What the rules allow, state by state.

Each state sets its own rules for how physicians may advertise, usually in the medical practice act and the board’s regulations, and its medical board enforces them. The federal rules on patient privacy, testimonials, texts and referrals apply in every state on top of that; they are on the federal rules page.

This index is the first step toward a rules page for every state. It holds each board’s own website, its license lookup, whether osteopathic physicians answer to the same board, and, for 22 of the 51, the advertising provision we read on the state’s own legislative or rules site. Where a row says the rule is not yet recorded, we have not read it yet; it does not mean the state has none. The descriptions here are not legal advice.