CHRISTOPHER ARRILLAGA, PSYD
NPI 1558292284
Psychologist in Austin, TX
NPI Status: Active since May 29, 2026
Contact Information
4310 MEDICAL PKWY STE 101
AUSTIN, TX
ZIP 78756
Phone: (510) 926-6767
Fax: (512) 631-1523
This NPI profile has been added to the NPI registry within the last 30 days.
- Organization
- Psychologist
About CHRISTOPHER ARRILLAGA, PSYD
This page provides the complete NPI Profile along with additional information for Christopher Arrillaga, Psyd, a provider established in Austin, Texas operating as a Psychologist. The healthcare provider is registered in the NPI registry with number 1558292284 assigned on May 2026. The practitioner's primary taxonomy code is 103T00000X. The provider is registered as an organization and their NPI record was last updated May 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Christopher Arrillaga Psyd (Psychologist)
- NPI
- 1558292284
- Provider Name
- CHRISTOPHER ARRILLAGA, PSYD
- Entity Type
- Organization
- Location Address
- 4310 MEDICAL PKWY STE 101 AUSTIN, TX 78756
- Location Phone
- (510) 926-6767
- Location Fax
- (512) 631-1523
- Mailing Address
- 4310 MEDICAL PKWY STE 101 AUSTIN, TX 78756
- Mailing Phone
- (510) 926-6767
- Mailing Fax
- (512) 631-1523
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 05-29-2026
- Last Update Date
- 05-29-2026
- Code Navigator
A psychologist like Christopher Arrillaga, Psyd studies cognitive, emotional, social processes and behavior by observing, interpreting, and recording how people relate to one another and to their environments. Psychologists gather information and evaluate behavior through controlled laboratory experiments, psychoanalysis, psychotherapy or through personality, performance, aptitude, or intelligence tests, and use this information when testing theories in their research or when treating patients.
Location Map
Secondary Locations
- 3468 Mt Diablo Blvd Ste B201
Lafayette, CA 94549
(501) 926-6767
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
- Taxonomy Code
- 103T00000X
- Type
- Behavioral Health & Social Service Providers
- Taxonomy Description
- A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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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 1558292284, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 66 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 6 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1558292284, enumerated as an "organization" on May 29, 2026.
The provider is located at 4310 MEDICAL PKWY STE 101 AUSTIN, TX 78756 and the phone number is (510) 926-6767.
Psychologist with taxonomy code 103T00000X.
