CLEAR COGNITION PLLC
NPI 1679371272
Clinical Neuropsychologist in Libertyville, IL

NPI Status: Active since March 07, 2025

Contact Information

1800 HOLLISTER DR STE G10
LIBERTYVILLE, IL
ZIP 60048
Phone: (847) 786-5366

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  • Organization
  • Clinical Neuropsychologist

About CLEAR COGNITION PLLC

This page provides the complete NPI Profile along with additional information for Clear Cognition Pllc, a provider established in Libertyville, Illinois operating as a Clinical Neuropsychologist. The healthcare provider is registered in the NPI registry with number 1679371272 assigned on March 2025. The practitioner's primary taxonomy code is 103G00000X. The provider is registered as an organization and their NPI record was last updated one year ago. 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 Alia Ammar Phd (Owner)

NPI
1679371272
Provider Name
CLEAR COGNITION PLLC
Entity Type
Organization
Location Address
1800 HOLLISTER DR STE G10 LIBERTYVILLE, IL 60048
Location Phone
(847) 786-5366
Mailing Address
PO BOX 2257 CHESTERTON, IN 46304
Mailing Phone
(847) 786-5366
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-07-2025
Last Update Date
05-07-2025
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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

Clinical Neuropsychologist

Taxonomy Code
103G00000X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

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

ALIA AMMAR PHD

Authorized Official Title
OWNER
Authorized Official Phone
(847) 786-5366

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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 1679371272, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
6
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
9
Unchanged
Pos 5
3
Doubled → 6
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
2
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 7 → 14 → 5 3 → 6 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 + 6 + 1 + 4 + 9 + 6 + 7 + 2 + 2 + 1 + 4 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1679371272.

Other Providers at the Same Location


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

Clinical Neuropsychologist
1800 HOLLISTER DR STE G10
LIBERTYVILLE, IL 60048

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679371272, enumerated as an "organization" on March 07, 2025.

The provider is located at 1800 HOLLISTER DR STE G10 LIBERTYVILLE, IL 60048 and the phone number is (847) 786-5366.

Clinical Neuropsychologist with taxonomy code 103G00000X.