JLK COUNSELING SERVICES PLLC
NPI 1891628160
Counselor - Professional in Tinley Park, IL

NPI Status: Active since June 05, 2026

Contact Information

16335 HARLEM AVE STE 150-4
TINLEY PARK, IL
ZIP 60477
Phone: (708) 407-9532
Fax: (708) 438-7085

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  • Organization
  • Counselor
  • Professional

About JLK COUNSELING SERVICES PLLC

This page provides the complete NPI Profile along with additional information for Jlk Counseling Services Pllc, a provider established in Tinley Park, Illinois operating as a Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1891628160 assigned on June 2026. The practitioner's primary taxonomy code is 101YP2500X. The provider is registered as an organization and their NPI record was last updated June 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Jessica Krakowsky (Lcpc)

NPI
1891628160
Provider Name
JLK COUNSELING SERVICES PLLC
Entity Type
Organization
Location Address
16335 HARLEM AVE STE 150-4 TINLEY PARK, IL 60477
Location Phone
(708) 407-9532
Location Fax
(708) 438-7085
Mailing Address
16335 HARLEM AVE STE 150-4 TINLEY PARK, IL 60477
Mailing Phone
(708) 407-9532
Mailing Fax
(708) 438-7085
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-05-2026
Last Update Date
06-05-2026
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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

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

JESSICA KRAKOWSKY

Authorized Official Title
LCPC
Authorized Official Phone
(708) 577-3288

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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 1891628160, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
1
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
0
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 9 → 18 → 9 6 → 12 → 3 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 2 + 2 + 1 + 6 + 1 + 1 + 2 + 24 = 60

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

The next multiple of ten after 60 is 60. The difference is the calculated check digit.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1891628160.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Counselor (Professional)
16335 HARLEM AVE STE 150-4
TINLEY PARK, IL 60477

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891628160, enumerated as an "organization" on June 05, 2026.

The provider is located at 16335 HARLEM AVE STE 150-4 TINLEY PARK, IL 60477 and the phone number is (708) 407-9532.

Counselor with taxonomy code 101YP2500X and a focus in Professional.