NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
|Start with the original NPI number, the last digit is the check digit and is not used in the calculation.|
|Step 1: Double the value of the alternate digits, beginning with the rightmost digit.|
|Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.|
|2 + 0 + 0 + 3 + 0 + 1 + 0 + 6 + 2 + 24 = 38|
|Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.|
|40 - 38 = 2||2|
The NPI number 1003010612 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.
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Frequently Asked Questions
What is Dr. Patrick Sprague DDS NPI number?
The NPI number assigned to this healthcare provider is 1003010612, enumerated in the NPI registry as an "individual" on June 14, 2007
Where is the provider located?
The provider is located at 4 Canaan St Luray, Va 22835 and the phone number is (540) 743-5132
What is the provider specialty code?
The provider's speciality is Dentist with taxonomy code 1223G0001X with a focus in General Practice
How do I update my NPI information?
This NPI record was last updated on June 14, 2007. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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