MS. TIFFANY ANN WILLIAMSON
NPI 1720123136
Counselor in Davis, CA

NPI Status: Active since February 21, 2007

Contact Information

2100 5TH ST
DAVIS, CA
ZIP 95616
Phone: (530) 747-3372
Fax: (530) 753-0398

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  • Individual
  • Female
  • Counselor

About TIFFANY WILLIAMSON

This page provides the complete NPI Profile along with additional information for Tiffany Williamson, a provider established in Davis, California with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1720123136 assigned on February 2007. The practitioner's primary taxonomy code is 101Y00000X. The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1720123136
Provider Name
MS. TIFFANY ANN WILLIAMSON
Gender
Female
Entity Type
Individual
Location Address
2100 5TH ST DAVIS, CA 95616
Location Phone
(530) 747-3372
Location Fax
(530) 753-0398
Mailing Address
2100 5TH ST DAVIS, CA 95616
Mailing Phone
(530) 747-3372
Mailing Fax
(530) 753-0398
Is Sole Proprietor?
Yes
Enumeration Date
02-21-2007
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

Taxonomy Code
101Y00000X
Type
Behavioral Health & Social Service Providers
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 1720123136, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
2
Unchanged
Pos 7
3
Doubled → 6
Pos 8
1
Unchanged
Pos 9
3
Doubled → 6
Check
6
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 2 → 4 1 → 2 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 2 + 2 + 6 + 1 + 6 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1720123136.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Social Worker
2100 5TH ST
DAVIS, CA 95616
Marriage & Family Therapist
2100 5TH ST
DAVIS, CA 95616
Social Worker
2100 5TH ST
DAVIS, CA 95616
Marriage & Family Therapist
2100 5TH ST
DAVIS, CA 95616
Marriage & Family Therapist
2100 5TH ST
DAVIS, CA 95616
Counselor (Mental Health)
2100 5TH ST
DAVIS, CA 95616
Counselor (Mental Health)
2100 5TH ST
DAVIS, CA 95616
Marriage & Family Therapist
2100 5TH ST
DAVIS, CA 95616
Registered Nurse (Psychiatric/Mental Health, Child & Adolescent)
2100 5TH ST
DAVIS, CA 95616
Counselor
2100 5TH ST
DAVIS, CA 95616
Counselor
2100 5TH ST
DAVIS, CA 95616
Counselor
2100 5TH ST
DAVIS, CA 95616
Counselor
2100 5TH ST
DAVIS, CA 95616
Counselor
2100 5TH ST
DAVIS, CA 95616
Counselor
2100 5TH ST
DAVIS, CA 95616
Counselor (Mental Health)
2100 5TH ST
DAVIS, CA 95616
Counselor (Mental Health)
2100 5TH ST
DAVIS, CA 95616
Rehabilitation Practitioner
2100 5TH ST
DAVIS, CA 95616

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720123136, enumerated as an "individual" on February 21, 2007.

The provider is located at 2100 5TH ST DAVIS, CA 95616 and the phone number is (530) 747-3372.

Counselor with taxonomy code 101Y00000X.