CHARLES L. HILLIARD PHD
NPI 1912475732
Psychologist - Clinical in Los Angeles, CA

NPI Status: Active since November 09, 2018

Contact Information

1731 E 120TH ST
LOS ANGELES, CA
ZIP 90059
Phone: (323) 563-4939
Fax: (323) 563-9333

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

Individual
Male
Psychologist
Clinical
CLIA Number: 05D1068523
CLIA Cert. Type: Other - UNIV BASED TESTING FACILI
CLIA Exp. Date: 05-13-2027

About CHARLES HILLIARD

This page provides the complete NPI Profile along with additional information for Charles Hilliard, a provider established in Los Angeles, California with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1912475732 assigned on November 2018. The practitioner's primary taxonomy code is 103TC0700X with license number PSY19508 (CA). The provider is registered as an individual and his NPI record was last updated 8 years ago.

NPI: 1912475732
Provider Name: CHARLES L. HILLIARD PHD
Gender: Male
Entity Type: Individual
Location Address: 1731 E 120TH ST LOS ANGELES, CA 90059
Location Phone: (323) 563-4939
Location Fax: (323) 563-9333
Mailing Address: 1731 E 120TH ST LOS ANGELES, CA 90059
Mailing Phone: (323) 563-4939
Mailing Fax: (323) 563-9333
Is Sole Proprietor?: Yes
Enumeration Date: 11-09-2018
Last Update Date: 11-13-2018
Code Navigator

A clinical psychologist like Charles Hilliard assesses, diagnoses, and treats mental, emotional, and behavioral disorders. Clinical psychologists help people deal with problems ranging from short-term personal issues to severe, chronic conditions. Clinical psychologists interview patients, give diagnostic tests, provide psychotherapy and design behavior modification programs to help patients.

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: Psychologist Clinical
Taxonomy Code: 103TC0700X
Type: Behavioral Health & Social Service Providers
License No.: PSY19508
License State: CA
Taxonomy Description: A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number: 05D1068523
Facility Type: Other - UNIV BASED TESTING FACILI
Certificate Effective Date: May 14, 2025
Certificate Expiration Date: May 13, 2027
Laboratory Director: DAVID MARTINS
Certificate Type: Certificate of Waiver
Certificate Type Description: This CLIA certificate is issued to Charles Hilliard to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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 1912475732, 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 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.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 2

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 6

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 1 → 2 4 → 8 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 2 + 2 + 8 + 7 + 1 + 0 + 7 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1912475732.