The term 'physicians, for short' can be abbreviated in three ways: DOCS (4 letters), DRS (3 letters), and MDS (3 letters). The abbreviation DOCS stands for Doctor of Osteopathic Medicine, which is a type of medical doctor who practices a holistic approach to medicine. The abbreviation DRS stands for Doctor of Medicine, which is a type of medical doctor who practices traditional medicine. The abbreviation MDS stands for Medical Doctor, which is a general term for any type of doctor who practices medicine. All three abbreviations refer to physicians, or medical doctors, who are trained to diagnose and treat illnesses and injuries.