GARY LEWALL WILLIAMS PEER RECOVERY COACH
NPI 1427701366
Peer Specialist in Fontana, CA
NPI Status: Active since February 01, 2022
Contact Information
15217 SAN BERNARDINO AVE
FONTANA, CA
ZIP 92335
Phone: (951) 643-2150
- Individual
- Male
- Peer Specialist
About GARY WILLIAMS
This page provides the complete NPI Profile along with additional information for Gary Williams, a provider established in Fontana, California with a medical specialization in Peer Specialist. The healthcare provider is registered in the NPI registry with number 1427701366 assigned on February 2022. The practitioner's primary taxonomy code is 175T00000X with license number MPSS-PCIHYD (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1427701366
- Provider Name
- GARY LEWALL WILLIAMS PEER RECOVERY COACH
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 15217 SAN BERNARDINO AVE FONTANA, CA 92335
- Location Phone
- (951) 643-2150
- Mailing Address
- 15217 SAN BERNARDINO AVE FONTANA, CA 92335
- Mailing Phone
- (951) 643-2150
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-01-2022
- Last Update Date
- 10-10-2025
- 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
Peer Specialist
- Taxonomy Code
- 175T00000X
- Type
- Other Service Providers
- License No.
- MPSS-PCIHYD
- License State
- CA
- Taxonomy Description
- Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.
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 | 101YA0400X | Behavioral Health & Social Service Providers | Counselor | R1486101022 (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 1427701366, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).
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 54 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 17 providers are registered at the same or a nearby location.
FONTANA, CA 92335
FONTANA, CA 92335
FONTANA, CA 92335
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1427701366, enumerated as an "individual" on February 01, 2022.
The provider is located at 15217 SAN BERNARDINO AVE FONTANA, CA 92335 and the phone number is (951) 643-2150.
Peer Specialist with taxonomy code 175T00000X.
