GREGORY HICKMAN PPS - 230010494
NPI 1578446449
Counselor - School in Apple Valley, CA
NPI Status: Active since July 29, 2025
Contact Information
19445 SITTING BULL RD
APPLE VALLEY, CA
ZIP 92308
Phone: (760) 961-8479
- Individual
- Male
- Counselor
- School
About GREGORY HICKMAN
This page provides the complete NPI Profile along with additional information for Gregory Hickman, a provider established in Apple Valley, California with a medical specialization in Counselor, focusing in school . The healthcare provider is registered in the NPI registry with number 1578446449 assigned on July 2025. The practitioner's primary taxonomy code is 101YS0200X with license number 230010494 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1578446449
- Provider Name
- GREGORY HICKMAN PPS - 230010494
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 19445 SITTING BULL RD APPLE VALLEY, CA 92308
- Location Phone
- (760) 961-8479
- Mailing Address
- 12555 NAVAJO RD APPLE VALLEY, CA 92308
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-29-2025
- Last Update Date
- 07-29-2025
- 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
Counselor School
- Taxonomy Code
- 101YS0200X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 230010494
- License State
- CA
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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 1578446449, 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 3 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1578446449, enumerated as an "individual" on July 29, 2025.
The provider is located at 19445 SITTING BULL RD APPLE VALLEY, CA 92308 and the phone number is (760) 961-8479.
Counselor with taxonomy code 101YS0200X and a focus in School.
