; or (B) be employed full-time in providing pediatric medical subspecialty care, pediatric surgical specialty care, or child and adolescent mental and behavioral health care, including substance use disorder prevention and treatment services, in an area with— (i) a shortage of health care professionals practicing in the pediatric medical subspecialty, the pediatric surgical specialty, or child and adolescent mental and behavioral health, as applicable; and (ii) a sufficient pediatric population, as determined by the Secretary, to support the addition of a practitioner in the pediatric medical subspecialty, the pediatric surgical specialty, or child and adolescent mental and behavioral health, as applicable; and (2) the Secretary agrees to make payments on the principal and interest of undergraduate, graduate, or graduate medical education loans of the qualified health professional of not more than $35,000 a year for each year of agreed upon service under paragraph (1) for a period of not more than 3 years. (b) Eligibility requirements (1) Pediatric medical specialists and pediatric surgical specialists For purposes of loan repayment agreements under this section with respect to pediatric medical subspecialty and pediatric surgical specialty practitioners, the term qualified health professional means a licensed physician who— (A) is entering or receiving training in an accredited pediatric medical subspecialty or pediatric surgical subspecialty residency or fellowship