To require medicare supplemental insurance policies to meet standards relating to simplification, nonduplication, and minimum loss-ratios, and for other purposes.

Medigap Fraud and Abuse Prevention Act of 1990 - Amends title XVIII (Medicare) of the Social Security Act to penalize individuals who issue, sell, or renew Medicare supplemental policies which are in violation of this Act's standards or offer to sell a policy in a State that has not approved such policy. Requires that Medicare supplemental policy issuers: (1) cover a core group of basic...