Dr. Usman Sheikh is a senior medical oncologist with extensive experience working in a multidisciplinary oncology department at leading tertiary care hospitals. With advanced postgraduate training in medical oncology, he specializes in the diagnosis and treatment of a wide range of cancers, including breast, lung, and gastrointestinal malignancies. Dr. Sheikh has played a key role in developing oncology department protocols, integrating chemotherapy, immunotherapy, and supportive care services to improve patient outcomes. He is also actively involved in clinical research, medical education, and mentoring young doctors, contributing to the continuous advancement of oncology department standards and cancer care services.