Patients' Access to Treatments Act of 2012

Patients' Access to Treatments Act of 2012 - Amends the Public Health Service Act to prohibit a health plan offering group or individual health insurance that provides coverage for prescription drugs and uses a formulary or other tiered cost-sharing structure from imposing co-payment, coinsurance, or other cost-sharing requirements applicable to prescription drugs in a specialty drug tier that exceed the dollar amount of such requirements applicable to prescription drugs in a non-preferred brand drug tier.

Provides that if a formulary used by such a health plan contains more than one non-preferred brand drug tier, such prohibition shall be applied with respect to the non-preferred brand drug tier for which beneficiary cost-sharing is lowest.

Defines: (1) "non-preferred brand drug tier" as a category of drugs within a tier in such formulary for which beneficiary cost-sharing is greater than tiers for generic drugs or preferred brand drugs in the plan's formulary, that are prescription drugs, and that are not included within a specialty drug tier; and (2) "specialty drug tier" as a category of drugs within a tier in such formulary for which beneficiary cost-sharing is greater than tiers for generic drugs, preferred brand drugs, or non-preferred drugs in the plan's formulary and that are prescription drugs.