DR. WILLIAM STANLEY AUTREY X
NPI 1427119916
Psychologist - Forensic in San Luis Obispo, CA

NPI Status: Active since December 12, 2006

Contact Information

1103 TORO ST
SAN LUIS OBISPO, CA
ZIP 93401
Phone: (805) 781-4190
Fax: (805) 781-4189

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  • Individual
  • Male
  • Psychologist
  • Forensic

About WILLIAM AUTREY

This page provides the complete NPI Profile along with additional information for William Autrey, a provider established in San Luis Obispo, California with a medical specialization in Psychologist, focusing in forensic . The healthcare provider is registered in the NPI registry with number 1427119916 assigned on December 2006. The practitioner's primary taxonomy code is 103TF0200X with license number PSY6216 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1427119916
Provider Name
DR. WILLIAM STANLEY AUTREY X
Gender
Male
Entity Type
Individual
Location Address
1103 TORO ST SAN LUIS OBISPO, CA 93401
Location Phone
(805) 781-4190
Location Fax
(805) 781-4189
Mailing Address
1103 TORO ST SAN LUIS OBISPO, CA 93401
Mailing Phone
(805) 781-4190
Mailing Fax
(805) 781-4189
Is Sole Proprietor?
Yes
Enumeration Date
12-12-2006
Last Update Date
09-11-2025
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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 Forensic

Taxonomy Code
103TF0200X
Type
Behavioral Health & Social Service Providers
License No.
PSY6216
License State
CA
Taxonomy Description
A psychologist whose specialty is characterized by activities primarily intended to provide professional psychological expertise within the judicial and legal systems.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1103T00000XBehavioral Health & Social Service Providers

Psychologist

PSY 6216 (CA)
2103TB0200XBehavioral Health & Social Service Providers

Psychologist
Cognitive & Behavioral

PSY6216 (CA)

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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 1427119916, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 2 + 1 + 1 + 8 + 9 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1427119916.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Marriage & Family Therapist
1103 TORO ST
SAN LUIS OBISPO, CA 93401
Marriage & Family Therapist
1103 TORO ST
SAN LUIS OBISPO, CA 93401
Community/Behavioral Health
1103 TORO ST
SAN LUIS OBISPO, CA 93401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427119916, enumerated as an "individual" on December 12, 2006.

The provider is located at 1103 TORO ST SAN LUIS OBISPO, CA 93401 and the phone number is (805) 781-4190.

Psychologist with taxonomy code 103TF0200X and a focus in Forensic.