CITY & COUNTY OF SAN FRANCISCO
NPI 1083433015
Pharmacy in San Francisco, CA

NPI Status: Active since October 07, 2024

Contact Information

425 7TH ST
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 575-4327

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

Organization
Pharmacy

About CITY & COUNTY OF SAN FRANCISCO

This page provides the complete NPI Profile along with additional information for City & County Of San Francisco, a provider established in San Francisco, California operating as a Pharmacy. The healthcare provider is registered in the NPI registry with number 1083433015 assigned on October 2024. The practitioner's primary taxonomy code is 333600000X. The provider is registered as an organization and their NPI record was last updated one year ago. The provider's . The authorized official of this NPI record is Louis Chi Hoo Yu (Pharmacist In Charge)

NPI: 1083433015
Provider Legal Name: CITY & COUNTY OF SAN FRANCISCO
Other Organization Name
Other Name Type: (6)
Entity Type: Organization
Location Address: 425 7TH ST SAN FRANCISCO, CA 94103
Location Phone: (415) 575-4327
Mailing Address: 425 7TH ST SAN FRANCISCO, CA 94103
Is Sole Proprietor?: No
Is Organization Subpart?: Yes
Enumeration Date: 10-07-2024
Last Update Date: 02-13-2025
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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: Pharmacy
Taxonomy Code: 333600000X
Type: Suppliers
Taxonomy Description: A facility used by pharmacists for the compounding and dispensing of medicinal preparations and other associated professional and administrative services. A pharmacy is a facility whose primary function is to store, prepare and legally dispense prescription drugs under the professional supervision of a licensed pharmacist. It meets any licensing or certification standards set forth by the jurisdiction where it is located.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name: LOUIS CHI HOO YU
Authorized Official Title: PHARMACIST IN CHARGE
Authorized Official Phone: (415) 575-4327

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 1083433015, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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 → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 2

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 8 → 16 → 7 4 → 8 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 6 + 3 + 8 + 3 + 6 + 0 + 2 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1083433015.