MRS. RACHEL R FAHNESTOCK
NPI 1871777540
Community Based Residential Treatment Facility, Mental Illness in Arvada, CO

NPI Status: Active since December 18, 2007

Contact Information

12751 W 56TH PL
ARVADA, CO
ZIP 80002
Phone: (303) 424-4136

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

Individual
Female
Community Based Residential Treatment Fa...

About RACHEL FAHNESTOCK

This page provides the complete NPI Profile along with additional information for Rachel Fahnestock, a provider established in Arvada, Colorado with a medical specialization in Community Based Residential Treatment Facility, Mental Illness. The healthcare provider is registered in the NPI registry with number 1871777540 assigned on December 2007. The practitioner's primary taxonomy code is 320800000X. The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI: 1871777540
Provider Name: MRS. RACHEL R FAHNESTOCK
Other Name: MISS RACHEL R ZINN
Other Name Type: Former Name (1)
Gender: Female
Entity Type: Individual
Location Address: 12751 W 56TH PL ARVADA, CO 80002
Location Phone: (303) 424-4136
Mailing Address: 4851 INDEPENDENCE ST SUITE 200 WHEAT RIDGE, CO 80033
Mailing Phone: (303) 425-0300
Mailing Fax
Is Sole Proprietor?: Yes
Enumeration Date: 12-18-2007
Last Update Date: 12-18-2007
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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: Community Based Residential Treatment Facility, Mental Illness
Taxonomy Code: 320800000X
Type: Residential Treatment Facilities
Taxonomy Description: A home-like residential facility providing psychiatric treatment and psycho/social rehabilitative services to individuals diagnosed with mental illness.

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 1871777540, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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 → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 8

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 7 → 14 → 5 7 → 14 → 5 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 1 + 4 + 7 + 1 + 4 + 5 + 8 + 24 = 70

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

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

70 - 70 = 0

This NPI is valid

The calculated check digit is 0, which matches the last digit of 1871777540.