Otolaryngologists are more commonly called ENTs, which stands for ear, nose, and throat. ENTs are medical professionals that are trained to diagnose and treat diseases and illnesses that affect the ear, nose, throat, and related structures of the head and neck. They can treat serious diseases, such as cancer, or simple health problems, such as strep throat.

Geriatric medicine focuses on the health of elderly people. As they age, many people experience age-related health problems, such as fragile bones, skin problems, and issues with eyesight and hearing. Doctors who specialize in geriatric medicine can provide services and solutions for many of these problems. Not only do these physicians treat potential problems, but they also work with patients as they age to help them maintain health, mobility, and quality of life.

An internist or Internal Medicine doctor is someone who specializes in diagnosing and treating illnesses, diseases, and health problems. Most internists are also primary care doctors and treat patients on a regular basis. They can diagnose and treat common illnesses or more serious problems. Most people see an internist regularly. Those with chronic illnesses may do so on a monthly or even weekly basis. Internists are the most common types of doctors.