NPI Number Validation Tool
NPI NUMBER 1487617718 IS VALID
The NPI number 1487617718 is valid and registered in the National Plan & Provider Enumeration System registry. The NPI is assigned to the following provider:
DR. RICHARD JAMES DINSDALE
Family Medicine
Business Address
840 E MCKELLIPS RD
SUITE101
MESA, AZ
ZIP 85203
Phone: (480) 834-7546
Fax: (480) 834-8001
NPI Validation Check Digit Calculation
The following table explains step by step the NPI validation process using the Luhn algorithm:
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 4 | 8 | 7 | 6 | 1 | 7 | 7 | 1 | 8 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 4 | 16 | 7 | 12 | 1 | 14 | 7 | 2 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 4 + 1 + 6 + 7 + 1 + 2 + 1 + 1 + 4 + 7 + 2 + 24 = 62 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 62 = 8 | 8 | ||||||||
The NPI number 1487617718 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.
