Eligibility for a Medicare Prescription Drug Subsidy
Unless you are deemed eligible as explained in § 418.3105 and 42 CFR 423.773(c), you are eligible for a Medicare Part D prescription drug subsidy if you meet all of the following requirements:
(b) You are enrolled in a Medicare prescription drug plan or Medicare Advantage plan with prescription drug coverage. We can also determine your eligibility for a subsidy before you enroll in one of the above programs. However, as explained in § 418.3225(b), if we determine that you would be eligible for a subsidy before you have enrolled in a Medicare prescription drug plan or Medicare Advantage plan with prescription drug coverage, you must enroll in one of these plans to actually receive a subsidy.
(c) You reside in the United States as defined in § 418.3010.