
Although as many as 48% of seniors were subject to some type of drug-coverage deficiency in 2006, only an estimated 4 million of the 22.5 million enrolled in Medicare drug plans were actually expected to hit the infamous donut hole. There could still be financial woes, however, for the 10.8 million Medicare beneficiaries who at least have the potential for out-of-pocket costs in the donut hole gap because they do not qualify for a subsidy, are not covered outside Part D, or did not pay for enhanced gap coverage.