DAYNA SYKES ASW
NPI 1891646469
Social Worker - School in Vallejo, CA
NPI Status: Active since February 09, 2026
Contact Information
1347 AMADOR ST
VALLEJO, CA
ZIP 94590
Phone: (925) 500-8383
- Individual
- Female
- Social Worker
- School
About DAYNA SYKES
This page provides the complete NPI Profile along with additional information for Dayna Sykes, a provider established in Vallejo, California with a medical specialization in Social Worker, focusing in school . The healthcare provider is registered in the NPI registry with number 1891646469 assigned on February 2026. The practitioner's primary taxonomy code is 1041S0200X. The provider is registered as an individual and her NPI record was last updated February 2026. Dayna Sykes operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.
- NPI
- 1891646469
- Provider Name
- DAYNA SYKES ASW
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1347 AMADOR ST VALLEJO, CA 94590
- Location Phone
- (925) 500-8383
- Mailing Address
- 120 PHOENIX CIR VALLEJO, CA 94589
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-09-2026
- Last Update Date
- 02-09-2026
- Code Navigator
A school social worker like Dayna Sykes 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 State
- CA
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas 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 1891646469, 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.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1891646469, enumerated as an "individual" on February 09, 2026.
The provider is located at 1347 AMADOR ST VALLEJO, CA 94590 and the phone number is (925) 500-8383.
Social Worker with taxonomy code 1041S0200X and a focus in School.
