MR. GREGORY LAMAR WILLIAMS M.S.
NPI 1902000508
Counselor - Professional in Anniston, AL

NPI Status: Active since June 14, 2007

Contact Information

7 E 13TH ST
ANNISTON, AL
ZIP 36201
Phone: (256) 237-9200

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  • Individual
  • Male
  • Counselor
  • Professional

About GREGORY WILLIAMS

This page provides the complete NPI Profile along with additional information for Gregory Williams, a provider established in Anniston, Alabama with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1902000508 assigned on June 2007. The practitioner's primary taxonomy code is 101YP2500X. The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1902000508
Provider Name
MR. GREGORY LAMAR WILLIAMS M.S.
Gender
Male
Entity Type
Individual
Location Address
7 E 13TH ST ANNISTON, AL 36201
Location Phone
(256) 237-9200
Mailing Address
PO BOX 882 BYNUM, AL 36253
Mailing Phone
(586) 549-4165
Is Sole Proprietor?
Yes
Enumeration Date
06-14-2007
Last Update Date
07-08-2007
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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

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers

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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 1902000508, we treat the final digit (8) 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 42. The final step is to find the difference between that total and the next multiple of ten (50 - 42 = 8).

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
9
Unchanged
Pos 3
0
Doubled → 0
Pos 4
2
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
8
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 0 → 0 0 → 0 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 0 + 0 + 0 + 5 + 0 + 24 = 42

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

The next multiple of ten after 42 is 50. The difference is the calculated check digit.

50 - 42 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1902000508.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Social Worker (Clinical)
7 E 13TH ST, SUITE 227
ANNISTON, AL 36201
Counselor (Mental Health)
7 E 13TH ST, 227
ANNISTON, AL 36201
Community/Behavioral Health
7 E 13TH ST, SUITE 227
ANNISTON, AL 36201
Counselor
7 E 13TH ST, SUITE 227
ANNISTON, AL 36201
Counselor
7 E 13TH ST, SUITE 227
ANNISTON, AL 36201
Counselor (Professional)
7 E 13TH ST, SUITE- 227
ANNISTON, AL 36201

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1902000508, enumerated as an "individual" on June 14, 2007.

The provider is located at 7 E 13TH ST ANNISTON, AL 36201 and the phone number is (256) 237-9200.

Counselor with taxonomy code 101YP2500X and a focus in Professional.