Matthew N. Wilcoxson was appointed Interim Inspector General (IG) on June 26, 2026.
IG Wilcoxson brings nearly two decades of experience grounded in independence, objectivity, and integrity. IG Wilcoxson joined OIG in 2015 as the Special Advisor to the IG and has held several high-level leadership positions during his tenure. Most recently, IG Wilcoxson served as the Principal Deputy IG, leading OIG’s operational units -- Audit (AU), Inspections and Evaluations (IE), Investigations (IU), and the Medicaid Fraud Control Unit (MFCU) -- as well as all of OIG's support divisions.
Prior to serving as Principal Deputy Inspector General, Wilcoxson served as Deputy Inspector General for Operations and Deputy Inspector General for External Affairs. IG Wilcoxson was instrumental in OIG's strategic transformation by integrating the District-wide performance structure into the agency's processes and applying the Baldrige Performance Excellence Framework to improve OIG's operational performance, alignment, and results. IG Wilcoxson also stood up the framework for the OIG’s public relations and legislative affairs work and built strategic relationships with stakeholders in the Council of the District of Columbia (Council), the Office of the City Administrator, and the Executive Office of the Mayor (EOM) to strengthen OIG engagement in service to District residents.
Before joining the OIG, IG Wilcoxson gained wide-ranging oversight experience, including auditing Hurricane Katrina relief and recovery efforts, conducting investigations on behalf of the US Office of Special Counsel, and developing and delivering training and certification courses for the US Navy inspectors general community.
