Clif has a diverse background as a public servant  entrepreneur and health executive He served in senior health positions under Presidents Nixon  Ford  Carter  and Clinton In the 1970’s and 80’s  as Associate Administrator of HCFA (now CMS)  he directed the development of a broad range of innovations in health care financing and delivery  including the DRG hospital payment system  RBRVS physician payment system  Medicare Hospice Programs and Medicare payment of Physician Assistants