COUNTY OF SAN MATEO
NPI 1336809359
Case Management in San Mateo, CA
NPI Status: Active since December 20, 2021
Contact Information
225 37TH AVE FL 2
SAN MATEO, CA
ZIP 94403
Phone: (628) 573-2346
- Organization
- Case Management
About COUNTY OF SAN MATEO
This page provides the complete NPI Profile along with additional information for County Of San Mateo, a provider established in San Mateo, California operating as a Case Management. The healthcare provider is registered in the NPI registry with number 1336809359 assigned on December 2021. The practitioner's primary taxonomy code is 251B00000X. The provider is registered as an organization and their NPI record was last updated February 2026. The authorized official of this NPI record is Norman Lau (Financial Services Manager Ii)
- NPI
- 1336809359
- Provider Name
- COUNTY OF SAN MATEO
- Entity Type
- Organization
- Location Address
- 225 37TH AVE FL 2 SAN MATEO, CA 94403
- Location Phone
- (628) 573-2346
- Mailing Address
- 225 37TH AVE FL 2 SAN MATEO, CA 94403
- Mailing Phone
- (628) 222-3058
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 12-20-2021
- Last Update Date
- 02-10-2026
- 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
Case Management
- Taxonomy Code
- 251B00000X
- Type
- Agencies
- Taxonomy Description
- An organization that is responsible for providing case management services. The agency provides services which assist an individual in gaining access to needed medical, social, educational, and/or other services. Case management services may be used to locate, coordinate, and monitor necessary appropriate services. It may be used to encourage the use of cost-effective medical care by referrals to appropriate providers and to discourage over utilization of costly services. Case management may also serve to provide necessary coordination of non-medical services such as vocational rehabilitation, education, employment, when the services provided enable the individual to function at the highest level.
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 | |
| 2 | 171M00000X | Other Service Providers | Case Manager/Care Coordinator | |
| 3 | 251K00000X | Agencies | Public Health or Welfare |
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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 1336809359, 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 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 61 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1336809359, enumerated as an "organization" on December 20, 2021.
The provider is located at 225 37TH AVE FL 2 SAN MATEO, CA 94403 and the phone number is (628) 573-2346.
Case Management with taxonomy code 251B00000X.
