; and (2) by inserting , $3,183,561,644 for the period beginning on January 20, 2024, and ending on September 30, 2024, $4,400,000,000 for fiscal year 2025, and $1,109,000,000 for the period beginning October 1, 2025, and ending December 31, 2025 before the semicolon at the end. (c) Extension for the National Health Service Corps Section 10503(b)(2) of the Patient Protection and Affordable Care Act ( 42 U.S.C. 254b–2(b)(2) ) is amended— (1) in subparagraph (H), by striking and at the end; (2) in subparagraph (I), by striking the period at the end and inserting ; and ; and (3) by adding at the end the following: (J) $255,726,028 for the period beginning on January 20, 2024, and ending on September 30, 2024, $350,000,000 for fiscal year 2025, and $88,219,178 for the period beginning October 1, 2025, and ending December 31, 2025. . (d) Government Accountability Office report (1) In general Not later than one year after the date of enactment of this Act, the Comptroller General of the United States shall submit to the Committee on Energy and Commerce of the House of Representatives and the Committee on Health, Education, Labor, and Pensions of the Senate a report assessing the effectiveness of the National Health Service Corps at attracting health care professionals to HPSAs, including by— (A) assessing the metrics used by the Health Resources and Services Administration in evaluating the program; (B) comparing the retention rates of NHSC participants in the HPSAs where they completed their period of obligated service to the retention rate of non-NHSC participants in the corresponding HPSAs; (C) comparing the retention rates of NHSC participants in the HPSAs where they completed their period of obligated service to the retention rates of NHSC participants in HPSAs other than those where they completed their period of obligated service; (D) identifying factors that influence a NHSC participant’s decision to practice in a HPSA other than the HPSA where they completed their period of obligated service