A few questions might help narrow how you market it.
Are the therapies or services covered by a healthcare payer, ie Medicaid, Medicare or Commercial Insurance? if not, can you adjust your services so that they would be covered? This would mean identifying ICD-10 codes for conditions you treat and CPT to bill for the services. With this in place, you can then contract with a payer to become a part of their provider network and bill them for services. Doing so would open you up to referrals which could be paid for. You could then meet with local providers in their office or by putting on community education events to educate the provider community and potential patients about your services.