You may report allegations to the NIH Office of Management Assessment (OMA) at the following address:
Director, Office of Management Assessment
National Institutes of Health
Building 31, Room 1B-05
31 Center Drive MSC 2075
Bethesda, MD 20892-2075
Phone: (301) 496-1873 or (301) 496-5586
The informal complaint period of 30 days can be extended up to 90 days, if you elect to use alternative dispute resolution (ADR).