SanteMPI exposes several resources for searching patient information.
Basic searching will perform a name search, or if your SanteDB instance supports it, a FreeText search of indexed fields (identifiers or name, or address, etc.).
The SanteMPI PowerSearch interface allows you to more finely tune your search results. For example, if you wanted to search for all patients with a last name JOHNSTON who are MALE you would use the PowerSearch function.