California’s New Clinical AI Laws Start January 1. A Solo Physician’s Office Is Covered. Here Is What Your Practice Must Change.
Executive Summary Governor Newsom signed AB 1979 (Chapter 854) and SB 503 (Chapter 857) on September 30, 2026. Both take effect January 1, 2027, and both expressly cover a physician’s office, defined as the office of a physician in solo practice. There is no size, revenue or patient volume threshold in either law. AB 1979…