He is a member of the American Medical Directors Association (AMDA), a 5,000-member long-term care physician group and is a past president in 2003-2004. He served as a member of the CMS work-group to revise F-Tag 329: Unnecessary Drugs, chaired a joint national effort that created a long-term care medication toolkit for patient safety, and chaired a national work-group to create a Clinical Practice Guideline for Care Transitions in the Long-Term Care Continuum.
A special interest is Care Transitions. He serves on the National Board for the National Transitions of Care Coalition (NTOCC), has spoken nationally on this subject, and been a part of Care Transitions efforts for the American Medical Association, the Society for Hospital Medicine and the Center for Medicare and Medicaid Services among other entities.
He was Senior Medical Director for Quality for Lumetra, the Quality Improvement Organization for California until assuming the role of Chief Medical Officer of Long-Term Care for the California Prison Health Care Services in October 2008. From June 2011 until June 2013 he was Medical Director/Vice President of Medical Services at the Hebrew Home of Greater Washington. HHGW is a multi-level service provider for more than 1,000 elders located in Rockville, MD.
Dr. Lett now works on special projects regarding care transitions and nursing home quality subjects.