VALERIE WELK MA
NPI 1538586219
Occupational Therapy Assistant in West Sacramento, CA
NPI Status: Active since March 19, 2014
Contact Information
2000 MARYLAND CT
WEST SACRAMENTO, CA
ZIP 95691
Phone: (916) 212-1917
NPPES record last updated: September 22, 2025. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Female
- Occupational Therapy Assistant
About VALERIE WELK
This page provides the complete NPI Profile along with additional information for Valerie Welk, a provider established in West Sacramento, California with a medical specialization in Occupational Therapy Assistant. The healthcare provider is registered in the NPI registry with number 1538586219 assigned on March 2014. The practitioner's primary taxonomy code is 224Z00000X with license number 2799 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1538586219
- Provider Name
- VALERIE WELK MA
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 2000 MARYLAND CT WEST SACRAMENTO, CA 95691
- Location Phone
- (916) 212-1917
- Mailing Address
- 2000 MARYLAND CT WEST SACRAMENTO, CA 95691
- Mailing Phone
- (916) 212-1917
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-19-2014
- Last Update Date
- 09-22-2025
- Code Navigator
Location Map
Secondary Locations
- 718 Alhambra Blvd
Sacramento, CA 95816
(916) 212-1917
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 Therapy Assistant
- Taxonomy Code
- 224Z00000X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- 2799
- License State
- CA
- Taxonomy Description
- An occupational therapy assistant is a person who has graduated from an occupational therapy assistant program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, has successfully completed a period of supervised fieldwork experience required by the accredited occupational therapy assistant program, has passed a nationally recognized entry-level examination for occupational therapy assistants, and fulfills state requirements for licensure, certification, or registration. An occupational therapy assistant provides interventions under the supervision of an occupational therapist which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapy assistants address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 106H00000X | Behavioral Health & Social Service Providers | Marriage & Family Therapist | AMFT157933 (CA) |
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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 1538586219, 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 1538586219, enumerated as an "individual" on March 19, 2014.
The provider is located at 2000 MARYLAND CT WEST SACRAMENTO, CA 95691 and the phone number is (916) 212-1917.
Occupational Therapy Assistant with taxonomy code 224Z00000X.
