Federal · U.S. House · Subcommittee
Oversight and Investigations Subcommittee
MeetingsHearings, markups, and business meetings, most recent first.
Jun 252026
State Medicaid Program Integrity: Examining Fraud Risks and Oversight Deficiencies.Hearing2123 Rayburn House Office Building2:15 p.m.
Amir BassiriState Medicaid Director, New York State Department of HealthWitness Truth in TestimonyWitness StatementWitness Biography
Scott PartikaDirector, Ohio Department of MedicaidWitness StatementWitness Support DocumentWitness Truth in TestimonyWitness Biography
Tyler SadwithState Medicaid Director, California Department of Health Care ServicesWitness Truth in TestimonyWitness BiographyWitness Statement
John ConnollyTemporary Commissioner and State Medicaid Director, Minnesota Department of Human ServicesWitness StatementWitness Truth in TestimonyWitness Biography
May 202026
Corrosion, Collapse, and Clean-Up: Examining the Potomac Interceptor Collapse.Hearing2123 Rayburn House Office Building2:15 p.m.Rescheduled
Colonel Francis PeraCommander, Baltimore District · U.S. Army Corps of Engineers
Mr. Edward WenschhofActing Superintendent, Chesapeake & Ohio Canal National Historical Park · National Park ServiceWitness Support DocumentWitness StatementWitness BiographyWitness Truth in Testimony
Mr. David GadisCEO and General Manager · DC WaterWitness Support Document — HHRG-119-IF02-Wstate-GadisD-20260520-SD002.pdfWitness Support Document — HHRG-119-IF02-Wstate-GadisD-20260520-SD004.pdfWitness Support Document — HHRG-119-IF02-Wstate-GadisD-20260520-SD003.pdfWitness BiographyWitness StatementWitness Truth in Testimony
Mr. Tom NeltnerNational Director · Unleaded KidsWitness BiographyWitness StatementWitness Truth in Testimony
The Honorable Jessica KramerAssistant Administrator for the Office of Water · U.S. Environmental Protection AgencyWitness Truth in TestimonyWitness BiographyWitness Statement
Mar 172026
Protecting Patients and Safeguarding Taxpayer Dollars: The Role of CMS in Combatting Medicare and Medicaid FraudHearing2123 Rayburn House Office Building6:00 p.m.
Ms. Kimberly BrandtDeputy Administrator and Chief Operating Officer · U.S. Centers for Medicare and Medicaid ServicesWitness StatementWitness BiographyWitness Truth in TestimonyWitness Support Document
Feb 32026
Common Schemes, Real Harm: Examining Fraud in Medicare and MedicaidHearing2360 Rayburn House Office Building3:30 p.m.
Ms. Jessica Gay, CPC, AHFI, CFEVice President and Co-Founder · Integrity AdvantageWitness BiographyWitness StatementWitness Truth in TestimonyWitness Support Document — HHRG-119-IF02-Wstate-GayCPCAHFICFEJ-20260203-SD001.pdfWitness Support Document — HHRG-119-IF02-Wstate-GayCPCAHFICFEJ-20260203-SD002.pdf
Mr. Stephen NuckollsChief Executive Officer, Coastal Carolina Health Care, P.A. and Treasurer and former Board Chair · National Association of Accountable Care OrganizationsWitness Truth in TestimonyWitness StatementWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-NuckollsS-20260203-SD001.pdfWitness Support Document — HHRG-119-IF02-Wstate-NuckollsS-20260203-SD002.pdf
Ms. Jessica Tillipman, J.D.Government Contracts Advisory Council Distinguished Professorial Lecturer in Government Contracts Law, Practice & Policy · George Washington University Law SchoolWitness Support Document — HHRG-119-IF02-Wstate-TillipmanJDJ-20260203-SD002.pdfWitness Truth in TestimonyWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-TillipmanJDJ-20260203-SD001.pdfWitness Statement
Ms. Kaye Lynn Wootton, J.D.President · National Association of State Medicaid Fraud Control Units
Dec 172025
Examining Biosecurity at the Intersection of AI and BiologyHearing2123 Rayburn House Office Building3:15 p.m.
Matthew McKnightGeneral Manager, Ginkgo Biosecurity · Ginkgo BioworksWitness Truth in TestimonyWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-McKnightM-20251217-SD001.pdfWitness StatementWitness Support Document — HHRG-119-IF02-Wstate-McKnightM-20251217-SD002.pdf
Fiona HaversFormer Lead of the Centers for Disease Control and Prevention Respiratory Virus Hospitalization Surveillance Network TeamWitness StatementWitness Truth in TestimonyWitness Support Document — HHRG-119-IF02-Wstate-HaversF-20251217-SD001.pdfWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-HaversF-20251217-SD002.pdf
James DiggansVice President, Policy and Biosecurity · Twist Bioscience CorporationWitness StatementWitness Support Document — HHRG-119-IF02-Wstate-DiggansJ-20251217-SD001.pdfWitness Truth in TestimonyWitness Support Document — HHRG-119-IF02-Wstate-DiggansJ-20251217-SD002.pdf
Jassi PannuAssistant Professor, Department of Environmental Health and Engineering and Senior Scholar · Johns Hopkins Bloomberg School of Public Health and Johns Hopkins Center for Health SecurityWitness StatementWitness Support Document — HHRG-119-IF02-Wstate-PannuJ-20251217-SD001.pdfWitness Truth in TestimonyWitness Support Document — HHRG-119-IF02-Wstate-PannuJ-20251217-SD002.pdfWitness Support Document — HHRG-119-IF02-Wstate-PannuJ-20251217-SD003.pdf
Nov 182025
Innovation with Integrity: Examining the Risks and Benefits of AI ChatbotsHearing2123 Rayburn House Office Building7:00 p.m.
Dr. Marlynn Wei, MD, JDPsychiatrist, Psychotherapist, and AuthorWitness Truth in TestimonyWitness Support DocumentWitness Statement
Dr. John Torous, MD, MBIDirector of Digital Psychiatry, Department of Psychiatry, Beth Israel Deaconess Medical Center and Associate Professor of Psychiatry, Harvard MedicalWitness Truth in TestimonyWitness Support DocumentWitness Statement
Dr. Jennifer King, PhDPrivacy and Data Policy Fellow · Stanford Institute for Human-Centered Artificial IntelligenceWitness Truth in TestimonyWitness Support DocumentWitness Statement
Jul 222025
Ensuring Patient Safety: Oversight of the U.S. Organ Procurement and Transplant SystemHearing2123 Rayburn House Office Building2:15 p.m.
Dr. Maureen McBrideChief Executive Officer · United Network for Organ SharingWitness Support DocumentWitness StatementWitness BiographyWitness Truth in Testimony
Mr. Barry MassaChief Executive Officer · Network for HopeWitness Support DocumentWitness StatementWitness BiographyWitness Truth in Testimony
Dr. Raymond LynchChief, Organ Transplant Branch · Health Resources and Services Administration, U.S. Department of Health and Human ServicesWitness Support DocumentWitness StatementWitness BiographyWitness Truth in Testimony
Dr. Richard FormicaFormer President · Organ Procurement and Transplantation Network Board of DirectorsWitness Support Document — HHRG-119-IF02-Wstate-FormicaR-20250722-SD001.pdfWitness Support Document — HHRG-119-IF02-Wstate-FormicaR-20250722-SD002.pdfWitness BiographyWitness Truth in TestimonyWitness Statement
Dr. John MageePresident · Organ Procurement and Transplantation Network Board of DirectorsWitness Support DocumentWitness StatementWitness BiographyWitness Truth in Testimony
Jun 42025
Stopping Illegal Robocalls and Robotexts: Progress, Challenges, and Next StepsHearing2322 Rayburn House Office Building2:15 p.m.
Sarah LegginVice President of Regulatory Affairs · CTIA--The Wireless AssociationWitness BiographyWitness StatementWitness Truth in TestimonyWitness Support Document
Joshua BercuExecutive Director · ndustry Traceback Group, and Senior VP, USTelecom;Witness StatementWitness BiographyWitness Truth in TestimonyWitness Support Document
Stephen WaguespackPresident · Institute for Legal Reform and Senior Vice President, U.S. Chamber Federation, State and Local AdvocacyWitness Truth in TestimonyWitness BiographyWitness StatementWitness Support Document
Ben WintersDirector of AI and Data Privacy · Consumer Federation of AmericaWitness BiographyWitness StatementWitness Truth in Testimony
May 212025
Examining Ways to Enhance Our Domestic Critical Mineral Supply Chains.Hearing2123 Rayburn House Office Building2:00 p.m.
Ms. Abigail HunterExecutive Director · SAFE Center for Critical Mineral StrategyWitness StatementWitness Truth in TestimonyWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-HunterA-20250521-SD204.pdfWitness Support Document — HHRG-119-IF02-Wstate-HunterA-20250521-SD601.pdf
Ms. Katie SweeneyExecutive Vice President and Chief Operating Officer · National Mining AssociationWitness BiographyWitness Truth in TestimonyWitness StatementWitness Support Document — HHRG-119-IF02-Wstate-SweeneyK-20250521-SD205.pdfWitness Support Document — HHRG-119-IF02-Wstate-SweeneyK-20250521-SD804.pdf
Mr. Casey HammondPrincipal · Capitol Pillar LLCWitness StatementWitness BiographyWitness Truth in TestimonyWitness Support Document — HHRG-119-IF02-Wstate-HammondC-20250521-SD201.pdfWitness Support Document — HHRG-119-IF02-Wstate-HammondC-20250521-SD401.pdf
Mr. Alexander HerrgottPresident · Permitting InstituteWitness BiographyWitness Truth in TestimonyWitness StatementWitness Support Document — HHRG-119-IF02-Wstate-HerrgottA-20250521-SD333.pdfWitness Support Document — HHRG-119-IF02-Wstate-HerrgottA-20250521-SD202.pdf
Mr. David HowellDirector of Strategy · Battery Advocacy for Technology Transformation Coalition (BATT Coalition)Witness Truth in TestimonyWitness StatementWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-HowellD-20250521-SD203.pdfWitness Support Document — HHRG-119-IF02-Wstate-HowellD-20250521-SD801.pdf
Apr 12025
Aging Technology, Emerging Threats: Examining Cybersecurity Vulnerabilities in Legacy Medical DevicesHearing2322 Rayburn House Office Building2:30 p.m.
Mr. Greg GarciaExecutive Director · Healthcare Sector Coordinating Council Cybersecurity Working GroupWitness StatementWitness BiographyWitness Truth in Testimony
Mr. Erik DeckerVice President and Chief Information Security OfficerWitness Truth in TestimonyWitness BiographyWitness StatementWitness Support Document
Dr. Christian Dameff, MD, MS, FACEPEmergency Physician and Co-Director, Center for Healthcare Cybersecurity
Ms. Michelle JumpChief Executive OfficerWitness StatementWitness BiographyWitness Truth in Testimony
Dr. Kevin Fu, PhDProfessor, Department of Electrical and Computer Engineering, Khoury College of Computer Sciences,Witness Support DocumentWitness Truth in TestimonyWitness BiographyWitness Statement
Feb 262025
"Examining the Biden Administration's Energy and Environment Spending Push."Hearing2322 Rayburn House Office Building3:30 p.m.
Mr. Frank RuscoDirector, Natural Resources and Environment Team · U.S. Government Accountability OfficeWitness Truth in TestimonyWitness StatementWitness Biography
Mr. Jonathan BlackChief Advisor for Strategic Planning and Program Oversight · Office of Inspector General, U.S. Department of EnergyWitness StatementWitness Support Document — HHRG-119-IF02-Wstate-BlackJ-20250226-SD092.pdfWitness Truth in TestimonyWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-BlackJ-20250226-SD030.pdf
Ms. Nicole MurleyActing Inspector General · Office of Inspector General, U.S. Environmental Protection AgencyWitness Support Document — HHRG-119-IF02-Wstate-MurleyN-20250226-SD077.PDFWitness BiographyWitness StatementWitness Truth in TestimonyWitness Support Document — HHRG-119-IF02-Wstate-MurleyN-20250226-SD033.pdf
Mr. J. Alfredo GomezDirector, Natural Resources and Environment Team · U.S. Government Accountability OfficeWitness Truth in TestimonyWitness StatementWitness BiographyWitness Support Document — HHRG-119-IF02-Wstate-GomezJ-20250226-SD032.pdfWitness Support Document — HHRG-119-IF02-Wstate-GomezJ-20250226-SD023.PDF
