NATIONAL INTEREST WAIVER PETITIONS Aytes Memo on Adjudication of NIW I-140s for Physicians in MUAs (.pdf 1361 KB) A 1/23/07 Interoffice Memorandum from Michael Aytes, Associate Director, Domestic Operations, USCIS provides interim guidance for the adjudication of NIW petitions for physicians in medically underserved areas in light of ...