Matthew Williams is named as a lobbyist on federal disclosure filings for 1 client through McKesson Corporation & Its Affiliate U.s. Oncology. The most recent filing naming them posted in October 2026. Issues reported include Health Issues, Medicare/Medicaid, Pharmacy and Manufacturing.
| Client | Registrant | Latest | Issues |
|---|---|---|---|
| MCKESSON CORPORATION & ITS AFFILIATE U.S. ONCOLOGY | MCKESSON CORPORATION & ITS AFFILIATE U.S. ONCOLOGY | Q3 2026 | Manufacturing, Medicare/Medicaid, Health Issues |
| Year | Clients | Registrants |
|---|---|---|
| 2026 | 1 | 1 |
| 2025 | 1 | 1 |
Pay is not disclosed for individual lobbyists. Filings do not confirm that records with the same name are one person, so this page may combine people who share the name Matthew Williams. See the Capitol Clarity rankings and method.