An answer will depend on lots of things. What the service is and the health support policies of where you are. Is this a critical service necessary for care, a useful service for diagnostics, or a service that while useful is not necessary (chiropractics). Is it one that will be funded by national, regional, or local health agencies or one the patient him or herself need to pay for? Does the service to be provided target a specific group (seniors, children, etc.) or is it something of potential utility for the population-at-large?
Answering those questions will help give you the focus you need for the market work you wish to do.