Family medicine doctor or Internist 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.

An oncologist is a medical professional who has the education and training necessary to diagnose and treat various type of cancers. Oncologists practice in hospitals and medical centers, university hospitals, and research organizations. In addition to diagnosing and treating tumors and cancer, they conduct research to learn more about cancer and how it acts in the body to help develop new treatment options.

A neurologist is a medical professional who specializes in the study and treatment of disorders that affect the brain and nervous system. The nervous system controls and regulates activity and movement in the body. If the nervous system is not functioning properly, the body cannot function. It is the job of a neurologist to find and correct any problems in the nervous system.

Medical professionals who specialize in neuropsychiatry work to help patients who have mental illnesses that can be directly attributed to neurological disorders or problems. This field has grown in recent years as it has become clearer that many mental illnesses are the result of physical problems of the brain. It is a more specialized field than their neurology or psychiatry, and therefore, patients must seek out this specific type of care if their mental illness is related to a brain disorder.

A Gynecologist is a medical professional who has the education and training necessary to diagnose and treat illnesses and diseases that affect the female reproductive organs. Most modern gynecologists are also obstetricians. They can help with sexual dysfunction, infertility, STDs, and common infections and diseases.