GABRIELLE SCHWARTZ
NPI 1639001357
Counselor in New York, NY

NPI Status: Active since May 29, 2026

Contact Information

200 W 26TH ST APT 411
NEW YORK, NY
ZIP 10001
Phone: (215) 808-7090

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  • Individual
  • Counselor

About GABRIELLE SCHWARTZ

This page provides the complete NPI Profile along with additional information for Gabrielle Schwartz, a provider established in New York, New York operating as a Counselor. The healthcare provider is registered in the NPI registry with number 1639001357 assigned on May 2026. The practitioner's primary taxonomy code is 101Y00000X. The provider is registered as an individual and their NPI record was last updated May 2026.

NPI
1639001357
Provider Name
GABRIELLE SCHWARTZ
Gender
Entity Type
Individual
Location Address
200 W 26TH ST APT 411 NEW YORK, NY 10001
Location Phone
(215) 808-7090
Mailing Address
200 W 26TH ST APT 411 NEW YORK, NY 10001
Is Sole Proprietor?
No
Enumeration Date
05-29-2026
Last Update Date
05-29-2026
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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

Counselor

Taxonomy Code
101Y00000X
Type
Behavioral Health & Social Service Providers
License State
NY
Taxonomy Description
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

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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 1639001357, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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
6
Unchanged
Pos 3
3
Doubled → 6
Pos 4
9
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
1
Doubled → 2
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
7
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 + 6 + 6 + 9 + 0 + 0 + 2 + 3 + 1 + 0 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1639001357.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639001357, enumerated as an "individual" on May 29, 2026.

The provider is located at 200 W 26TH ST APT 411 NEW YORK, NY 10001 and the phone number is (215) 808-7090.

Counselor with taxonomy code 101Y00000X.