Medical assistants are entry-level medical professionals who assist doctors and nurses. To become a medical assistant, you need a certificate or diploma in the field that shows you have the knowledge and skills to perform your responsibilities. Bright Education Institute will prepare you to become a medical assistant in as little as seven months. Now is a good time to enter the field. The Bureau of Labor Statistics estimates a high growth rate for job openings in medical assisting, and you can join the field with a diploma in medical assisting.