Mae Ceri yn bennaeth ar y Coleg Gwyddorau Dynol ac Iechyd ym Mhrifysgol Abertawe ac yn Athro Economeg Iechyd yng Nghanolfan Economeg Iechyd Abertawe.   Ef yw aelod y Brifysgol nad yw'n swyddog o Fwrdd Iechyd Prifysgol Abertawe Bro Morgannwg, ac mae wedi gwneud cyfraniad mawr at y gwaith o ddatblygu Rhaglen ARCH. Hefyd ef yw Cadeirydd presennol Cyngor Deoniaid Iechyd Cymru. Mae'n aelod o'r Tasglu Gweinidogol ar gyfer y Gweithlu Gofal Sylfaenol yng Nghymru. Bu'n eistedd ar y Panel a gomisiynwyd gan y Gweinidog Iechyd a Gwasanaethau Cymdeithasol i adolygu Gweithlu'r GIG yng Nghymru, a bu'n aelod o'r Panel a fu’n gyfrifol am gynnal yr Adolygiad o Fuddsoddi mewn Addysg i Weithwyr Iechyd Proffesiynol yng Nghymru yn 2015, ynghyd ag adolygiad Williams sydd wedi arwain at sefydlu Addysg a Gwella Iechyd Cymru. Bu hefyd yn cydarwain yr adolygiad o'r gwerthusiad o feddyginiaethau amddifad a thra amddifad yng Nghymru yn 2014.
Ceri is Head of the College of Human and Health Sciences at Swansea University and Professor of Health Economics at Swansea Centre for Health Economics. He is the University non-officer member of ABMU Health Board and been heavily involved in the development of the ARCH Programme and the current Chair of Council of Deans of Health Wales. He is a member of the Ministerial Taskforce on Primary Care Workforce in Wales. He sat on the Panel commissioned by the Minister of Health and Social Services to review the NHS Workforce in Wales and was a member of the Panel that undertook the Review of Health Professions Education Investment in Wales in 2015, along with the Williams review that has led to the establishment of Health Education and Improvement Wales. He was also co-lead of the Review of the appraisal of orphan and ultra-orphan medicines in Wales in 2014.