After providing diagnoses, a doctor treats patients who are suffering from diseases and injuries. A doctor is also called a physician and is often referred to as either an M.D. (medical doctor) or D.O. (doctor of osteopathic medicine). M.D.s and D.O.s both use traditional treatment methods such as drugs and surgery, but D.O.s emphasize the body's musculoskeletal system, preventative medicine, and holistic patient care.
You must apply in person using Form DS-11 if at least one of the following is true: 1  You are applying for your first U.S. passport. 2  You are under age 16. 3  Your previous U.S. passport was issued when you were under age 16.  Your previous U.S. passport was lost, stolen, or 1  damaged. Your previous U.S. passport was issued more than 15 years  ago.
Diplomats, Government Officials, and Holders of Diplomatic Passports. Any applicant who carries a diplomatic passport, or who is traveling to the United States on official business on behalf of a foreign government, should apply for their visa directly with the Consular Section following the steps below.