LINDA SULLIVAN LCPC
NPI 1063363067
Counselor - Professional in Chicago, IL

NPI Status: Active since February 05, 2026

Contact Information

609 N WELLS ST
CHICAGO, IL
ZIP 60654
Phone: (312) 266-0404
Fax: (312) 266-8169

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  • Individual
  • Female
  • Counselor
  • Professional

About LINDA SULLIVAN

This page provides the complete NPI Profile along with additional information for Linda Sullivan, a provider established in Chicago, Illinois with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1063363067 assigned on February 2026. The practitioner's primary taxonomy code is 101YP2500X with license number 180002984 (IL). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1063363067
Provider Name
LINDA SULLIVAN LCPC
Gender
Female
Entity Type
Individual
Location Address
609 N WELLS ST CHICAGO, IL 60654
Location Phone
(312) 266-0404
Location Fax
(312) 266-8169
Mailing Address
609 N WELLS ST CHICAGO, IL 60654
Mailing Phone
(312) 266-0404
Mailing Fax
(312) 266-8169
Is Sole Proprietor?
No
Enumeration Date
02-05-2026
Last Update Date
02-05-2026
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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
License No.
180002984
License State
IL

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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 1063363067, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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.

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

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 2 + 3 + 6 + 6 + 6 + 0 + 1 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1063363067.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Clinic/Center (Methadone)
609 N WELLS ST
CHICAGO, IL 60654
Counselor (Professional)
609 N WELLS ST
CHICAGO, IL 60654
Counselor (Professional)
609 N WELLS ST
CHICAGO, IL 60654
Licensed Practical Nurse
609 N WELLS ST
CHICAGO, IL 60654
Social Worker (Clinical)
609 N WELLS ST
CHICAGO, IL 60654

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1063363067, enumerated as an "individual" on February 05, 2026.

The provider is located at 609 N WELLS ST CHICAGO, IL 60654 and the phone number is (312) 266-0404.

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