| Title | Administrator |
| Start Date | 2010-07-07 |
| End Date | 2011-12-02 |
| Is Current | no |
| Board member | yes |
| Executive | yes |
| Employee | no |
| Notes | On July 7, 2010, President Barack Obama appointed Berwick to serve as the Administrator of CMS through a recess appointment. On December 2, 2011, he resigned because of heavy Republican opposition to his appointment and his potential inability to win a confirmation vote. |