* Otolaryngologists are physicians commonly called E.N.T.s

Such a broad topic is medicine that if you are an aspiring doctor, you may need to choose which area of medicine you wish to specialize in. The area of a doctor抯 specialization will also help patients to choose who among these doctors can skillfully and knowingly help treat their illnesses.
Doctors or physicians are categorized based on various factors. It could be based on patient population or medical specialty.

Some of the physician specializations are:
* Family Medicine Primary Care physicians can administer to all ages of patients and give immediate basic care for common illnesses.
Internal Medicine Primary Care physicians or internists can provide primary medical care to patients and specialize further on other areas like endocrinology and gastroenterology. Compared to family practitioners, internists do not minister to children under 18 years old and have more training in hospitals.

* Cardiologists are Internal Medicine doctors whose training and knowledge is focused on heart and cardiovascular system抯 blood vessels. This field has a lot more sub specialties as per different areas of the field.

* Endocrinologists are skilled at treating the endocrine system. They are knowledgeable on conditions of glands which secrete hormones which regulate and control bodily functions. Diabetics are treated by Endocrinologists.

* Gastroenterologists are Internists who teat digestive system conditions.
Infectious Disease doctors may practice primary care internal medicine as they treat patients with infectious ailments like swine and bird flu, HIV/AIDS and other contagious diseases.

* Dermatologists are physicians who are specialized on treating skin problems. They usually are not on on-call schedules but can work only on specified clinic hours. They also receive high compensations.

* Surgeons may have general surgery training or choose further trainings in cardiac surgery, neurosurgery or orthopedic surgery. The training of surgeons are usually longer than other medical sub-specialties and primary care physicians.

* Ophthalmologists are physicians trained to treat eye disorders and can also perform eye surgery. If the vision correction cannot be dealt with by an optometrist then an ophthalmologist can.

* Obstetricians/Gynecologists or OB/Gyns are physicians who can help treat and deal with women抯 health. Pregnancy, reproductive organs surgery and abnormality repair are some of the medical conditions handled by Ob/Gyns.

* Otolaryngologists are physicians commonly called E.N.T.s. They are specialized in treating conditions of the ear, nose and throat. ENTs can have training on surgeries and clinic-based treatments. They can deal with allergies, sinus problems, cancers in the neck and head, etc.

* Pediatricians are physicians specialized in treating ailments of younger patients from infancy until age of 18. Primary health care of children like immunizations, baby check-ups, school physical checkups, common colds and coughs treatment and others are administered to be Pediatricians. There are also pediatric sub specialties for other fields of specializations.

* Psychiatrists are physicians who help treat mental illnesses and problems. They are concerned with the mental health and mental well-being of patients. They can work in an office or clinic or in hospitals or both but majority of psychiatrists prefer the office-setting practice. Psychiatrists can specialize or focus on a certain field such as Child or Adolescent psychiatry or addiction treatments.