Are there technologies that give advantages to large groups of doctors over small clinics or make it preferable to doctors to create large groups ? Large groups

Are there technologies that give advantages to large groups of doctors over small clinics or make it preferable to doctors to create large groups ? Large groups have access to a large pool of customers so they can offer different business models. Are there technologies that enable medical "self-service" or less dependance on doctors ? I think medicare has started a "fee for package" program(instead of paying for services, you pay for a complete treatment around a single medical event - let's say knee surgery + including all services - for a single fee). Are there technologies that can help such implementations ? Are there any technologies that can help places more receptive to medical change(like africa[1])? with time the experience gained there could be integrated in other places. How can you make medical tourism a more popular choice or better choice? if it would be popular , more insurance companies would offer it and would pressure the medical establishment for improvement.