Which block on the CMS-1500 form indicates the identity of the healthcare facility?

Block 32 on the CMS-1500 form is designated for the identification of the healthcare facility where services were rendered, specifically containing the "Service Facility Location Information." This block allows the reporting of where the patient received care, which is essential for insurance providers to process claims appropriately and ensure that reimbursement is directed to the correct facility.

Block 31 pertains to the signature of the provider. Block 33 is typically used for the billing provider's information, while Block 33A provides the billing provider's NPI (National Provider Identifier). Hence, while these blocks are important for various aspects of billing and provider identification, they do not indicate the healthcare facility where services occurred, which is why Block 32 is the correct choice for this question.