SUSAN TUTTLE BLALOCK
NPI 1639645567
Social Worker - School in Columbus, OH

NPI Status: Active since October 18, 2018

Contact Information

691 S 5TH ST
COLUMBUS, OH
ZIP 43206
Phone: (644) 443-6155
Fax: (614) 444-1482

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Social Worker
School

About SUSAN BLALOCK

This page provides the complete NPI Profile along with additional information for Susan Blalock, a provider established in Columbus, Ohio with a medical specialization in Social Worker, focusing in school . The healthcare provider is registered in the NPI registry with number 1639645567 assigned on October 2018. The practitioner's primary taxonomy code is 1041S0200X with license number I090 (OH). The provider is registered as an individual and her NPI record was last updated 8 years ago.

NPI: 1639645567
Provider Name: SUSAN TUTTLE BLALOCK
Gender: Female
Entity Type: Individual
Location Address: 691 S 5TH ST COLUMBUS, OH 43206
Location Phone: (644) 443-6155
Location Fax: (614) 444-1482
Mailing Address: 691 S 5TH ST COLUMBUS, OH 43206
Mailing Phone: (614) 443-6155
Mailing Fax: (614) 444-1482
Is Sole Proprietor?: Yes
Enumeration Date: 10-18-2018
Last Update Date: 10-18-2018
Code Navigator

A school social worker like Susan Blalock works with teachers, parents, and school administrators to develop plans and strategies to improve students' academic performance and social development. Students are referred to school social workers to deal with problems like aggressive behavior, bullying, or frequent school absences.

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: Social Worker School
Taxonomy Code: 1041S0200X
Type: Behavioral Health & Social Service Providers
License No.: I090
License State: OH

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 1639645567, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

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 6 → 12 → 3 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 1 + 2 + 4 + 1 + 0 + 5 + 1 + 2 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1639645567.