DR. WILLIAM CHARLES ISLER III PHD
NPI 1699838409
Psychologist - Health Service in Lackland Afb, TX
NPI Status: Active since December 19, 2006
Contact Information
1100 WILFORD HALL LOOP BLDG 4554
LACKLAND AFB, TX
ZIP 78236
Phone: (210) 292-6225
- Individual
- Male
- Psychologist
- Health Service
About WILLIAM ISLER
This page provides the complete NPI Profile along with additional information for William Isler, a provider established in Lackland Afb, Texas with a medical specialization in Psychologist, focusing in health service . The healthcare provider is registered in the NPI registry with number 1699838409 assigned on December 2006. The practitioner's primary taxonomy code is 103TH0100X with license number 2313 (WA). The provider is registered as an individual and his NPI record was last updated 7 years ago.
- NPI
- 1699838409
- Provider Name
- DR. WILLIAM CHARLES ISLER III PHD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1100 WILFORD HALL LOOP BLDG 4554 LACKLAND AFB, TX 78236
- Location Phone
- (210) 292-6225
- Mailing Address
- 3403 FONTENAY PARK SAN ANTONIO, TX 78251
- Mailing Phone
- (210) 454-5012
- Is Sole Proprietor?
- No
- Enumeration Date
- 12-19-2006
- Last Update Date
- 09-11-2019
- 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
Psychologist Health Service
- Taxonomy Code
- 103TH0100X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 2313
- License State
- WA
- Taxonomy Description
- A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is demonstrably at high risk of impairment (1974).
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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 1699838409, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).
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 71 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
LACKLAND AFB, TX 78236
JBSA LACKLAND, TX 78236
JBSA LACKLAND, TX 78236
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1699838409, enumerated as an "individual" on December 19, 2006.
The provider is located at 1100 WILFORD HALL LOOP BLDG 4554 LACKLAND AFB, TX 78236 and the phone number is (210) 292-6225.
Psychologist with taxonomy code 103TH0100X and a focus in Health Service.
