MRS. GJAUDY N JOHN-WALLACE
NPI 1083569909
Counselor - Mental Health in Annandale, VA

NPI Status: Active since March 04, 2026

Contact Information

5105Q BACKLICK RD
ANNANDALE, VA
ZIP 22003
Phone: (703) 997-2737

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  • Individual
  • Female
  • Counselor
  • Mental Health

About GJAUDY JOHN-WALLACE

This page provides the complete NPI Profile along with additional information for Gjaudy John-wallace, a provider established in Annandale, Virginia with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1083569909 assigned on March 2026. The practitioner's primary taxonomy code is 101YM0800X with license number 070416920 (VA). The provider is registered as an individual and her NPI record was last updated March 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.

NPI
1083569909
Provider Name
MRS. GJAUDY N JOHN-WALLACE
Gender
Female
Entity Type
Individual
Location Address
5105Q BACKLICK RD ANNANDALE, VA 22003
Location Phone
(703) 997-2737
Mailing Address
5105Q BACKLICK RD ANNANDALE, VA 22003
Is Sole Proprietor?
Yes
Enumeration Date
03-04-2026
Last Update Date
03-04-2026
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A mental health counselor like Gjaudy John-wallace 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.
070416920
License State
VA

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.

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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 1083569909, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
0
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
9
Unchanged
Pos 9
0
Doubled → 0
Check
9
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 8 → 16 → 7 5 → 10 → 1 9 → 18 → 9 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 6 + 3 + 1 + 0 + 6 + 1 + 8 + 9 + 0 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1083569909.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Clinic/Center (Adult Mental Health)
5105Q BACKLICK RD
ANNANDALE, VA 22003
Clinic/Center (Rehabilitation, Substance Use Disorder)
5105Q BACKLICK RD
ANNANDALE, VA 22003
Counselor (Addiction (Substance Use Disorder))
5105Q BACKLICK RD
ANNANDALE, VA 22003
Counselor (Mental Health)
5105Q BACKLICK RD
ANNANDALE, VA 22003

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1083569909, enumerated as an "individual" on March 04, 2026.

The provider is located at 5105Q BACKLICK RD ANNANDALE, VA 22003 and the phone number is (703) 997-2737.

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