WARNER C. GREENE M.D., PH.D.
NPI 1528403797
Internal Medicine - Allergy & Immunology in San Francisco, CA
NPI Status: Active since May 01, 2013
Contact Information
1650 OWENS ST
SAN FRANCISCO, CA
ZIP 94158
Phone: (415) 734-4805
Fax: (415) 355-0153
- Individual
- Male
- Internal Medicine
- Allergy & Immunology
About WARNER GREENE
This page provides the complete NPI Profile along with additional information for Warner Greene, an internist established in San Francisco, California with a medical specialization in Internal Medicine, focusing in allergy & immunology . The healthcare provider is registered in the NPI registry with number 1528403797 assigned on May 2013. The practitioner's primary taxonomy code is 207RA0201X with license number G77830 (CA). The provider is registered as an individual and his NPI record was last updated 13 years ago.
- NPI
- 1528403797
- Provider Name
- WARNER C. GREENE M.D., PH.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1650 OWENS ST SAN FRANCISCO, CA 94158
- Location Phone
- (415) 734-4805
- Location Fax
- (415) 355-0153
- Mailing Address
- 1650 OWENS ST SAN FRANCISCO, CA 94158
- Mailing Phone
- (415) 734-4805
- Mailing Fax
- (415) 355-0153
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-01-2013
- Last Update Date
- 05-01-2013
- Code Navigator
An internist like Warner Greene 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 Allergy & Immunology
- Taxonomy Code
- 207RA0201X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G77830
- License State
- CA
- Taxonomy Description
- An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology.
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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 1528403797, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).
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 73 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1528403797, enumerated as an "individual" on May 01, 2013.
The provider is located at 1650 OWENS ST SAN FRANCISCO, CA 94158 and the phone number is (415) 734-4805.
Internal Medicine with taxonomy code 207RA0201X and a focus in Allergy & Immunology.
