; or (B) be a rate established by the Secretary, if the service is not covered under such program. (5) Clarification In selecting a rate under paragraph (1) or (2) for a health care service, the applicable State may select a rate that differs from the rate selected under such paragraph for a different health care service. (d) Definitions For purposes of this section: (1) Health care provider The term health care provider includes a hospital (as defined in section 1861(e) of the Social Security Act), a critical access hospital (as defined in section 1861(mm) of such Act), a physician (as defined in section 1861(r) of such Act), and other providers as determined by the Secretary. (2) Uninsured individual The term uninsured individual , with respect to an individual receiving a health care service, means an individual who, at the time at which the service was furnished, was not enrolled in a plan that provides medical care benefits, including any Federal health benefit program, as determined by the Secretary. . (b) Effective date Section 2729 of the Public Health Service Act, as added by subsection (a), shall take effect on January 1, 2020. 3. Grants for group market (a) In general The Secretary of Health and Human Services shall award grants to States for the purpose of studying the potential for imposing limitations on charges for health care services provided to individuals enrolled in group health plans or group health insurance coverage offered by a health insurance issuer that are similar to the limitations that apply under section 2729 of the Public Health Service Act, as added by section 2. (b) Authorization of appropriations There are authorized to be appropriated such sums as may be necessary to carry out this section. (c) Definitions In this section, the terms group health plan , group health insurance coverage , and health insurance issuer have the meanings given such terms in section 2791 of the Public Health Service Act ( 42 U.S.C. 300gg–91 ).