DR. JOHN G. WILLIAMS M.D.
NPI 1437127107
Specialist in Charlottesville, VA

NPI Status: Active since March 09, 2006

Contact Information

195 RIVERBEND DRIVE
SUITE 2
CHARLOTTESVILLE, VA
ZIP 22911
Phone: (434) 293-5008
Fax: (434) 293-2004

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  • Individual
  • Male
  • Specialist

About JOHN WILLIAMS

This page provides the complete NPI Profile along with additional information for John Williams, a provider established in Charlottesville, Virginia with a medical specialization in Specialist. The healthcare provider is registered in the NPI registry with number 1437127107 assigned on March 2006. The practitioner's primary taxonomy code is 174400000X with license number 0101039803 (VA). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1437127107
Provider Name
DR. JOHN G. WILLIAMS M.D.
Gender
Male
Entity Type
Individual
Location Address
195 RIVERBEND DRIVE SUITE 2 CHARLOTTESVILLE, VA 22911
Location Phone
(434) 293-5008
Location Fax
(434) 293-2004
Mailing Address
195 RIVERBEND DRIVE SUITE 2 CHARLOTTESVILLE, VA 22911
Mailing Phone
(434) 293-5008
Mailing Fax
(434) 293-2004
Is Sole Proprietor?
No
Enumeration Date
03-09-2006
Last Update Date
02-03-2010
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
0101039803
License State
VA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1437127107, we treat the final digit (7) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
3
Doubled → 6
Pos 4
7
Unchanged
Pos 5
1
Doubled → 2
Pos 6
2
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
1
Unchanged
Pos 9
0
Doubled → 0
Check
7
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 3 → 6 1 → 2 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 6 + 7 + 2 + 2 + 1 + 4 + 1 + 0 + 24 = 53

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1437127107.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1437127107, enumerated as an "individual" on March 09, 2006.

The provider is located at 195 RIVERBEND DRIVE SUITE 2 CHARLOTTESVILLE, VA 22911 and the phone number is (434) 293-5008.

Specialist with taxonomy code 174400000X.