The term Allied Health is used to identify a cluster of health professions, encompassing as many as 200 health careers (see list below). There are 5 million allied health care providers in the U.S., who work in more than 40 different professions and represent approximately 60% of all health care providers -- but this is just a drop in the bucket in terms of how many allied health care workers are needed to meet current and future healthcare needs in America.
Further explaining, that when you work in allied health, you are involved (directly or indirectly) with patient health, and you are regarded as an expert in your field. Some allied health professionals practice independently; others work as part of a health care team, providing continual evaluation and assessment of patient needs. They also play a major role in informing the attending clinician of the patient's progress and response to treatment.
You can read more about Allied Health Careers and find detailed information regarding all health related careers by visiting their website at www.explorehealthcareers.org.