SARAH E ROYCE MD
NPI 1073529236
Preventive Medicine - Occupational Medicine in San Francisco, CA
NPI Status: Active since July 31, 2006
Contact Information
1001 POTRERO AVE
RM 5K1
SAN FRANCISCO, CA
ZIP 94110
Phone: (415) 206-8314
Fax: (415) 695-1551
- Individual
- Female
- Preventive Medicine
- Occupational Medicine
About SARAH ROYCE
This page provides the complete NPI Profile along with additional information for Sarah Royce, a provider established in San Francisco, California with a medical specialization in Preventive Medicine, focusing in occupational medicine . The healthcare provider is registered in the NPI registry with number 1073529236 assigned on July 2006. The practitioner's primary taxonomy code is 2083X0100X with license number G57723 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1073529236
- Provider Name
- SARAH E ROYCE MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1001 POTRERO AVE RM 5K1 SAN FRANCISCO, CA 94110
- Location Phone
- (415) 206-8314
- Location Fax
- (415) 695-1551
- Mailing Address
- PO BOX 7464 SAN FRANCISCO, CA 94120
- Mailing Phone
- (415) 206-3103
- Mailing Fax
- (415) 695-1551
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-31-2006
- Last Update Date
- 09-11-2025
- Code Navigator
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
Preventive Medicine Occupational Medicine
- Taxonomy Code
- 2083X0100X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G57723
- License State
- CA
- Taxonomy Description
- Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.
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) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | G57723 (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 1073529236, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 54 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
SAN FRANCISCO, CA 94110
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1073529236, enumerated as an "individual" on July 31, 2006.
The provider is located at 1001 POTRERO AVE RM 5K1 SAN FRANCISCO, CA 94110 and the phone number is (415) 206-8314.
Preventive Medicine with taxonomy code 2083X0100X and a focus in Occupational Medicine.
