In 2018, AB 2789, the mandatory provider e-prescribing law for California, was designed to coincide with the new Medicare EPCS (Electronic Prescribing of Controlled Substances) requirement that was to go live nationally at the start of 2022. AB 2789 goes live January 1, 2022 and extends the EPCS expectations from controlled substance to all prescriber and dispenser prescriptions with very few exemptions possible. The CMA posted a helpful article on this subject on October 5 (link provided below).