DR. WILLIAM STOHL MD
NPI 1225230477
Internal Medicine - Rheumatology in Los Angeles, CA
NPI Status: Active since June 01, 2007
Contact Information
2020 ZONAL AVE
IRD 620
LOS ANGELES, CA
ZIP 90033
Phone: (323) 442-1946
Fax: (323) 442-2874
- Individual
- Male
- Internal Medicine
- Rheumatology
About WILLIAM STOHL
This page provides the complete NPI Profile along with additional information for William Stohl, an internist established in Los Angeles, California with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1225230477 assigned on June 2007. The practitioner's primary taxonomy code is 207RR0500X with license number G58577 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1225230477
- Provider Name
- DR. WILLIAM STOHL MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2020 ZONAL AVE IRD 620 LOS ANGELES, CA 90033
- Location Phone
- (323) 442-1946
- Location Fax
- (323) 442-2874
- Mailing Address
- 137 N ALTA VISTA BLVD LOS ANGELES, CA 90036
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-01-2007
- Last Update Date
- 12-12-2025
- Code Navigator
An internist like William Stohl 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.
- G58577
- 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 1225230477, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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 53 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 8 providers are registered at the same or a nearby location.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1225230477, enumerated as an "individual" on June 01, 2007.
The provider is located at 2020 ZONAL AVE IRD 620 LOS ANGELES, CA 90033 and the phone number is (323) 442-1946.
Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.
