First things first: the question really is whether an entity is going to do you any good at all. From a liability perspective, keep in mind that anything you do is your personal problem; putting your medical practice into a corporation won’t shield you from your own malpractice. But it could, for example, shield you from your employee’s malpractice, or your file clerk’s sexual harassment claim against a fellow doctor. And it may also shield you from your partner’s malpractice. So there are upsides.
Some states, like California (where I practice), restrict the use of certain entities by professionals. The term “professional” itself has some grey area. Typically, professionals required to have a certain education, training, and experience aren’t permitted to use an LLC for their business (in California). So lawyers, doctors, etc., will generally use a corporation, though certain professions, like lawyers, have other specific partnership entities available to them. Others, like real estate appraisers, are still permitted to use an LLC. There may also be tax reasons, as a professional, to put your business into an entity. There’s much to consider.