Dr. Rosner is an Associate Clinical Professor of Medicine, a practicing hospitalist, and an informaticist and digital health researcher at the UCSF Center for Clinical Informatics and Improvement Research. He holds affiliations at the UCSF Institute for Health Policy Studies, and the Bakar Computational Health Sciences Institute.

Dr. Rosner is a nationally recognized researcher and entrepreneur in digital health who combines industry experience with pragmatic study design. His research focuses on three main areas: 1> Feedback to physicians and health systems about their diagnostic performance (see GoodDx.org), and performance related to the implementation of digital health tools, 2. Composite measures for adherence to the 4Ms Framework for older adults (What Matters, Medication, Mentation, and Mobility) and its association with outcomes, and 3. The use of large language models (artificial intelligence) in the hospital setting.

Between 2008-2010, Dr. Rosner worked in health economics and outcomes research as a Medical Director at Archimedes, Inc., performing in silico clinical trials, publishing in the peer-reviewed literature, and influencing policy and clinical practice guidelines. Between 2011-2018, he was the founding Chief Medical Information Officer of a digital patient engagement company, where he created automated remote patient guidance and monitoring technologies, empowering healthcare providers to receive follow up on patient outcomes. In that capacity, he worked with C-suite health system leaders throughout the country, and top leadership at the Centers for Medicare & Medicaid Services. He was the lead author of CMS' Merit Based Incentive Payment System's Improvement Activity IA-BE-14, Engage Patients and Families to Guide Improvement in the System of Care. Dr. Rosner also led the Patient Engagement and Empowerment Reporting national consortium to move the industry towards quality metrics associated with engaging and empowering the patient.

Dr. Rosner serves as a digital health clinical advisor to several national digital health not-for-profit organizations, and continues to work in policy related to digital health with the FDA, the ONC, and CMS. He holds an MD and a PhD (Chemical Engineering) from the University of Minnesota and is Board Certified in both Internal Medicine and Clinical Informatics.