DR. COURTNEY L. DIRKSEN PH.D.
NPI 1699815985
Clinical Neuropsychologist in Arlington Heights, IL

NPI Status: Active since February 07, 2007

Contact Information

855 E GOLF RD
SUITE 2139
ARLINGTON HEIGHTS, IL
ZIP 60005
Phone: (847) 357-9158
Fax: (847) 357-9203

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  • Individual
  • Female
  • Clinical Neuropsychologist

About COURTNEY DIRKSEN

This page provides the complete NPI Profile along with additional information for Courtney Dirksen, a provider established in Arlington Heights, Illinois with a medical specialization in Clinical Neuropsychologist. The healthcare provider is registered in the NPI registry with number 1699815985 assigned on February 2007. The practitioner's primary taxonomy code is 103G00000X with license number 071-006894 (IL). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1699815985
Provider Name
DR. COURTNEY L. DIRKSEN PH.D.
Gender
Female
Entity Type
Individual
Location Address
855 E GOLF RD SUITE 2139 ARLINGTON HEIGHTS, IL 60005
Location Phone
(847) 357-9158
Location Fax
(847) 357-9203
Mailing Address
855 E GOLF RD STE 2139 ARLINGTON HEIGHTS, IL 60005
Mailing Phone
(847) 357-9158
Mailing Fax
(847) 357-9203
Is Sole Proprietor?
No
Enumeration Date
02-07-2007
Last Update Date
04-14-2026
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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

Clinical Neuropsychologist

Taxonomy Code
103G00000X
Type
Behavioral Health & Social Service Providers
License No.
071-006894
License State
IL
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
1637952OTHER (01)ILBCBS OF ILLINOIS

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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 1699815985, we treat the final digit (5) 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 5).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 8 + 9 + 1 + 6 + 1 + 1 + 0 + 9 + 1 + 6 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1699815985.

Other Providers at the Same Location


The following 17 providers are registered at the same or a nearby location.

Family Medicine
855 E GOLF RD, STE 2133
ARLINGTON HEIGHTS, IL 60005
Home Health
855 E GOLF RD, SUITE 2133
ARLINGTON HEIGHTS, IL 60005
Clinical Neuropsychologist
855 E GOLF RD, SUITE 1127
ARLINGTON HEIGHTS, IL 60005
Home Health
855 E GOLF RD, STE. 2133
ARLINGTON HEIGHTS, IL 60005
Physician Assistant
855 E GOLF RD, SUITE 2133
ARLINGTON HEIGHTS, IL 60005
Family Medicine
855 E GOLF RD, SUITE 2133
ARLINGTON HEIGHTS, IL 60005
Registered Nurse (Administrator)
855 E GOLF RD, SUITE 2134
ARLINGTON HEIGHTS, IL 60005
Clinic/Center (Primary Care)
855 E GOLF RD, SUITE 2133
ARLINGTON HEIGHTS, IL 60005
Home Health
855 E GOLF RD, SUITE 2138
ARLINGTON HEIGHTS, IL 60005
Clinical Neuropsychologist
855 E GOLF RD, 2139
ARLINGTON HEIGHTS, IL 60005
In Home Supportive Care
855 E GOLF RD, SUITE 2132
ARLINGTON HEIGHTS, IL 60005
Acupuncturist
855 E GOLF RD, SUIT 2135
ARLINGTON HEIGHTS, IL 60005
Acupuncturist
855 E GOLF RD, SUIT 2135
ARLINGTON HEIGHTS, IL 60005
Acupuncturist
855 E GOLF RD, SUITE 2137
ARLINGTON HEIGHTS, IL 60005
Clinical Medical Laboratory
855 E GOLF RD, SUITE 2140
ARLINGTON HEIGHTS, IL 60005
Registered Nurse
855 E GOLF RD
ARLINGTON HEIGHTS, IL 60005
Physical Therapist
855 E GOLF RD, SUITE 2133
ARLINGTON HEIGHTS, IL 60005

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1699815985, enumerated as an "individual" on February 07, 2007.

The provider is located at 855 E GOLF RD SUITE 2139 ARLINGTON HEIGHTS, IL 60005 and the phone number is (847) 357-9158.

Clinical Neuropsychologist with taxonomy code 103G00000X.

The provider might be accepting Accepts: Blue Cross Blue Shield, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.