TAMMAR WILLIAMS
NPI 1093682148
Counselor in Lawton, OK

NPI Status: Active since October 22, 2025

Contact Information

1719 SW 11TH ST
LAWTON, OK
ZIP 73501
Phone: (580) 581-1818

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  • Individual
  • Female
  • Counselor

About TAMMAR WILLIAMS

This page provides the complete NPI Profile along with additional information for Tammar Williams, a provider established in Lawton, Oklahoma with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1093682148 assigned on October 2025. The practitioner's primary taxonomy code is 101Y00000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1093682148
Provider Name
TAMMAR WILLIAMS
Gender
Female
Entity Type
Individual
Location Address
1719 SW 11TH ST LAWTON, OK 73501
Location Phone
(580) 581-1818
Mailing Address
PO BOX 662 PURCELL, OK 73080
Is Sole Proprietor?
No
Enumeration Date
10-22-2025
Last Update Date
10-22-2025
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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

Taxonomy Code
101Y00000X
Type
Behavioral Health & Social Service Providers
License State
OK
Taxonomy Description
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

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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 1093682148, 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 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
0
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
3
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
8
Unchanged
Pos 7
2
Doubled → 4
Pos 8
1
Unchanged
Pos 9
4
Doubled → 8
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 9 → 18 → 9 6 → 12 → 3 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 8 + 3 + 1 + 2 + 8 + 4 + 1 + 8 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1093682148.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Addiction (Substance Use Disorder))
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Marriage & Family Therapist
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Mental Health)
1719 SW 11TH ST
LAWTON, OK 73501
Case Manager/Care Coordinator
1719 SW 11TH ST
LAWTON, OK 73501
Rehabilitation Counselor
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Addiction (Substance Use Disorder))
1719 SW 11TH ST
LAWTON, OK 73501
Rehabilitation Counselor
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Professional)
1719 SW 11TH ST
LAWTON, OK 73501
Marriage & Family Therapist
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Professional)
1719 SW 11TH ST
LAWTON, OK 73501
Counselor (Addiction (Substance Use Disorder))
1719 SW 11TH ST
LAWTON, OK 73501
Marriage & Family Therapist
1719 SW 11TH ST
LAWTON, OK 73501
Case Manager/Care Coordinator
1719 SW 11TH ST
LAWTON, OK 73501

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093682148, enumerated as an "individual" on October 22, 2025.

The provider is located at 1719 SW 11TH ST LAWTON, OK 73501 and the phone number is (580) 581-1818.

Counselor with taxonomy code 101Y00000X.