Why Is Medigap Needed? 
Medigap Plans are needed because Medicare Part A & B alone will only cover up to about 80 % of the costs of the your healthcare . Medigap Plans -LRB- or Medicare Supplement Plans -RRB- are designed to cover what Original Medicare Part A & B does not such as coinsurance and deductibles . Medicare along with a good Medigap Plan is great health insurance coverage . 