COLLIN CLARK
NPI 1750198594
Counselor - Professional in Evanston, IL

NPI Status: Active since December 16, 2024

Contact Information

800 AUSTIN ST
EVANSTON, IL
ZIP 60202
Phone: (847) 868-8664

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  • Individual
  • Male
  • Counselor
  • Professional

About COLLIN CLARK

This page provides the complete NPI Profile along with additional information for Collin Clark, a provider established in Evanston, Illinois with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1750198594 assigned on December 2024. The practitioner's primary taxonomy code is 101YP2500X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1750198594
Provider Name
COLLIN CLARK
Gender
Male
Entity Type
Individual
Location Address
800 AUSTIN ST EVANSTON, IL 60202
Location Phone
(847) 868-8664
Mailing Address
800 AUSTIN ST # 312 EVANSTON, IL 60202
Mailing Phone
(847) 868-8664
Is Sole Proprietor?
No
Enumeration Date
12-16-2024
Last Update Date
12-16-2024
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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

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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 1750198594, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
7
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
9
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
5
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 5 → 10 → 1 1 → 2 8 → 16 → 7 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 0 + 0 + 2 + 9 + 1 + 6 + 5 + 1 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1750198594.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Hematology & Oncology)
800 AUSTIN ST, STE 557
EVANSTON, IL 60202
Pediatrics
800 AUSTIN ST, SUITE 504 W
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 501
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 408
EVANSTON, IL 60202
Podiatrist (Foot & Ankle Surgery)
800 AUSTIN ST, SUITE #611
EVANSTON, IL 60202
Ophthalmology
800 AUSTIN ST, SUITE 401W
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 163
EVANSTON, IL 60202
Family Medicine
800 AUSTIN ST, SUITE 166 EAST TOWER
EVANSTON, IL 60202
Internal Medicine (Cardiovascular Disease)
800 AUSTIN ST, WEST TOWER SUITE 602
EVANSTON, IL 60202
Urology
800 AUSTIN ST, STE 569 EAST TOWER
EVANSTON, IL 60202
Obstetrics & Gynecology
800 AUSTIN ST, #354 EAST TOWER
EVANSTON, IL 60202
Ophthalmology
800 AUSTIN ST, SUITE 507
EVANSTON, IL 60202
Ophthalmology
800 AUSTIN ST, SUITE 360 EAST TOWER
EVANSTON, IL 60202
Specialist
800 AUSTIN ST, SUITE 607
EVANSTON, IL 60202
Obstetrics & Gynecology (Obstetrics)
800 AUSTIN ST, STE 611
EVANSTON, IL 60202
Internal Medicine (Rheumatology)
800 AUSTIN ST, SUITE 208
EVANSTON, IL 60202
Internal Medicine (Cardiovascular Disease)
800 AUSTIN ST, SUITE 454 EAST TOWER
EVANSTON, IL 60202
Family Medicine
800 AUSTIN ST
EVANSTON, IL 60202
Dentist (General Practice)
800 AUSTIN ST, SUITE 506 WEST TOWER
EVANSTON, IL 60202
Orthopaedic Surgery
800 AUSTIN ST, EAST TOWER, SUITE 357
EVANSTON, IL 60202

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1750198594, enumerated as an "individual" on December 16, 2024.

The provider is located at 800 AUSTIN ST EVANSTON, IL 60202 and the phone number is (847) 868-8664.

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