> ## Documentation Index
> Fetch the complete documentation index at: https://docs.worthai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Reverse NPI Lookup with POST Add Business

## NPI Reverse Lookup Using POST Add Business

### Getting Started

1. Confirm NPI lookup has been enabled by contacting your Customer Success representative.
2. Add NPI related name fields to payload.
3. POST

### NPI Reverse Lookup Payload Additions

In the body of the payload during an Add Business call, the following fields MUST be added for a reverse lookup:

* `npi_first_name` - the first name of the provider to be checked
* `npi_last_name` - the last name of the provider to be checked

These additional fields will prompt Worth systems to do a reverse lookup of the provider and associate their NPI info with their case.

<Note>For reverse lookup to find a match, the provider *must* match to a business registered within the NPI database.
If the provider is not associated with a business, no match will be found. If the business is not found, even with a valid provider, no match will be made.</Note>

## Example Add Business Payload with Lookup Fields:

```json theme={null}
{
    "external_id": "abc-123",
    "name": "Medical Office, LLC",
    "tin": "123456789",
    "address_line_1": "123 Testing Blvd",
    "address_city": "Townsville",
    "address_state": "IL",
    "address_postal_code": "12345",
    "npi_first_name": "Fessor",
    "npi_last_name": "Utanium"
}
```