MINDSETT MENTAL HEALTH LLC
NPI 1396538633
Clinic/Center - Mental Health (Including Community Mental Health Center) in Fairfax, VA

NPI Status: Active since May 28, 2025

Contact Information

3900 JERMANTOWN RD STE 300
FAIRFAX, VA
ZIP 22030
Phone: (540) 530-4325
Fax: (540) 865-9013

NPI Profile Information
Primary Taxonomy
Authorized Official
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
Clinic/Center
Mental Health (Including Community Menta...

About MINDSETT MENTAL HEALTH LLC

This page provides the complete NPI Profile along with additional information for Mindsett Mental Health Llc, a provider established in Fairfax, Virginia operating as a Clinic/center, focusing in mental health (including community mental health center) . The healthcare provider is registered in the NPI registry with number 1396538633 assigned on May 2025. The practitioner's primary taxonomy code is 261QM0801X. The provider is registered as an organization and their NPI record was last updated February 2026. The authorized official of this NPI record is Ms. Natalie Austin Desseyn Aprn, Np (Owner, Nurse Practitioner)

NPI: 1396538633
Provider Name: MINDSETT MENTAL HEALTH LLC
Entity Type: Organization
Location Address: 3900 JERMANTOWN RD STE 300 FAIRFAX, VA 22030
Location Phone: (540) 530-4325
Location Fax: (540) 865-9013
Mailing Address: 3900 JERMANTOWN RD STE 300 FAIRFAX, VA 22030
Mailing Phone: (540) 530-4325
Mailing Fax: (540) 865-9013
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 05-28-2025
Last Update Date: 02-15-2026
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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: Clinic/Center Mental Health (Including Community Mental Health Center)
Taxonomy Code: 261QM0801X
Type: Ambulatory Health Care Facilities

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: MS. NATALIE AUSTIN DESSEYN APRN, NP
Authorized Official Title: OWNER, NURSE PRACTITIONER
Authorized Official Phone: (540) 797-0616

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 1396538633, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 6

Check

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 5 → 10 → 1 8 → 16 → 7 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 8 + 6 + 1 + 0 + 3 + 1 + 6 + 6 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3

This NPI is valid

The calculated check digit is 3, which matches the last digit of 1396538633.