BRENDA DEL CASTILLO
NPI 1831605948
Contractor in Santa Monica, CA

NPI Status: Active since December 27, 2017

Contact Information

2644 30TH ST STE 100
SANTA MONICA, CA
ZIP 90405
Phone: (310) 314-6200
Fax: (310) 450-2024

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Contractor

About BRENDA DEL CASTILLO

This page provides the complete NPI Profile along with additional information for Brenda Del Castillo, a provider established in Santa Monica, California with a medical specialization in Contractor. The healthcare provider is registered in the NPI registry with number 1831605948 assigned on December 2017. The practitioner's primary taxonomy code is 171W00000X. The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI: 1831605948
Provider Name: BRENDA DEL CASTILLO
Gender: Female
Entity Type: Individual
Location Address: 2644 30TH ST STE 100 SANTA MONICA, CA 90405
Location Phone: (310) 314-6200
Location Fax: (310) 450-2024
Mailing Address: 1144 W 65TH PL LOS ANGELES, CA 90044
Is Sole Proprietor?: Yes
Enumeration Date: 12-27-2017
Last Update Date: 11-14-2022
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Location Map

Secondary Locations

1600 Main St Fl 2
Venice, CA 90291
(888) 859-0145

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: Contractor
Taxonomy Code: 171W00000X
Type: Other Service Providers
Taxonomy Description: For the purposes of the Health Care Provider Taxonomy, a contractor is limited to individuals who do construction or mechanical work to modify a patient's environment to accommodate a health condition. Contractors perform projects including, but not limited to, building wheelchair ramps, widening doorways, modifying personal vehicles, and making other improvements for patient access and movement. This code has no relation to a provider's employment status.

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	101YA0400X	Behavioral Health & Social Service Providers	Counselor Addiction (Substance Use Disorder)	C4721214 (CA)
2	101YP2500X	Behavioral Health & Social Service Providers	Counselor Professional	C4721214 (CA)

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 1831605948, 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.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 8

Check

Target digit

Regular digit Doubled digit Check digit

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.

1 → 2 3 → 6 6 → 12 → 3 5 → 10 → 1 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 8 + 6 + 1 + 1 + 2 + 0 + 1 + 0 + 9 + 8 + 24 = 62

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.

70 - 62 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1831605948.