MARGARET MARY CHINN
NPI 1669311338
Occupational Therapist - Pediatrics in Oakland, CA
NPI Status: Active since March 26, 2026
Contact Information
915 54TH ST
OAKLAND, CA
ZIP 94608
Phone: (510) 879-5003
- Individual
- Female
- Occupational Therapist
- Pediatrics
About MARGARET CHINN
This page provides the complete NPI Profile along with additional information for Margaret Chinn, a provider established in Oakland, California with a medical specialization in Occupational Therapist, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1669311338 assigned on March 2026. The practitioner's primary taxonomy code is 225XP0200X with license number 14350 (CA). The provider is registered as an individual and her NPI record was last updated March 2026.
- NPI
- 1669311338
- Provider Name
- MARGARET MARY CHINN
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 915 54TH ST OAKLAND, CA 94608
- Location Phone
- (510) 879-5003
- Mailing Address
- 214 CYPRESS ST APT J ALAMEDA, CA 94501
- Mailing Phone
- (415) 420-6349
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-26-2026
- Last Update Date
- 03-26-2026
- 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
Occupational Therapist Pediatrics
- Taxonomy Code
- 225XP0200X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- 14350
- License State
- CA
- Taxonomy Description
- Occupational therapists provide services to infants, toddlers and children who have or who are at risk for developmental delays or disabilities. Occupational therapy is concerned with a child's ability to participate in daily life activities or occupations. Occupational therapists use their unique expertise to help children with social-emotional, physical, cognitive, communication, and adaptive behavioral challenges and to help children to be prepared for and perform important learning and school-related activities and to fulfill their rule as students. Through an understanding of the impact of disability, illness, and impairment on a child's development, plan, ability to learn new skills, and overall occupational performance, occupational therapists design interventions that promote healthy development, establish needed skills, and/or modify environments, all in support of participation in daily activities.
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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 1669311338, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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 62 is 70. 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.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1669311338, enumerated as an "individual" on March 26, 2026.
The provider is located at 915 54TH ST OAKLAND, CA 94608 and the phone number is (510) 879-5003.
Occupational Therapist with taxonomy code 225XP0200X and a focus in Pediatrics.
