Medigap is Medicare Supplement Insurance that helps fill "gaps" in Original Medicare and is sold by private companies. Original Medicare pays for much, but not all, of the cost for covered health care services and supplies. A Medicare Supplement Insurance (Medigap) policy can help pay some of the remaining health care costs, like:

Part B is Medical Insurance and covers physicians services, outpatient care, test, and supplies. (see Medicare Part B)

The Medicare Program

Medicare is a health insurance program for:

• People age 65 or older.
• People under age 65 with certain disabilities.
• People with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a kidney transplant)

The Original Medicare Has Two Parts