JORDAN HOLZER
NPI 1912476557
Clinic/Center - Occupational Medicine in Tustin, CA

NPI Status: Active since November 13, 2018

Contact Information

3002 DOW AVE STE 114
TUSTIN, CA
ZIP 92780
Phone: (714) 731-4668

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

Individual
Male
Clinic/Center
Occupational Medicine

About JORDAN HOLZER

This page provides the complete NPI Profile along with additional information for Jordan Holzer, a provider established in Tustin, California with a medical specialization in Clinic/center, focusing in occupational medicine . The healthcare provider is registered in the NPI registry with number 1912476557 assigned on November 2018. The practitioner's primary taxonomy code is 261QX0100X with license number 99058366 (CA). The provider is registered as an individual and his NPI record was last updated 8 years ago.

NPI: 1912476557
Provider Name: JORDAN HOLZER
Gender: Male
Entity Type: Individual
Location Address: 3002 DOW AVE STE 114 TUSTIN, CA 92780
Location Phone: (714) 731-4668
Mailing Address: 3002 DOW AVE STE 114 TUSTIN, CA 92780
Is Sole Proprietor?: Yes
Enumeration Date: 11-13-2018
Last Update Date: 11-13-2018
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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: Clinic/Center Occupational Medicine
Taxonomy Code: 261QX0100X
Type: Ambulatory Health Care Facilities
License No.: 99058366
License State: CA

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 1912476557, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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 → 2

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 1 → 2 4 → 8 6 → 12 → 3 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 2 + 2 + 8 + 7 + 1 + 2 + 5 + 1 + 0 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1912476557.