DR. WILLIAM LEE MASON MD
NPI 1104981737
Preventive Medicine - Public Health & General Preventive Medicine in Little Rock, AR
NPI Status: Active since December 26, 2006
Contact Information
POB 1437 SLOT H-61
ARKANSAS DEPT OF HEALTH
LITTLE ROCK, AR
ZIP 72203
Phone: (501) 280-4127
Fax: (501) 280-4140
- Individual
- Male
- Preventive Medicine
- Public Health & General Preventive Medic...
About WILLIAM MASON
This page provides the complete NPI Profile along with additional information for William Mason, a provider established in Little Rock, Arkansas with a medical specialization in Preventive Medicine, focusing in public health & general preventive medicine . The healthcare provider is registered in the NPI registry with number 1104981737 assigned on December 2006. The practitioner's primary taxonomy code is 2083P0901X with license number C-4212 (AR). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1104981737
- Provider Name
- DR. WILLIAM LEE MASON MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- POB 1437 SLOT H-61 ARKANSAS DEPT OF HEALTH LITTLE ROCK, AR 72203
- Location Phone
- (501) 280-4127
- Location Fax
- (501) 280-4140
- Mailing Address
- 5209 EDGEWOOD RD LITTLE ROCK, AR 72207
- Mailing Phone
- (501) 663-3902
- Mailing Fax
- (501) 280-4140
- Is Sole Proprietor?
- No
- Enumeration Date
- 12-26-2006
- Last Update Date
- 09-11-2025
- 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
Preventive Medicine Public Health & General Preventive Medicine
- Taxonomy Code
- 2083P0901X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- C-4212
- License State
- AR
- Taxonomy Description
- Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207RP1001X | Allopathic & Osteopathic Physicians | Internal Medicine | C-4212 (AR) |
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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 1104981737, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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 63 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1104981737, enumerated as an "individual" on December 26, 2006.
The provider is located at POB 1437 SLOT H-61 ARKANSAS DEPT OF HEALTH LITTLE ROCK, AR 72203 and the phone number is (501) 280-4127.
Preventive Medicine with taxonomy code 2083P0901X and a focus in Public Health & General Preventive Medicine.
