DR. WARREN MARION JOHNSON DPM
NPI 1457423469
Podiatrist - Foot & Ankle Surgery in Fremont, CA
NPI Status: Active since November 14, 2006
Contact Information
3775 BEACON AVE
STE 120
FREMONT, CA
ZIP 94538
Phone: (510) 794-6633
Fax: (510) 794-6637
- Individual
- Male
- Podiatrist
- Foot & Ankle Surgery
About WARREN JOHNSON
This page provides the complete NPI Profile along with additional information for Warren Johnson, a provider established in Fremont, California with a medical specialization in Podiatrist, focusing in foot & ankle surgery . The healthcare provider is registered in the NPI registry with number 1457423469 assigned on November 2006. The practitioner's primary taxonomy code is 213ES0103X with license number E1285 (CA). The provider is registered as an individual and his NPI record was last updated 8 years ago.
- NPI
- 1457423469
- Provider Name
- DR. WARREN MARION JOHNSON DPM
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3775 BEACON AVE STE 120 FREMONT, CA 94538
- Location Phone
- (510) 794-6633
- Location Fax
- (510) 794-6637
- Mailing Address
- 3775 BEACON AVE STE 120 FREMONT, CA 94538
- Mailing Phone
- (510) 794-6633
- Mailing Fax
- (510) 794-6637
- Is Sole Proprietor?
- No
- Enumeration Date
- 11-14-2006
- Last Update Date
- 01-20-2018
- 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
Podiatrist Foot & Ankle Surgery
- Taxonomy Code
- 213ES0103X
- Type
- Podiatric Medicine & Surgery Service Providers
- License No.
- E1285
- License State
- 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 1457423469, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).
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 61 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 16 providers are registered at the same or a nearby location.
FREMONT, CA 94538
FREMONT, CA 94538
FREMONT, CA 94538
FREMONT, CA 94538
FREMONT, CA 94538
FREMONT, CA 94538
FREMONT, CA 94538
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1457423469, enumerated as an "individual" on November 14, 2006.
The provider is located at 3775 BEACON AVE STE 120 FREMONT, CA 94538 and the phone number is (510) 794-6633.
Podiatrist with taxonomy code 213ES0103X and a focus in Foot & Ankle Surgery.
