DR. FREDERICK FOWLER MD
NPI 1902047533
Psychiatry & Neurology - Forensic Psychiatry in Ione, CA

NPI Status: Active since March 11, 2009

Contact Information

4001 HIGHWAY 104
IONE, CA
ZIP 95640
Phone: (209) 274-4911

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

Individual
Male
Psychiatry & Neurology
Forensic Psychiatry

About FREDERICK FOWLER

This page provides the complete NPI Profile along with additional information for Frederick Fowler, a provider established in Ione, California with a medical specialization in Psychiatry & Neurology, focusing in forensic psychiatry . The healthcare provider is registered in the NPI registry with number 1902047533 assigned on March 2009. The practitioner's primary taxonomy code is 2084F0202X with license number A21296 (CA). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI: 1902047533
Provider Name: DR. FREDERICK FOWLER MD
Gender: Male
Entity Type: Individual
Location Address: 4001 HIGHWAY 104 IONE, CA 95640
Location Phone: (209) 274-4911
Mailing Address: 214 ASHWORTH DR IONE, CA 95640
Mailing Phone: (209) 274-4911
Is Sole Proprietor?: Yes
Enumeration Date: 03-11-2009
Last Update Date: 03-11-2009
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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: Psychiatry & Neurology Forensic Psychiatry
Taxonomy Code: 2084F0202X
Type: Allopathic & Osteopathic Physicians
License No.: A21296
License State: CA
Taxonomy Description: Forensic Psychiatry is a subspecialty with psychiatric focus on interrelationships with civil, criminal and administrative law, evaluation and specialized treatment of individuals involved with the legal system, incarcerated in jails, prisons, and forensic psychiatry hospitals.

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 1902047533, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 0

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 6

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 0 → 0 0 → 0 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 0 + 4 + 1 + 4 + 5 + 6 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3

This NPI is valid

The calculated check digit is 3, which matches the last digit of 1902047533.