I have a sizable contingent of deaf and hard of hearing persons. I do not use an interpreter but sign directly. Perseverance, flexibility, ability to communicate well and work well with people. Medical license and MD degree 4. Many professional associations.
Doctors have it made.
On the contrary, they work long, hard hours. Paperwork and hours. There is some need for more doctors, although some say this will change in the future. Science, math, and a good liberal arts basis. Volunteer for local hospital or other health organizations.