CHELSEA ANNE LESNIAK MA, PPSC
NPI 1104624691
Counselor - School in Glendora, CA
NPI Status: Active since March 03, 2025
Contact Information
1330 AMELIA AVE
GLENDORA, CA
ZIP 91740
Phone: (626) 852-4614
- Individual
- Female
- Counselor
- School
About CHELSEA LESNIAK
This page provides the complete NPI Profile along with additional information for Chelsea Lesniak, a provider established in Glendora, California with a medical specialization in Counselor, focusing in school . The healthcare provider is registered in the NPI registry with number 1104624691 assigned on March 2025. The practitioner's primary taxonomy code is 101YS0200X with license number 210050088 (CA). The provider is registered as an individual and her NPI record was last updated one year ago. 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
- 1104624691
- Provider Name
- CHELSEA ANNE LESNIAK MA, PPSC
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1330 AMELIA AVE GLENDORA, CA 91740
- Location Phone
- (626) 852-4614
- Mailing Address
- 768 TULLOCK ST BLOOMINGTON, CA 92316
- Mailing Phone
- (909) 709-4415
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 03-03-2025
- Last Update Date
- 03-03-2025
- 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
Counselor School
- Taxonomy Code
- 101YS0200X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 210050088
- 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 1104624691, 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.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1104624691, enumerated as an "individual" on March 03, 2025.
The provider is located at 1330 AMELIA AVE GLENDORA, CA 91740 and the phone number is (626) 852-4614.
Counselor with taxonomy code 101YS0200X and a focus in School.
