Practice
Mostly no. Advertising can produce inquiries for a therapist, but the economics are bad and the clients it brings are usually the wrong ones.
Start with cost. Therapy keywords are among the most expensive in any ad auction, because every practitioner and platform is bidding on the same few terms. You pay a high price per click for traffic that mostly bounces, and the few who do enquire are comparing you against ten other results on price and availability.
That is the deeper problem. Advertising interrupts a stranger who was not looking for you, which is fine for a product and wrong for therapy. A client does not pick a therapist on an impulse from an ad. They pick one they have a reason to trust, and an ad cannot supply the reason. The clients who do convert from ads tend to be the most price-sensitive and least committed, the ones who leave when something cheaper turns up. You can spend your way to a calendar full of the wrong clients.
A referral works the opposite way. The client arrives already trusting you, because someone they trust did the convincing. They start ready to work, they stay, and they send others. The cost is nothing. How to find clients for a private practice covers where those referrals come from, and whether you need to be on social media covers the organic version of the same mistake.
The practitioners with full practices are not better advertisers. They built a referral base around a clear niche, psychosomatic pain being the obvious one right now, so the clients arrive without an ad ever running. The full version of that argument is strategic planning for a therapy practice . Spend the ad budget on getting good at a problem worth referring instead.