THE MIND MATTERS- LINDSEY SMITH, LCSW LLC
NPI 1265375414
Social Worker - Clinical in Arlington Heights, IL

NPI Status: Active since April 13, 2026

Contact Information

21 S EVERGREEN AVE
SUITE 200
ARLINGTON HEIGHTS, IL
ZIP 60005
Phone: (815) 522-1582

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  • Organization
  • Social Worker
  • Clinical

About THE MIND MATTERS- LINDSEY SMITH, LCSW LLC

This page provides the complete NPI Profile along with additional information for The Mind Matters- Lindsey Smith, Lcsw Llc, a provider established in Arlington Heights, Illinois operating as a Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1265375414 assigned on April 2026. The practitioner's primary taxonomy code is 1041C0700X. The provider is registered as an organization and their NPI record was last updated April 2026. 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 Mrs. Lindsey Smith Lcsw (Licensed Clinical Social Worker)

NPI
1265375414
Provider Name
THE MIND MATTERS- LINDSEY SMITH, LCSW LLC
Entity Type
Organization
Location Address
21 S EVERGREEN AVE SUITE 200 ARLINGTON HEIGHTS, IL 60005
Location Phone
(815) 522-1582
Mailing Address
21 S EVERGREEN AVE SUITE 200 PMB1010 ARLINGTON HEIGHTS, IL 60005
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
04-13-2026
Last Update Date
04-22-2026
Code Navigator

A clinical social worker like The Mind Matters- Lindsey Smith, Lcsw Llc is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.

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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

Social Worker Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

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

MRS. LINDSEY SMITH LCSW

Authorized Official Title
LICENSED CLINICAL SOCIAL WORKER
Authorized Official Phone
(815) 522-1582

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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 1265375414, 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 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
2
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
5
Unchanged
Pos 5
3
Doubled → 6
Pos 6
7
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
4
Unchanged
Pos 9
1
Doubled → 2
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 6 → 12 → 3 3 → 6 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 2 + 5 + 6 + 7 + 1 + 0 + 4 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1265375414.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1265375414, enumerated as an "organization" on April 13, 2026.

The provider is located at 21 S EVERGREEN AVE SUITE 200 ARLINGTON HEIGHTS, IL 60005 and the phone number is (815) 522-1582.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.