Joseph Ross is a professor in the Department of Internal Medicine at the Yale School of Medicine and in the Department of Health Policy and Management at the Yale School of Public Health. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. J.S. Ross. Cell and Gene Therapies — Improving Access and Outcomes for Medicare and Medicaid Beneficiaries. N Engl J Med 2025;392:521-523.