MS. SONJA COLLETTE WILLIAMS LIC PROF COUNSELOR
NPI 1720180102
Counselor - Professional in St Louis, MO
NPI Status: Active since September 05, 2006
Contact Information
11005 ACTON DRIVE
ST LOUIS, MO
ZIP 63123
Phone: (314) 540-0545
Fax: (314) 892-8765
- Individual
- Female
- Counselor
- Professional
About SONJA WILLIAMS
This page provides the complete NPI Profile along with additional information for Sonja Williams, a provider established in St Louis, Missouri with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1720180102 assigned on September 2006. The practitioner's primary taxonomy code is 101YP2500X with license number 2003032184 (MO). The provider is registered as an individual and her NPI record was last updated 19 years ago.
- NPI
- 1720180102
- Provider Name
- MS. SONJA COLLETTE WILLIAMS LIC PROF COUNSELOR
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 11005 ACTON DRIVE ST LOUIS, MO 63123
- Location Phone
- (314) 540-0545
- Location Fax
- (314) 892-8765
- Mailing Address
- PO BOX 270005 ST LOUIS, MO 63127
- Mailing Phone
- (314) 540-0545
- Mailing Fax
- (314) 892-8765
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-05-2006
- Last Update Date
- 07-08-2007
- Code Navigator
Location Map
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
- License No.
- 2003032184
- License State
- MO
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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 1720180102, we treat the final digit (2) 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 48 is 50. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1720180102, enumerated as an "individual" on September 05, 2006.
The provider is located at 11005 ACTON DRIVE ST LOUIS, MO 63123 and the phone number is (314) 540-0545.
Counselor with taxonomy code 101YP2500X and a focus in Professional.
