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He also heads the DNB Surgical oncology education program at Apollo Hospitals and participates in several National and International Cancer Conferences.
- He has publications in national as well as in international journals.

Dr Rajesh Balasubramanian
Surgical Oncologist
- Dr Rajesh Balasubramanian is a leading Surgical Oncologist with +10 years of experience.
- He did his MBBS from in 1995 from Stanley Medical College, Chennai, followed by MS from Madras Medical College. For advanced training, he studied at west Middlesex University Hospital, London and earned his MRCS and FRCS from Royal college of Surgeon of Edinburgh.
- Dr. Balasubramanian then did two fellowships, one, the European Society of Surgical Oncology at Guy’s & St Thomas and the other by clearing the European Board Breast Surgery Exam.
- He is an expert at, surgeries for breast tumours and cancers including oncoplastic breast conservation procedures, skin- and nipple-sparing mastectomy, breast reconstruction, sentinel node biopsy and benign breast conditions.
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- Dr Rajesh Balasubramanian is a leading Surgical Oncologist with +10 years of experience.
- He did his MBBS from in 1995 from Stanley Medical College, Chennai, followed by MS from Madras Medical College. For advanced training, he studied at west Middlesex University Hospital, London and earned his MRCS and FRCS from Royal college of Surgeon of Edinburgh.
- Dr. Balasubramanian then did two fellowships, one, the European Society of Surgical Oncology at Guy’s & St Thomas and the other by clearing the European Board Breast Surgery Exam.
- He is an expert at, surgeries for breast tumours and cancers including oncoplastic breast conservation procedures, skin- and nipple-sparing mastectomy, breast reconstruction, sentinel node biopsy and benign breast conditions.

Dr. Mani C S
Surgical Oncologist
- Dr. Mani C S is a well-known Surgical Oncologist, with experience of more than 19 years.
- He has the expertise to perform Mohs Surgery, Ewing's Sarcoma Treatment, Cytology Guided by Ultrasound, and Stem Cell Transplantation.
- He has qualified FRCS as a Surgical Oncologist and also has a keen interest in head and neck cancer and speech rehabilitation, cancer research, healthcare technologies, cell behavior, and molecular biology.
- He is a member of the prestigious Indian Medical Association (IMA).
- Along with being a fluent English speaker, he is also affluent in Hindi and Tamil.
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- Dr. Mani C S is a well-known Surgical Oncologist, with experience of more than 19 years.
- He has the expertise to perform Mohs Surgery, Ewing's Sarcoma Treatment, Cytology Guided by Ultrasound, and Stem Cell Transplantation.
- He has qualified FRCS as a Surgical Oncologist and also has a keen interest in head and neck cancer and speech rehabilitation, cancer research, healthcare technologies, cell behavior, and molecular biology.
- He is a member of the prestigious Indian Medical Association (IMA).
- Along with being a fluent English speaker, he is also affluent in Hindi and Tamil.

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.
Show moreShow less
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.
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