If you're about to turn 65, put your birthday party planning on hold: It's time to start shopping for insurance that will supplement your Medicare coverage.
Medigap, a type of health insurance coverage, fills out the areas where your Medicare policy falls short, including deductibles, copayments and coinsurance. Some of these policies cover extras, such as health-care expenses during travel abroad.
You would purchase Medigap to supplement Medicare A and B, which cover hospital and doctor's visits. Medigap plans are distinguished by letter (A, B, C, D, F, G, K, L, M and N) and each plan offers different benefits.