How Important Is It Really to Have a Website?

In the medical professional world, in your industry, how important is it really to have a website and is it 100% necessary to do so? Do I need to have one so that you can start handing out to people or can you just do your own direct bookings by having that relationship with that recruiting agency? If you were going to work with somebody right now and they're like, hey, man, I got something for you. You want to build credibility and trust. Even if you have a landing page, that's all you need is like literally landing page. The website is just only going to build more credibility because people tend towant to look things up.