JOSEPH NATHAN
NPI 1518812882
Emergency Medicine - Emergency Medical Services in San Francisco, CA
NPI Status: Active since March 03, 2026
Contact Information
2241 JERROLD AVE
SAN FRANCISCO, CA
ZIP 94124
Phone: (415) 558-3200
- Individual
- Male
- Emergency Medicine
- Emergency Medical Services
About JOSEPH NATHAN
This page provides the complete NPI Profile along with additional information for Joseph Nathan, a provider established in San Francisco, California with a medical specialization in Emergency Medicine, focusing in emergency medical services . The healthcare provider is registered in the NPI registry with number 1518812882 assigned on March 2026. The practitioner's primary taxonomy code is 207PE0004X with license number P46181 (CA). The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1518812882
- Provider Name
- JOSEPH NATHAN
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2241 JERROLD AVE SAN FRANCISCO, CA 94124
- Location Phone
- (415) 558-3200
- Mailing Address
- 4229 LINCOLN WAY SAN FRANCISCO, CA 94122
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-03-2026
- Last Update Date
- 03-03-2026
- 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
Emergency Medicine Emergency Medical Services
- Taxonomy Code
- 207PE0004X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- P46181
- License State
- CA
- Taxonomy Description
- An emergency medicine physician who specializes in non-hospital based emergency medical services (e.g., disaster site, accident scene, transport vehicle, etc.) to provide pre-hospital assessment, treatment, and transport patients.
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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 1518812882, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).
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 68 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1518812882, enumerated as an "individual" on March 03, 2026.
The provider is located at 2241 JERROLD AVE SAN FRANCISCO, CA 94124 and the phone number is (415) 558-3200.
Emergency Medicine with taxonomy code 207PE0004X and a focus in Emergency Medical Services.
