How to find Joseph Smith's NPI number as a dentist in Texas with an area code of 940?

The National Provider Identifier (NPI)

NPI is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). The NPI has replaced the unique physician identification number (UPIN) as the required identifier for Medicare services, and is used by other payers, including commercial healthcare insurers. The area code of a provider, such as 940, which relates to Texas, does not determine or provide sufficient information to ascertain a practitioner's NPI number.

Explanation:

NPI numbers are not publicly linked to phone numbers or area codes because they are specific to individuals or organizations for the purpose of tracking healthcare-related transactions. To find Joseph Smith's NPI number, one would generally need to use searchable databases created for such purposes, which would require more than just the knowledge of his location or profession. Short of contacting Joseph Smith directly or using tools like the NPI Registry, this question cannot be answered without additional information.