Answer:
Coverage and speciality.
Step-by-step explanation:
The are two components that people search when looking for a medical provider. One of them is the speciality, because they want to make sure that the provider is prepared to cover their health needs, otherwise would be useless. For example, acquiring a medical provider specialized in the brain, and you have cardiovascular problems.
The second component people look for is coverage (the measure of coverage on specific needs), because they want to be sure that the medical provider will cover all the range of their needs, not just a tiny part.
For all these reasons, medical providers should be grouped by coverage and speciality.