He was Chairman of Council and later President of the Royal College of General Practitioners and Chairman of the Trustees of the Nuffield Trust.
National Trust | National Trust for Places of Historic Interest or Natural Beauty | Wellcome Trust | National Trust for Historic Preservation | National Trust of Australia | Wellcome Trust Sanger Institute | The Prince's Trust | BBC Trust | Leverhulme Trust | Durrell Wildlife Conservation Trust | Devon Wildlife Trust | Moorfields Eye Hospital NHS Foundation Trust | Metropolitan Bank and Trust Company | William Morris, 1st Viscount Nuffield | The Royal Marsden NHS Foundation Trust | Terrence Higgins Trust | Saccharine Trust | Prince's Trust | Pilgrim Trust | Nuffield College, Oxford | NHS trust | New Zealand Historic Places Trust | National Book Trust | J. Paul Getty Trust | Trust law | Teenage Cancer Trust | Social Security Trust Fund | Russell Trust Association | Police Memorial Trust | Nuffield |
Don Detmer is a former trustee of the Nuffield Trust, a member of the Institute of Medicine as well as a lifetime Associate of the US National Academies, a fellow of AAAS, and the American Colleges of Medical Informatics, Sports Medicine, and Surgeons.