COURTNEY IRWIN LPC
NPI 1215814462
Counselor - Mental Health in Mesa, AZ

NPI Status: Active since August 19, 2025

Contact Information

1017 S GILBERT RD STE 205
MESA, AZ
ZIP 85204
Phone: (602) 363-0629

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  • Individual
  • Female
  • Counselor
  • Mental Health

About COURTNEY IRWIN

This page provides the complete NPI Profile along with additional information for Courtney Irwin, a provider established in Mesa, Arizona with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1215814462 assigned on August 2025. The practitioner's primary taxonomy code is 101YM0800X with license number LPC-24091 (AZ). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1215814462
Provider Name
COURTNEY IRWIN LPC
Gender
Female
Entity Type
Individual
Location Address
1017 S GILBERT RD STE 205 MESA, AZ 85204
Location Phone
(602) 363-0629
Mailing Address
586 W 6TH ST TEMPE, AZ 85281
Mailing Phone
(630) 824-7099
Is Sole Proprietor?
No
Enumeration Date
08-19-2025
Last Update Date
08-19-2025
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A mental health counselor like Courtney Irwin provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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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 Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
LPC-24091
License State
AZ

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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 1215814462, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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
2
Unchanged
Pos 3
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
1
Unchanged
Pos 7
4
Doubled → 8
Pos 8
4
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 1 → 2 8 → 16 → 7 4 → 8 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 1 + 6 + 1 + 8 + 4 + 1 + 2 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1215814462.

Other Providers at the Same Location


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

Marriage & Family Therapist
1017 S GILBERT RD STE 205
MESA, AZ 85204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215814462, enumerated as an "individual" on August 19, 2025.

The provider is located at 1017 S GILBERT RD STE 205 MESA, AZ 85204 and the phone number is (602) 363-0629.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.