NOLAN HIRAYAMA
NPI 1104795541
Chiropractor in San Francisco, CA

NPI Status: Active since November 03, 2025

Contact Information

4630 GEARY BLVD STE 302
SAN FRANCISCO, CA
ZIP 94118
Phone: (415) 629-2577

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  • Individual
  • Male
  • Chiropractor

About NOLAN HIRAYAMA

This page provides the complete NPI Profile along with additional information for Nolan Hirayama, a provider established in San Francisco, California with a medical specialization in Chiropractor. The healthcare provider is registered in the NPI registry with number 1104795541 assigned on November 2025. The practitioner's primary taxonomy code is 111N00000X with license number DC37440 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1104795541
Provider Name
NOLAN HIRAYAMA
Gender
Male
Entity Type
Individual
Location Address
4630 GEARY BLVD STE 302 SAN FRANCISCO, CA 94118
Location Phone
(415) 629-2577
Mailing Address
4630 GEARY BLVD STE 302 SAN FRANCISCO, CA 94118
Mailing Phone
(415) 629-2577
Is Sole Proprietor?
No
Enumeration Date
11-03-2025
Last Update Date
11-03-2025
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A chiropractor like Nolan Hirayama helps patients with problems of the neuromusculoskeletal system, which includes nerves, bones, muscles, ligaments, and tendons. Chiropractors use spinal adjustments and manipulation, as well as other clinical interventions, to manage health issues such as back and neck pain. Some chiropractors apply procedures like massage therapy, rehabilitative exercise, ultrasound and spinal adjustments and manipulation. A chiropractor focuses on the patients overall health and might refer patients to other healthcare professionals if necessary.

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

Chiropractor

Taxonomy Code
111N00000X
Type
Chiropractic Providers
License No.
DC37440
License State
CA
Taxonomy Description
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

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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 1104795541, 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
1
Unchanged
Pos 3
0
Doubled → 0
Pos 4
4
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
9
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
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 7 → 14 → 5 5 → 10 → 1 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 4 + 9 + 1 + 0 + 5 + 8 + 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 1104795541.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104795541, enumerated as an "individual" on November 03, 2025.

The provider is located at 4630 GEARY BLVD STE 302 SAN FRANCISCO, CA 94118 and the phone number is (415) 629-2577.

Chiropractor with taxonomy code 111N00000X.