MATTHEW TIMOTHY SCHWARTZ LCSW
NPI 1851256101
Social Worker - School in San Francisco, CA
NPI Status: Active since December 18, 2025
Contact Information
1515 QUINTARA ST
SAN FRANCISCO, CA
ZIP 94116
Phone: (415) 242-2615
- Individual
- Male
- Social Worker
- School
About MATTHEW SCHWARTZ
This page provides the complete NPI Profile along with additional information for Matthew Schwartz, a provider established in San Francisco, California with a medical specialization in Social Worker, focusing in school . The healthcare provider is registered in the NPI registry with number 1851256101 assigned on December 2025. The practitioner's primary taxonomy code is 1041S0200X with license number 88140 (CA). The provider is registered as an individual and his NPI record was last updated December 2025. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.
- NPI
- 1851256101
- Provider Name
- MATTHEW TIMOTHY SCHWARTZ LCSW
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1515 QUINTARA ST SAN FRANCISCO, CA 94116
- Location Phone
- (415) 242-2615
- Mailing Address
- 1515 QUINTARA ST SAN FRANCISCO, CA 94116
- Mailing Phone
- (415) 242-2615
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-18-2025
- Last Update Date
- 12-18-2025
- Code Navigator
A school social worker like Matthew Schwartz works with teachers, parents, and school administrators to develop plans and strategies to improve students' academic performance and social development. Students are referred to school social workers to deal with problems like aggressive behavior, bullying, or frequent school absences.
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
Social Worker School
- Taxonomy Code
- 1041S0200X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 88140
- License State
- CA
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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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 1851256101, 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 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 49 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 14 providers are registered at the same or a nearby location.
SAN FRANCISCO, CA 94116
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1851256101, enumerated as an "individual" on December 18, 2025.
The provider is located at 1515 QUINTARA ST SAN FRANCISCO, CA 94116 and the phone number is (415) 242-2615.
Social Worker with taxonomy code 1041S0200X and a focus in School.
