In the Matter of H-V-P-, Adopted Decision 2016-01 (AAO Feb. 9, 2016), the USCIS established as binding policy guidance on all USCIS employees that specialty care physicians are eligible for physician national interest waivers for service in an area designated by the Secretary of HHS as a HPSA and as a MUA/P.

Inadmissibility and Deportability By Secretary of State Determination
A determination by the Secretary of State that the admission or continued presence of an alien in the United States would or will have adverse foreign policy consequences may render the alien inadmissible or deportable.