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A National Provider Identifier (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 ...
A unique physician identification number (UPIN) was a six-character alpha-numeric identifier used by Medicare to identify doctors in the United States.They were discontinued in June 2007 [1] and replaced by National Provider Identifier, or NPI numbers.
Area codes 903 and 430 are telephone area codes in the North American Numbering Plan (NANP) for the northeastern part of the U.S. state of Texas, including Kilgore, Texarkana, Tyler, and Sherman. The numbering plan area begins just north and east of the Dallas–Fort Worth metroplex , and extends to the Oklahoma, Arkansas, and Louisiana state ...
Area codes 214, 469, 972, and 945 are telephone area codes in the North American Numbering Plan (NANP) for Dallas, Texas and most of the eastern portion of the Dallas–Fort Worth metroplex The area codes are assigned in an overlay complex to a single numbering plan area that was the core of one of the original area codes of 1947, area code 214.
Numbering plan areas and area codes since May 2001 September 1997 [1] – May 2001 [2] July 1988 [3] – September 1997 [4] [5] October 1947 – July 1988 [6]. Massachusetts is divided into five distinct numbering plan areas (NPAs), which are served by nine area codes in the North American Numbering Plan (NANP), [7] organized as four overlay complexes and a single-area code NPA.
Area code 339 is an overlay complex code for the same service area, activated on May 2, 2001. [3] Since then, ten-digit dialing has been mandatory. [3] Some mobile telephone numbers assigned in the 1990s to rate centers in 781 and 339 kept the 617 area code just on those mobile lines after the split.
Area codes 813 and 656 are area codes in the North American Numbering Plan for the U.S. state of Florida in the city of Tampa, Florida, and its surrounding areas, such as Zephyrhills and Oldsmar. In 2022, due to exhaustion of central office prefixes, area code 656 was added to the service area forming an overlay complex .
Area codes 615 and 629 are area codes in Tennessee serving Nashville (Davidson County) and the 12 surrounding counties. 615 is the main area code, while 629 is an overlay covering the same area that began service in 2014. Murfreesboro, Franklin, Brentwood, Gallatin, Hendersonville, and Lebanon are other major cities in the 615/629 service ...