LINDSAY CARROLL PLLC
NPI 1336021054
Counselor - Mental Health in Falls Church, VA

NPI Status: Active since July 23, 2025

Contact Information

300 N WASHINGTON ST
FALLS CHURCH, VA
ZIP 22046
Phone: (703) 828-7110

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  • Organization
  • Counselor
  • Mental Health

About LINDSAY CARROLL PLLC

This page provides the complete NPI Profile along with additional information for Lindsay Carroll Pllc, a provider established in Falls Church, Virginia operating as a Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1336021054 assigned on July 2025. The practitioner's primary taxonomy code is 101YM0800X. 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 Lindsay Carroll Lpc, Atr (Owner, Therapist)

NPI
1336021054
Provider Name
LINDSAY CARROLL PLLC
Entity Type
Organization
Location Address
300 N WASHINGTON ST FALLS CHURCH, VA 22046
Location Phone
(703) 828-7110
Mailing Address
3227 HOLLY BERRY CT FALLS CHURCH, VA 22042
Mailing Phone
(443) 398-4176
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-23-2025
Last Update Date
07-23-2025
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A mental health counselor like Lindsay Carroll Pllc 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

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

LINDSAY CARROLL LPC, ATR

Authorized Official Title
OWNER, THERAPIST
Authorized Official Phone
(443) 398-4176

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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 1336021054, 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 46. The final step is to find the difference between that total and the next multiple of ten (50 - 46 = 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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
0
Doubled → 0
Pos 6
2
Unchanged
Pos 7
1
Doubled → 2
Pos 8
0
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 3 → 6 0 → 0 1 → 2 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 0 + 2 + 2 + 0 + 1 + 0 + 24 = 46

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

The next multiple of ten after 46 is 50. The difference is the calculated check digit.

50 - 46 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1336021054.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Acupuncturist
300 N WASHINGTON ST, SUITE 302-A
FALLS CHURCH, VA 22046
Chiropractor
300 N WASHINGTON ST, SUITE 103
FALLS CHURCH, VA 22046
Psychologist (Clinical)
300 N WASHINGTON ST, SUITE 304A
FALLS CHURCH, VA 22046
Counselor (Mental Health)
300 N WASHINGTON ST, SUITE 102
FALLS CHURCH, VA 22046
Chiropractor
300 N WASHINGTON ST, #102
FALLS CHURCH, VA 22046
Acupuncturist
300 N WASHINGTON ST, SUITE 102
FALLS CHURCH, VA 22046
Community/Behavioral Health
300 N WASHINGTON ST, 102
FALLS CHURCH, VA 22046
Counselor
300 N WASHINGTON ST, SUITE 102
FALLS CHURCH, VA 22046
Chiropractor
300 N WASHINGTON ST, SUITE #103
FALLS CHURCH, VA 22046
Counselor (Mental Health)
300 N WASHINGTON ST, SUITE 102
FALLS CHURCH, VA 22046
Counselor (Mental Health)
300 N WASHINGTON ST, SUITE 102
FALLS CHURCH, VA 22046
Speech-Language Pathologist
300 N WASHINGTON ST
FALLS CHURCH, VA 22046
Counselor (Mental Health)
300 N WASHINGTON ST
FALLS CHURCH, VA 22046
Counselor (Mental Health)
300 N WASHINGTON ST
FALLS CHURCH, VA 22046
Psychologist (Clinical Child & Adolescent)
300 N WASHINGTON ST, SUITE 202
FALLS CHURCH, VA 22046

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336021054, enumerated as an "organization" on July 23, 2025.

The provider is located at 300 N WASHINGTON ST FALLS CHURCH, VA 22046 and the phone number is (703) 828-7110.

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