PAULINE JOSEFINA CASTRO
NPI 1487581476
Licensed Vocational Nurse in Fresno, CA

NPI Status: Active since May 05, 2026

Contact Information

3855 N WEST AVE STE 103-110
FRESNO, CA
ZIP 93705
Phone: (559) 334-6433
Fax: (559) 272-0984

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

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

Individual
Female
Licensed Vocational Nurse

About PAULINE CASTRO

This page provides the complete NPI Profile along with additional information for Pauline Castro, a provider established in Fresno, California with a medical specialization in Licensed Vocational Nurse. The healthcare provider is registered in the NPI registry with number 1487581476 assigned on May 2026. The practitioner's primary taxonomy code is 164X00000X with license number 744059 (CA). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI: 1487581476
Provider Name: PAULINE JOSEFINA CASTRO
Gender: Female
Entity Type: Individual
Location Address: 3855 N WEST AVE STE 103-110 FRESNO, CA 93705
Location Phone: (559) 334-6433
Location Fax: (559) 272-0984
Mailing Address: 3855 N WEST AVE STE 110 FRESNO, CA 93705
Mailing Phone: (559) 334-6433
Mailing Fax: (559) 272-0984
Is Sole Proprietor?: No
Enumeration Date: 05-05-2026
Last Update Date: 05-13-2026
Code Navigator

Location Map

Secondary Locations

275 S Madera Ave Ste 403404
Kerman, CA 93630
(855) 343-1057
1311 11th St
Reedley, CA 93654
(855) 343-1057
386 Coalinga Plz
Coalinga, CA 93210
(855) 343-1057
3800 McCall Ave Ste 104
Selma, CA 93662
(855) 343-1057
1690 W Shaw Ave Ste 201
Fresno, CA 93711
(855) 343-1057
3636 N 1st St Ste 162
Fresno, CA 93726
(559) 476-2166
225 S. Academy Ave
Sanger, CA 93657
(855) 343-1057
3636 N 1st St Ste 120
Fresno, CA 93726
(559) 476-2166
380 Coalinga Plz
Coalinga, CA 93210
(855) 343-1057

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: Licensed Vocational Nurse
Taxonomy Code: 164X00000X
Type: Nursing Service Providers
License No.: 744059
License State: CA
Taxonomy Description: A licensed vocational nurse with post-high school vocational training and practical experience in the provision of nursing care at a level less than that required for certification as a Registered Nurse. [An alternate term for licensed practical nurse arising from difference in occupational titles between states and post-high school training programs and institutions.] Requirements for education, experience, licensure, and job responsibilities vary among the states.

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 1487581476, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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 → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

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 8 → 16 → 7 5 → 10 → 1 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 6 + 7 + 1 + 0 + 8 + 2 + 4 + 1 + 4 + 24 = 64

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1487581476.