RACHEL GRDEN LGSW
NPI 1851665269
Counselor - School in Havre De Grace, MD

NPI Status: Active since March 02, 2012

Contact Information

626 REVOLUTION ST
HAVRE DE GRACE, MD
ZIP 21078
Phone: (410) 939-8744

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

Individual
Female
Counselor
School

About RACHEL GRDEN

This page provides the complete NPI Profile along with additional information for Rachel Grden, a provider established in Havre De Grace, Maryland with a medical specialization in Counselor, focusing in school . The healthcare provider is registered in the NPI registry with number 1851665269 assigned on March 2012. The practitioner's primary taxonomy code is 101YS0200X with license number 15066 (MD). The provider is registered as an individual and her NPI record was last updated 14 years ago.

NPI: 1851665269
Provider Name: RACHEL GRDEN LGSW
Gender: Female
Entity Type: Individual
Location Address: 626 REVOLUTION ST HAVRE DE GRACE, MD 21078
Location Phone: (410) 939-8744
Mailing Address: 1303 BARTLEY PL BELCAMP, MD 21017
Mailing Phone: (410) 688-3888
Is Sole Proprietor?: Yes
Enumeration Date: 03-02-2012
Last Update Date: 03-02-2012
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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 School
Taxonomy Code: 101YS0200X
Type: Behavioral Health & Social Service Providers
License No.: 15066
License State: MD

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 1851665269, 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

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 5 → 10 → 1 6 → 12 → 3 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 1 + 2 + 6 + 1 + 0 + 2 + 1 + 2 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1851665269.