VIVIAN GREGORCHUK OTR/L
NPI 1568713329
Occupational Therapist - Mental Health in Santa Ana, CA
NPI Status: Active since September 19, 2012
Contact Information
6 HUTTON CENTRE DR.
#400
SANTA ANA, CA
ZIP 92707
Phone: (714) 241-5600
Fax: (415) 551-1763
- Individual
- Female
- Occupational Therapist
- Mental Health
About VIVIAN GREGORCHUK
This page provides the complete NPI Profile along with additional information for Vivian Gregorchuk, a provider established in Santa Ana, California with a medical specialization in Occupational Therapist, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1568713329 assigned on September 2012. The practitioner's primary taxonomy code is 225XM0800X with license number 14171 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1568713329
- Provider Name
- VIVIAN GREGORCHUK OTR/L
- Other Name
- VIVIAN LI OTR/L
- Other Name Type
- Former Name (1)
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 6 HUTTON CENTRE DR. #400 SANTA ANA, CA 92707
- Location Phone
- (714) 241-5600
- Location Fax
- (415) 551-1763
- Mailing Address
- 6 HUTTON CENTRE DR. #400 SANTA ANA, CA 92707
- Mailing Phone
- (714) 241-5600
- Mailing Fax
- (415) 551-1763
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 09-19-2012
- Last Update Date
- 07-23-2025
- 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
Occupational Therapist Mental Health
- Taxonomy Code
- 225XM0800X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- 14171
- License State
- CA
- Taxonomy Description
- Occupational therapists provide treatment for people recovering from a mental or physical illness to regain their independence and stability and to engage in normal daily occupations (work, home, family life, school, leisure). Occupational therapists provide particular emphasis on interventions that result in improved quality of life and decrease hospitalization.
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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 1568713329, 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 1568713329, enumerated as an "individual" on September 19, 2012.
The provider is located at 6 HUTTON CENTRE DR. #400 SANTA ANA, CA 92707 and the phone number is (714) 241-5600.
Occupational Therapist with taxonomy code 225XM0800X and a focus in Mental Health.
