Medicare is a federal health insurance program for individuals over 65  years of age , those with disabilities, or those with certain diseases like permanent kidney failure. In times of health emergencies, Medicare plans can provide a financial safety net  to people  by fully or partially covering their treatment costs.  But, there are several conditions individuals must fulfill  to be eligible for a Medicare plan.  Not knowing these can lead to financial setbacks during health emergencies. Things to know before choosing Medicare coverage Medicare has different  parts Medicare has various parts. Part A, also called Hospital Insurance, covers inpatient hospital stays, care received in nursing facilities, and home care services to some extent. Part B, or the Medical Insurance, covers all expenses related to routine doctor visits, outpatient care, medical supplies, and preventive services. Medicare   Part  A and Part B are called the Original Medicare.  Further, Part C is the Medicare  Advant age plan that offers an alternative to Original Medicare, while Part D is the prescription coverage that covers the cost of recommended treatment options. One can purchase Part A and B from the government, while Part C can be purchased directly from a private healthcare company. There is also the Medicare Supplemental Insurance or Medigap, which can be an add-on to the Original Medicare plan.