DR. JAMES LEEK MD
NPI 1659353530
Internal Medicine - Rheumatology in Roseville, CA
NPI Status: Active since November 16, 2005
Contact Information
2261 DOUGLAS BLVD
ROSEVILLE, CA
ZIP 95661
Phone: (916) 783-7109
- Individual
- Male
- Internal Medicine
- Rheumatology
About JAMES LEEK
This page provides the complete NPI Profile along with additional information for James Leek, an internist established in Roseville, California with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1659353530 assigned on November 2005. The practitioner's primary taxonomy code is 207RR0500X with license number G022979 (CA). The provider is registered as an individual and his NPI record was last updated 15 years ago.
- NPI
- 1659353530
- Provider Name
- DR. JAMES LEEK MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2261 DOUGLAS BLVD ROSEVILLE, CA 95661
- Location Phone
- (916) 783-7109
- Mailing Address
- 2261 DOUGLAS BLVD ROSEVILLE, CA 95661
- Mailing Phone
- (916) 783-7109
- Is Sole Proprietor?
- No
- Enumeration Date
- 11-16-2005
- Last Update Date
- 10-26-2011
- Code Navigator
An internist like James Leek is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
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
Internal Medicine Rheumatology
- Taxonomy Code
- 207RR0500X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G022979
- License State
- CA
- Taxonomy Description
- An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
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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 1659353530, 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 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 70 is 70. 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.
ROSEVILLE, CA 95661
ROSEVILLE, CA 95661
ROSEVILLE, CA 95661
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1659353530, enumerated as an "individual" on November 16, 2005.
The provider is located at 2261 DOUGLAS BLVD ROSEVILLE, CA 95661 and the phone number is (916) 783-7109.
Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.
