RAUL ANTONIO RUACHO CHW
NPI 1821917907
Social Worker in Ontario, CA
NPI Status: Active since July 13, 2026
Contact Information
437 N EUCLID AVE
ONTARIO, CA
ZIP 91762
Phone: (909) 635-6966
This NPI profile has been added to the NPI registry within the last 30 days.
NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.
- Individual
- Male
- Social Worker
About RAUL RUACHO
This page provides the complete NPI Profile along with additional information for Raul Ruacho, a provider established in Ontario, California with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1821917907 assigned on July 2026. The practitioner's primary taxonomy code is 104100000X. The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1821917907
- Provider Name
- RAUL ANTONIO RUACHO CHW
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 437 N EUCLID AVE ONTARIO, CA 91762
- Location Phone
- (909) 635-6966
- Mailing Address
- 437 N EUCLID AVE ONTARIO, CA 91762
- Mailing Phone
- (909) 635-6966
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-13-2026
- Last Update Date
- 07-13-2026
- Code Navigator
A social worker like Raul Ruacho helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.
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
- Taxonomy Code
- 104100000X
- Type
- Behavioral Health & Social Service Providers
- License State
- CA
- Taxonomy Description
- A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
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 | 171M00000X | Other Service Providers | Case Manager/Care Coordinator | (CA) |
| 2 | 174200000X | Other Service Providers | Meals |
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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 1821917907, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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 63 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.
ONTARIO, CA 91762
ONTARIO, CA 91762
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1821917907, enumerated as an "individual" on July 13, 2026.
The provider is located at 437 N EUCLID AVE ONTARIO, CA 91762 and the phone number is (909) 635-6966.
Social Worker with taxonomy code 104100000X.
