Final answer:
The NPI number goes in box 24J of the CMS-1500 form if the provider is an individual or in box 32a if the provider is an organization. Accurate placement is crucial for proper claim processing.
Step-by-step explanation:
The NPI number should be placed in box 24J of the upper section if the rendering provider is a person, or in box 32a if the billing provider is an organization. The CMS-1500 form is used by healthcare providers to submit insurance claims. The NPI (National Provider Identifier) is a unique identification number for covered healthcare providers. It is important to accurately place the NPI number in the correct box, as this ensures that the claim is processed correctly and in a timely manner.