What is assigned to each provider to use for all claim submissions?

• A. National Provider Identifier (NPI)
• B. Clinical Provider Code
• C. Unique Provider Number
• D. Medicare Provider Number

Answer: (A)

Claim submissions rely on a single universal identifier that stays with a provider across all payers. The National Provider Identifier is a 10-digit unique ID assigned to individual clinicians and organizations by the national NPPES under CMS. It is the standard identifier used in all HIPAA electronic transactions, including submitting claims, checking eligibility, and processing payment, ensuring the provider is identified consistently regardless of the payer or setting. This makes it the required identifier for all claim submissions and avoids reliance on state licenses, clinic codes, or payer-specific numbers. Other identifiers like a clinical provider code or a unique provider number are not standardized across the system, and a Medicare provider number is only used for Medicare-related claims, not for all payers.