WILLIAM T ARMSTRONG
NPI 1508712993
Private Vehicle in Indianapolis, IN
NPI Status: Active since March 09, 2026
Contact Information
1516 N GALE ST
INDIANAPOLIS, IN
ZIP 46201
Phone: (317) 499-0367
- Individual
- Male
- Private Vehicle
About WILLIAM ARMSTRONG
This page provides the complete NPI Profile along with additional information for William Armstrong, a provider established in Indianapolis, Indiana with a medical specialization in Private Vehicle. The healthcare provider is registered in the NPI registry with number 1508712993 assigned on March 2026. The practitioner's primary taxonomy code is 347C00000X with license number C153EU (IN). The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1508712993
- Provider Name
- WILLIAM T ARMSTRONG
- Other Name
- JESSICA ARMSTRONG
- Other Name Type
- Other Name (5)
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1516 N GALE ST INDIANAPOLIS, IN 46201
- Location Phone
- (317) 499-0367
- Mailing Address
- 1516 N GALE ST INDIANAPOLIS, IN 46201
- Mailing Phone
- (317) 499-0367
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 03-09-2026
- Last Update Date
- 03-09-2026
- 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
Private Vehicle
- Taxonomy Code
- 347C00000X
- Type
- Transportation Services
- License No.
- C153EU
- License State
- IN
- Taxonomy Description
- An individual paid to provide non-emergency transportation using their privately owned/leased vehicle.
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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 1508712993, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).
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 67 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1508712993, enumerated as an "individual" on March 09, 2026.
The provider is located at 1516 N GALE ST INDIANAPOLIS, IN 46201 and the phone number is (317) 499-0367.
Private Vehicle with taxonomy code 347C00000X.
