CELIA CASTULO I LSW
NPI 1669265138
Social Worker in Merrionette Park, IL

NPI Status: Active since May 27, 2025

Contact Information

11560 S KEDZIE AVE STE 200
MERRIONETTE PARK, IL
ZIP 60803
Phone: (708) 974-5800
Fax: (708) 974-2498

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

Individual
Female
Social Worker

About CELIA CASTULO

This page provides the complete NPI Profile along with additional information for Celia Castulo, a provider established in Merrionette Park, Illinois with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1669265138 assigned on May 2025. The practitioner's primary taxonomy code is 104100000X with license number 150114524 (IL). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1669265138
Provider Name: CELIA CASTULO I LSW
Gender: Female
Entity Type: Individual
Location Address: 11560 S KEDZIE AVE STE 200 MERRIONETTE PARK, IL 60803
Location Phone: (708) 974-5800
Location Fax: (708) 974-2498
Mailing Address: 11560 S KEDZIE AVE STE 200 MERRIONETTE PARK, IL 60803
Mailing Phone: (708) 974-5800
Mailing Fax: (708) 974-2498
Is Sole Proprietor?: Yes
Enumeration Date: 05-27-2025
Last Update Date: 05-30-2025
Code Navigator

A social worker like Celia Castulo 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

Secondary Locations

2715 N Central Ave
Chicago, IL 60639
(773) 360-1389

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 No.: 150114524
License State: IL
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.

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 1669265138, 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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 6

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 6 → 12 → 3 2 → 4 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 4 + 6 + 1 + 0 + 1 + 6 + 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 1669265138.