DR. WILLIAM SIDNEY WARREN JR. M.D.
NPI 1467547984
Anesthesiology - Addiction Medicine in Little Rock, AR
NPI Status: Active since October 03, 2006
Contact Information
425 W CAPITOL AVE STE 1535
LITTLE ROCK, AR
ZIP 72201
Phone: (501) 448-6663
Fax: (501) 448-6663
- Individual
- Male
- Anesthesiology
- Addiction Medicine
About WILLIAM WARREN
This page provides the complete NPI Profile along with additional information for William Warren, a provider established in Little Rock, Arkansas with a medical specialization in Anesthesiology, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1467547984 assigned on October 2006. The practitioner's primary taxonomy code is 207LA0401X with license number C6145 (AR). The provider is registered as an individual and his NPI record was last updated 3 years ago.
- NPI
- 1467547984
- Provider Name
- DR. WILLIAM SIDNEY WARREN JR. M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 425 W CAPITOL AVE STE 1535 LITTLE ROCK, AR 72201
- Location Phone
- (501) 448-6663
- Location Fax
- (501) 448-6663
- Mailing Address
- 425 W CAPITOL AVE STE 1535 LITTLE ROCK, AR 72201
- Mailing Phone
- (501) 448-6663
- Mailing Fax
- (501) 448-6663
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 10-03-2006
- Last Update Date
- 06-24-2023
- 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
Anesthesiology Addiction Medicine
- Taxonomy Code
- 207LA0401X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- C6145
- License State
- AR
- Taxonomy Description
- An anesthesiologist who specializes in the diagnosis and treatment of addictions.
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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 1467547984, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).
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 66 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1467547984, enumerated as an "individual" on October 03, 2006.
The provider is located at 425 W CAPITOL AVE STE 1535 LITTLE ROCK, AR 72201 and the phone number is (501) 448-6663.
Anesthesiology with taxonomy code 207LA0401X and a focus in Addiction Medicine.
