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About Doctor:

Dr R Shreyas is the Radiation Oncologist at MCI Nellore. He has been contributing to the field of Radiation Oncology for over seven years. He was a rank holder from the University in MD Radiotherapy. He previously worked with Manipal University for the last four years and currently working as a Consultant in Radiation Oncology at Medicover Cancer Institute Nellore. He expertise in advanced External Beam Radiotherapy techniques, Brachytherapy treatments, Cancer Chemotherapy, and Palliative care & also been part of various National and International Clinical Trials & awarded in various National Conferences and workshops.


English, Kannada, Tulu, Malayalam, Telugu, Hindi

Specialized Area:

  • External Beam Radiation Therapy
  • Brachytherapy
  • Intracavitory, Interstitial, Intraluminal, Surface Mould
  • Cancer Screening
  • Palliative Care
  • Chemotherapy
  • Breast Cancer
  • Head and neck Cancers
  • Brain Tumors
  • Gyanecological Cancers
  • Pediatric Cancers
  • Gastrointestinal Cancers
  • Prostate Cancers
  • Soft Tissue Sarcomas

Past Experience:

  • Worked as Senior Resident at Kasturba Medical College Mangalore: Radiation Oncology.(2017-2019)
  • Worked as Assistant Professor at Kasturba Medical College Mangalore: Radiation Oncology.(2019-2021)
  • Working as Consultant at Medicover Cancer Institute Nellore : Radiation Oncology.(2021- to present)


  • Kamath, A., Rai, K.M., Shreyas, R. et al. Effect of domperidone, ondansetron, olanzapine-containing antiemetic regimen on QTC interval in patients with malignancy: a prospective, observational, single-group, assessor-blinded study. Sci Rep 11, 445 (2021).
  • Lobo D, Challapalli S, Banerjee S, Putha SK, Saxena PUP, Holla R, Shreyas R, Ramamoorthy R. Fabrication and development of a thorax phantom to evaluate 3D CRT treatment planning techniques for post-mastectomy chest wall radiotherapy. Phys Eng Sci Med. 2021 Mar 26. doi: 10.1007/s13246-021-00992-6. Epub ahead of print. PMID: 33770384
  • Kumar, P., Srinivas, C., Vadhiraja, B., Banerjee, S., Shreyas, R., Prakash Saxena, P., Ravichandran, R., & Lobo, D. (2020). Simultaneous measurement of in vivo and transit mid-plane doses with ionization chambers in gynecological malignancy patients undergoing three-dimensional conformal radiotherapy. Journal of Medical Physics, 45(2), 123-129.
  • Lobo, D., Banerjee, S., Srinivas, C., Ravichandran, R., Putha, S. K., Prakash Saxena, P. U., Reddy, S., & Sunny, J. (2020). Influence of air gap under bolus in the dosimetry of a clinical 6 mv photon beam. Journal of Medical Physics, 45(3), 175-181.
  • Recurrence Following Chemoradiation in Locally Advanced Head and Neck Carcinoma – An Institutional Experience. e-ISSN: 2279-0853, p-ISSN: 2279-0861.Volume 16, Issue 4 Ver. IV (April. 2017), PP 33-36
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