How many years does it take to become a ER Physician?

To be an emergency physician, or ER doctor, a medical degree from an accredited medical school must be earned. The Doctor of Osteopathic Medicine degree (D.O.) (earned in USA), Doctor of Medicine degree (M.D.), or Bachelor of Medicine/Bachelor of Surgery (MBBS/MBChB) are all accepted medical degrees to become an ER doctor. After finishing medical school, you'll have to complete an emergency medicine residency and sit for board certification examinations. Best of luck!