Welcome to Greater Washington Oncology Associates

Greater Washington Oncology Associates was started in 1990 to provide the highest level of care in Hematology and Oncology in the greater Washington D.C. metro area. The group presently has five medical Hematologists Oncologists and support staff of Laboratory technicians, pharmacy technicians, phlebotomists, and Oncology Nurses. Our practice has six office locations in Washington D.C. as well as Suburban Maryland and serving patients in the whole geographical region.

Greater Washington Oncology strides to provide individualized attention to every patient and our physicians are widely experienced in clinical Oncology. All cancers are treated in our friendly outpatient setting. We also offer research participation to patients who desire the same and that can be done through multiple institutions including NIH, John's Hopkins and University of Maryland. We pride ourselves in early and thorough evaluation of each new patient and the ease of our doctors to be available to discuss issues with patient and their families on every visit.

Meet Our Doctors
  • Ram S. Trehan, M.D.Ram S. Trehan, M.D.
  • Daya S. Sharma, M.D.Daya S. Sharma, M.D.
For Patients

It is a pleasure to welcome you to our practice for your evaluation. We pride in our ability to see patients at early date and provide support to you and your family.

Client Testimonials
  • The Doctors and Nurses are so caring and concerned about how I feel. The clinic is usually filled with laughter and when you feel your worst…the staff is like a bright sunny day that makes you feel better.

    Bobby T
  • Smiles and warmth of the staff along with efficient service make my visits easy.

    Betty S
  • Doctors and medical staff are caring and helpful. Feel like all personnel have a stake in your treatment and progress.

    George V
Hospital Affiliations
  • holy-cross-hospital
  • suburban-hospital
  • washington-adventist-hospital
  • washington-hospital-center