The National Provider Identifier (NPI) is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). The NPI is used for administrative and financial transactions within the healthcare industry.

#### Solution By Steps

***Step 1: Understanding the Question***

The question is asking for the NPI associated with healthcare providers located in area code 315. Area code 315 covers parts of central New York, including cities like Syracuse and Utica.

***Step 2: Finding the NPI***

To find the NPI for healthcare providers in area code 315, you would typically need to access the NPI registry maintained by CMS. This registry allows searching by provider name, NPI, or other identifiers. However, it does not directly associate NPIs with area codes.

***Step 3: Alternative Approach***

An alternative approach would be to search for healthcare providers in the 315 area code using a directory or search engine that includes their contact information and NPI. This could involve searching for clinics, hospitals, or individual providers in the specified area code.

#### Final Answer

The NPI for area code 315 cannot be directly provided as NPIs are assigned to individual healthcare providers, not geographical areas. To find specific NPIs, you would need to search for healthcare providers within that area code using the NPI registry or other healthcare directories.