Dr. John Speraξis a bilingual, board certified radiation oncologist who serves as Chief of Radiation Oncology at Danbury and New Milford Hospitals. He has a general practice with special interests in stereotactic radiotherapy, cancers of the head and neck, breast and prostate. Dr. Spera believes cancer care should be delivered with technological excellence. A native of Stamford, Connecticut, he enjoys spending time with his patients in a friendly environment and to identify a personalξcare plan to best meet your needs.