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  2. National Provider Identifier - Wikipedia

    en.wikipedia.org/wiki/National_Provider_Identifier

    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 ...

  3. DEA number - Wikipedia

    en.wikipedia.org/wiki/DEA_number

    A valid DEA number consists of: 2 letters, 6 numbers, and 1 check digit; The first letter is a code identifying the type of registrant (see below) The second letter is the first letter of the registrant's last name, or "9" for registrants using a business address instead of name.

  4. How to Do a Free Reverse Phone Lookup & the 8 Best ... - AOL

    www.aol.com/finance/free-reverse-phone-lookup-8...

    Try a free reverse phone lookup site to find out who's calling. ... you can provide — by using the website’s filtering tools. 2. BeenVerified ... free reverse phone number lookup site that ...

  5. Preferred provider organization - Wikipedia

    en.wikipedia.org/wiki/Preferred_provider...

    In U.S. health insurance, a preferred provider organization (PPO), sometimes referred to as a participating provider organization or preferred provider option, is a managed care organization of medical doctors, hospitals, and other health care providers who have agreed with an insurer or a third-party administrator to provide health care at ...

  6. Identify any mystery caller for free with this phone number ...

    www.aol.com/news/identify-mystery-caller-free...

    Original article source: Identify any mystery caller for free with this phone number lookup tool. Show comments. Advertisement. Advertisement. In Other News. Entertainment. Entertainment. Variety.

  7. From PPO to HMO, what's the difference between the 5 most ...

    www.aol.com/news/ppo-hmo-whats-difference...

    PPO. The Preferred Provider Organization plan is the most popular for those with employment-based insurance (currently 47% of them, in fact). ... They also have a larger number of in-network ...

  8. North American Numbering Plan expansion - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering...

    The North American Numbering Plan is based on a ten-digit telephone number assigned to each telephone in the telephone network. The number is composed of the three-digit numbering plan area code, a three-digit central office code, and a four-digit station or line number. Certain rules govern the numerical format of each part.

  9. International mobile subscriber identity - Wikipedia

    en.wikipedia.org/wiki/International_Mobile...

    An IMSI is usually presented as a 15-digit number but can be shorter. For example, MTN South Africa's old IMSIs that are still in use in the market are 14 digits long. The first 3 digits represent the mobile country code (MCC), which is followed by the mobile network code (MNC), either 2-digit (European standard) or 3-digit (North American ...