Dr. John Mascarenhas is a Internal Medicine,Oncologist and Hematologic Oncologist in Hell's Kitchen, New York and has an experience of 24 years in these fields. Dr. John Mascarenhas practices at Mount Sinai West in Hell's Kitchen, New York,The Mount Sinai Hospital in Madison, New York and Mount Sinai Hospital Hematology And Oncology in New York 10029, New York. He completed Fellowship from Mt Sinai School of Medicine Hospital in 2008,Residency from Rhode Island Hospital Brown University in 2005 and Medical School from New York Medical College in 2002. Some of the services provided by the doctor are: Head and neck cancer,Bone Marrow Evaluation,Secondary Malignancies,Oral Cancer Treatment and Thalassemia Minor etc.