For the purpose of obtaining adequate numbers of commissioned officers on active duty who are qualified (A) in the various health professions or (B) as a health professional with specific skills to assist in providing mental health care to members of the armed forces, the Secretary of each military department, under regulations prescribed by the Secretary of Defense, may establish and maintain a health professions scholarship and financial assistance program for his department.

Persons participating in the program shall be commissioned officers in reserve components of the armed forces. Members pursuing a course of study shall serve on active duty in pay grade O–1 with full pay and allowances of that grade for a period of 45 days during each year of participation in the program. Members pursuing specialized training shall serve on active duty in a pay grade commensurate with their educational level, as determined by appointment under section 12207 of this title, with full pay and allowances of that grade for a period of 14 days during each year of participation in the program. They shall be detailed as students at accredited civilian institutions, located in the United States or Puerto Rico, for the purpose of acquiring knowledge or training in a designated health profession. In addition, members of the program shall, under regulations prescribed by the Secretary of Defense, receive military and professional training and instruction.

If a member of the uniformed services selected to participate in the program as a medical student has prior active service in a pay grade and with years of service credited for pay that would entitle the member, if the member remained in the former grade, to a rate of basic pay in excess of the rate of basic pay for regular officers in the grade of second lieutenant or ensign, the member shall be paid basic pay based on the former grade and years of service credited for pay. The amount of such basic pay for the member shall be increased on January 1 of each year by the percentage by which basic pay is increased on average on that date for that year, and the member shall continue to receive basic pay based on the former grade and years of service until the date, whether occurring before or after the conclusion of such participation, on which the basic pay for the member in the member’s actual grade and years of service credited for pay exceeds the amount of basic pay to which the member is entitled based on the member’s former grade and years of service.

the amount of such stipend (as previously adjusted (if at all)), multiplied by

the overall percentage of the adjustment (if such adjustment is an increase) in the rates of basic pay for members of the uniformed services made effective for the fiscal year in which the school year ends.