Dr. Ansar Hassan MD (he/him) is a cardiothoracic surgeon in Portland, ME. For new and existing patients, please see recommendations on how to schedule an appointment with Dr. Hassan online. As a cardiothoracic surgeon, he may specialize in Heart Disease and Aortic Stenosis, in addition to other conditions. Dr. Hassan got his license to practice in North Carolina. If you want to see Dr. Hassan, please contact him to book an appointment. You can also see how he compares to other cardiothoracic surgeons in Portland or get matched to a doctor or specialist.