In order to provide health professionals to Indians, Indian tribes, tribal organizations, and urban Indian organizations, the Secretary, acting through the Service and in accordance with this section, shall make scholarship grants to Indians who are enrolled full or part time in appropriately accredited schools and pursuing courses of study in the health professions. Such scholarships shall be designated Indian Health Scholarships and shall be made in accordance with section
254l of title
42, except as provided in subsection (b) of this section.