RICHARD ROBERT GRUNERT CACT 2215167-2
NPI 1023646981
Day Training/Habilitation Specialist in San Mateo, CA
NPI Status: Active since March 27, 2020
Contact Information
2000 ALAMEDA DE LAS PULGAS
SAN MATEO, CA
ZIP 94403
Phone: (650) 670-7714
- Individual
- Male
- Day Training/Habilitation Specialist
About RICHARD GRUNERT
This page provides the complete NPI Profile along with additional information for Richard Grunert, a provider established in San Mateo, California with a medical specialization in Day Training/habilitation Specialist. The healthcare provider is registered in the NPI registry with number 1023646981 assigned on March 2020. The practitioner's primary taxonomy code is 373H00000X with license number 2215767-2 (CA). The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1023646981
- Provider Name
- RICHARD ROBERT GRUNERT CACT 2215167-2
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2000 ALAMEDA DE LAS PULGAS SAN MATEO, CA 94403
- Location Phone
- (650) 670-7714
- Mailing Address
- 668 CHEVY CHASE WAY HAYWARD, CA 94544
- Mailing Phone
- (650) 921-8631
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 03-27-2020
- Last Update Date
- 03-25-2026
- 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
Day Training/Habilitation Specialist
- Taxonomy Code
- 373H00000X
- Type
- Nursing Service Related Providers
- License No.
- 2215767-2
- License State
- CA
- Taxonomy Description
- Individuals experienced or trained in working with developmentally disabled individuals who need assistance in acquiring and maintaining life skills that enable them to cope more effectively with the demands of independent living.
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 | 2215767-1 (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 1023646981, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).
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 59 is 60. 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.
SAN MATEO, CA 94403
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1023646981, enumerated as an "individual" on March 27, 2020.
The provider is located at 2000 ALAMEDA DE LAS PULGAS SAN MATEO, CA 94403 and the phone number is (650) 670-7714.
Day Training/Habilitation Specialist with taxonomy code 373H00000X.
