Flag them as a prior-procedure patient in your notes immediately
This is the most important step. Open the contact record and add a note with everything you learned: where the prior procedure was done (if they shared it), approximately when, what their concern is (poor growth, hairline design, uneven results, want more coverage), and what technique was used if they know (FUE, FUT, strip). The doctor needs this context before the consultation — a repair case is evaluated very differently than a first-time candidate.