DR. NICHOLAS HOYT ST. JOHN PH.D.
NPI 1508921321
Psychologist in Palo Alto, CA

NPI Status: Active since December 22, 2006

Contact Information

750 WELCH RD
SUITE 212
PALO ALTO, CA
ZIP 94304
Phone: (650) 724-2165
Fax: (650) 724-6500

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  • Individual
  • Male
  • Psychologist

About NICHOLAS ST. JOHN

This page provides the complete NPI Profile along with additional information for Nicholas St. John, a provider established in Palo Alto, California with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1508921321 assigned on December 2006. The practitioner's primary taxonomy code is 103T00000X with license number PSY#19784 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1508921321
Provider Name
DR. NICHOLAS HOYT ST. JOHN PH.D.
Gender
Male
Entity Type
Individual
Location Address
750 WELCH RD SUITE 212 PALO ALTO, CA 94304
Location Phone
(650) 724-2165
Location Fax
(650) 724-6500
Mailing Address
750 WELCH RD SUITE 212 PALO ALTO, CA 94304
Mailing Phone
(650) 724-2165
Mailing Fax
(650) 724-6500
Is Sole Proprietor?
Yes
Enumeration Date
12-22-2006
Last Update Date
07-08-2007
Code Navigator

A psychologist like Nicholas St. John 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.
PSY#19784
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 1508921321, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
1
Doubled → 2
Pos 8
3
Unchanged
Pos 9
2
Doubled → 4
Check
1
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 0 → 0 9 → 18 → 9 1 → 2 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 1 + 8 + 2 + 2 + 3 + 4 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1508921321.

Other Providers at the Same Location


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

Nurse Practitioner (Pediatrics)
750 WELCH RD, #305
PALO ALTO, CA 94304
Dermatology
750 WELCH RD, STE 218
PALO ALTO, CA 94304
Pediatrics (Neonatal-Perinatal Medicine)
750 WELCH RD, SUITE 315
PALO ALTO, CA 94304
Otolaryngology (Sleep Medicine)
750 WELCH RD, # 317
PALO ALTO, CA 94304
Internal Medicine (Hepatology)
750 WELCH RD, SUITE 210
PALO ALTO, CA 94304
Pediatrics
750 WELCH RD, SUITE 325
PALO ALTO, CA 94304
Pediatrics (Neonatal-Perinatal Medicine)
750 WELCH RD, SUITE 315
PALO ALTO, CA 94304
Internal Medicine (Nephrology)
750 WELCH RD, SUITE 200
PALO ALTO, CA 94304
Pediatrics (Neonatal-Perinatal Medicine)
750 WELCH RD, STE 315
PALO ALTO, CA 94304
Pediatrics (Neonatal-Perinatal Medicine)
750 WELCH RD, SUITE 315
PALO ALTO, CA 94304
Nurse Practitioner (Family)
750 WELCH RD, # 200
PALO ALTO, CA 94304
Psychiatry & Neurology (Psychiatry)
750 WELCH RD, STE 220
PALO ALTO, CA 94304
Dentist
750 WELCH RD, SUITE 102
PALO ALTO, CA 94304
Dentist (Pediatric Dentistry)
750 WELCH RD, SUITE 102
PALO ALTO, CA 94304
Specialist
750 WELCH RD, SUITE 317
PALO ALTO, CA 94304
Pediatrics (Neonatal-Perinatal Medicine)
750 WELCH RD, NEONATAL AND DEVELOPMENTAL MEDICINE MC: 5731
PALO ALTO, CA 94304
Pediatrics (Pediatric Cardiology)
750 WELCH RD, SUITE 325, MC: 5731
PALO ALTO, CA 94304
Pediatrics (Pediatric Cardiology)
750 WELCH RD, SUITE 325
PALO ALTO, CA 94304
Nurse Practitioner (Family)
750 WELCH RD, SUITE 750
PALO ALTO, CA 94304
Psychologist (Clinical)
750 WELCH RD, DEVELOPMENTAL-BEHAVIORAL PEDIATRICS OFFICE
PALO ALTO, CA 94304

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508921321, enumerated as an "individual" on December 22, 2006.

The provider is located at 750 WELCH RD SUITE 212 PALO ALTO, CA 94304 and the phone number is (650) 724-2165.

Psychologist with taxonomy code 103T00000X.