HAROLD HOLDER BA PSYCH, BSW, MSW
NPI 1144987868
Social Worker - Clinical in Round Rock, TX

NPI Status: Active since November 17, 2021

Contact Information

2800 JOE DIMAGGIO BLVD UNIT 40
ROUND ROCK, TX
ZIP 78665
Phone: (585) 510-9625

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  • Individual
  • Male
  • Social Worker
  • Clinical

About HAROLD HOLDER

This page provides the complete NPI Profile along with additional information for Harold Holder, a provider established in Round Rock, Texas with a medical specialization in Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1144987868 assigned on November 2021. The practitioner's primary taxonomy code is 1041C0700X with license number 804426 (). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1144987868
Provider Name
HAROLD HOLDER BA PSYCH, BSW, MSW
Gender
Male
Entity Type
Individual
Location Address
2800 JOE DIMAGGIO BLVD UNIT 40 ROUND ROCK, TX 78665
Location Phone
(585) 510-9625
Mailing Address
703 GLENMOSE RD FAIRPORT, NY 14450
Mailing Phone
(158) 551-0962
Is Sole Proprietor?
No
Enumeration Date
11-17-2021
Last Update Date
12-05-2021
Code Navigator

A clinical social worker like Harold Holder is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.

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 Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
License No.
804426
Taxonomy Description
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1101YA0400XBehavioral Health & Social Service Providers

Counselor
Addiction (Substance Use Disorder)

21230609 (NY)

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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 1144987868, 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 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
1
Unchanged
Pos 3
4
Doubled → 8
Pos 4
4
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
8
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 4 → 8 9 → 18 → 9 7 → 14 → 5 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 8 + 4 + 1 + 8 + 8 + 1 + 4 + 8 + 1 + 2 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1144987868.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1144987868, enumerated as an "individual" on November 17, 2021.

The provider is located at 2800 JOE DIMAGGIO BLVD UNIT 40 ROUND ROCK, TX 78665 and the phone number is (585) 510-9625.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.