Yes, and this is one of the few places on this site where there's a real number to point at. A therapist in private practice put $1,000 into advertising with Metcalf Media and it produced 27 leads and 6 new clients — and in her work a client stays for years rather than for one appointment, which is the whole reason a practice can afford a cost per lead that would sink a trade.
What makes a practice hard to advertise is everything the creative can't do. There's no before-and-after photo, no finished job to film, no customer who will sit for a testimonial. The person on camera is the practitioner, and what they're selling is whether somebody feels safe calling.
So the build is deliberately small and controllable: a page per service and per town, a steady budget rather than a spike, and every inquiry answered privately inside sixty seconds. When the caseload fills, the spend gets switched off and switched back on when a slot opens, which almost no other business Metcalf Media works with ever has to plan for.