DR. DAVID ALFRED HORNER PH.D
NPI 1942281993
Psychologist in Santa Ana, CA

NPI Status: Active since November 08, 2005

Contact Information

405 W 5TH ST
#410
SANTA ANA, CA
ZIP 92701
Phone: (714) 834-6232
Fax: (714) 796-0194

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  • Individual
  • Male
  • Psychologist

About DAVID HORNER

This page provides the complete NPI Profile along with additional information for David Horner, a provider established in Santa Ana, California with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1942281993 assigned on November 2005. The practitioner's primary taxonomy code is 103T00000X with license number PSY9270 (CA). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1942281993
Provider Name
DR. DAVID ALFRED HORNER PH.D
Gender
Male
Entity Type
Individual
Location Address
405 W 5TH ST #410 SANTA ANA, CA 92701
Location Phone
(714) 834-6232
Location Fax
(714) 796-0194
Mailing Address
405 W 5TH ST #410 SANTA ANA, CA 92701
Mailing Phone
(714) 834-6232
Mailing Fax
(714) 796-0194
Is Sole Proprietor?
Yes
Enumeration Date
11-08-2005
Last Update Date
08-17-2011
Code Navigator

A psychologist like David Horner 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

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
License No.
PSY9270
License State
CA
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.

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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 1942281993, we treat the final digit (3) 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 3).

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
9
Unchanged
Pos 3
4
Doubled → 8
Pos 4
2
Unchanged
Pos 5
2
Doubled → 4
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
9
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
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 2 → 4 1 → 2 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 8 + 2 + 4 + 8 + 2 + 9 + 1 + 8 + 24 = 77

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

The next multiple of ten after 77 is 80. The difference is the calculated check digit.

80 - 77 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1942281993.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Marriage & Family Therapist
405 W 5TH ST
SANTA ANA, CA 92701
Psychologist (Clinical)
405 W 5TH ST, STE 590
SANTA ANA, CA 92701
Social Worker (Clinical)
405 W 5TH ST, STE# 590
SANTA ANA, CA 92701
Social Worker (Clinical)
405 W 5TH ST, STE 550
SANTA ANA, CA 92701
Psychiatry & Neurology (Psychiatry)
405 W 5TH ST, STE. 525
SANTA ANA, CA 92701
Psychologist (Clinical)
405 W 5TH ST, SUITE 590
SANTA ANA, CA 92701
Social Worker (Clinical)
405 W 5TH ST, SUITE 521
SANTA ANA, CA 92701
Social Worker (Clinical)
405 W 5TH ST
SANTA ANA, CA 92701
Technician
405 W 5TH ST
SANTA ANA, CA 92701
Social Worker (Clinical)
405 W 5TH ST, 550
SANTA ANA, CA 92701
Psychologist (Clinical)
405 W 5TH ST, STE 590
SANTA ANA, CA 92701
Psychologist
405 W 5TH ST, SUITE 212
SANTA ANA, CA 92701
Psychologist (Clinical)
405 W 5TH ST, 202A
SANTA ANA, CA 92701
Psychologist (Clinical)
405 W 5TH ST, SUITE 400
SANTA ANA, CA 92701
Counselor (Mental Health)
405 W 5TH ST, SUITE 590
SANTA ANA, CA 92701
Internal Medicine (Addiction Medicine)
405 W 5TH ST, SUITE 212
SANTA ANA, CA 92701
Counselor (Mental Health)
405 W 5TH ST, SUITE 590
SANTA ANA, CA 92701
Social Worker (Clinical)
405 W 5TH ST, SUITE 212
SANTA ANA, CA 92701
Licensed Psychiatric Technician
405 W 5TH ST, STE 550
SANTA ANA, CA 92701
Counselor (Professional)
405 W 5TH ST, STE. 212
SANTA ANA, CA 92701

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1942281993, enumerated as an "individual" on November 08, 2005.

The provider is located at 405 W 5TH ST #410 SANTA ANA, CA 92701 and the phone number is (714) 834-6232.

Psychologist with taxonomy code 103T00000X.