RUTH LYNN CRAIG M.D.
NPI 1639473820
Contractor in Oakland, CA
NPI Status: Active since January 02, 2011
Contact Information
5 BELL WAVER WAY
OAKLAND, CA
ZIP 94619
Phone: (510) 531-0477
Fax: (510) 530-3992
- Individual
- Female
- Contractor
About RUTH CRAIG
This page provides the complete NPI Profile along with additional information for Ruth Craig, a provider established in Oakland, California with a medical specialization in Contractor. The healthcare provider is registered in the NPI registry with number 1639473820 assigned on January 2011. The practitioner's primary taxonomy code is 171W00000X with license number G55951 (CA). The provider is registered as an individual and her NPI record was last updated 16 years ago.
- NPI
- 1639473820
- Provider Name
- RUTH LYNN CRAIG M.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 5 BELL WAVER WAY OAKLAND, CA 94619
- Location Phone
- (510) 531-0477
- Location Fax
- (510) 530-3992
- Mailing Address
- 5 BELL WAVER WAY OAKLAND, CA 94619
- Mailing Phone
- (510) 531-0477
- Mailing Fax
- (510) 530-3992
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-02-2011
- Last Update Date
- 01-02-2011
- 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
Contractor
- Taxonomy Code
- 171W00000X
- Type
- Other Service Providers
- License No.
- G55951
- License State
- CA
- Taxonomy Description
- For the purposes of the Health Care Provider Taxonomy, a contractor is limited to individuals who do construction or mechanical work to modify a patient's environment to accommodate a health condition. Contractors perform projects including, but not limited to, building wheelchair ramps, widening doorways, modifying personal vehicles, and making other improvements for patient access and movement. This code has no relation to a provider's employment status.
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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 1639473820, we treat the final digit (0) 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 80. The final step is to find the difference between that total and the next multiple of ten (80 - 80 = 0).
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 80 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639473820, enumerated as an "individual" on January 02, 2011.
The provider is located at 5 BELL WAVER WAY OAKLAND, CA 94619 and the phone number is (510) 531-0477.
Contractor with taxonomy code 171W00000X.
