COURTNEY LIU ARELIZ M.S.
NPI 1871076802
Behavior Analyst in Glendale, CA

NPI Status: Active since September 14, 2018

Contact Information

410 ARDEN AVE STE 201
GLENDALE, CA
ZIP 91203
Phone: (182) 752-5878
Fax: (888) 909-8741

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

Individual
Female
Behavior Analyst

About COURTNEY LIU ARELIZ

This page provides the complete NPI Profile along with additional information for Courtney Liu Areliz, a provider established in Glendale, California with a medical specialization in Behavior Analyst. The healthcare provider is registered in the NPI registry with number 1871076802 assigned on September 2018. The practitioner's primary taxonomy code is 103K00000X with license number 1-20-46317 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI: 1871076802
Provider Name: COURTNEY LIU ARELIZ M.S.
Other Name: COURTNEY LIU
Other Name Type: Professional Name (2)
Gender: Female
Entity Type: Individual
Location Address: 410 ARDEN AVE STE 201 GLENDALE, CA 91203
Location Phone: (182) 752-5878
Location Fax: (888) 909-8741
Mailing Address: 308 N MONTGOMERY ST OJAI, CA 93023
Mailing Phone: (818) 275-2587
Mailing Fax: (888) 909-8741
Is Sole Proprietor?: No
Enumeration Date: 09-14-2018
Last Update Date: 11-17-2021
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Location Map

Secondary Locations

308 N Montgomery St
Ojai, CA 93023
(818) 275-2587

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: Behavior Analyst
Taxonomy Code: 103K00000X
Type: Behavioral Health & Social Service Providers
License No.: 1-20-46317
License State: CA
Taxonomy Description: A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.

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 1871076802, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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 → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 0

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 7 → 14 → 5 0 → 0 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 0 + 7 + 1 + 2 + 8 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1871076802.