Detailed Information. NPI Number 1356536031 has the âIndividualâ type of ownership and has been registered to the following primary business legal name (which is a provider name or healthcare organization name) â NILDA A GUERRA-CAVAZOS MD.Records indicate that the provider gender is âFemaleâ .he fax number associated with the mailing address of the provider being identified. This data element may contain the same information as ''Provider location address fax number''.