RACHEL M CLARK
NPI 1194679449
Denturist in Grand Ronde, OR

NPI Status: Active since February 24, 2026

Contact Information

9605 GRAND RONDE RD
GRAND RONDE, OR
ZIP 97347
Phone: (503) 879-2020
Fax: (503) 879-2071

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

Individual
Female
Denturist

About RACHEL CLARK

This page provides the complete NPI Profile along with additional information for Rachel Clark, a provider established in Grand Ronde, Oregon with a medical specialization in Denturist. The healthcare provider is registered in the NPI registry with number 1194679449 assigned on February 2026. The practitioner's primary taxonomy code is 122400000X with license number DT-DO-10152487 (OR). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI: 1194679449
Provider Name: RACHEL M CLARK
Gender: Female
Entity Type: Individual
Location Address: 9605 GRAND RONDE RD GRAND RONDE, OR 97347
Location Phone: (503) 879-2020
Location Fax: (503) 879-2071
Mailing Address: 9605 GRAND RONDE RD GRAND RONDE, OR 97347
Mailing Phone: (503) 879-2020
Mailing Fax: (503) 879-2071
Is Sole Proprietor?: No
Enumeration Date: 02-24-2026
Last Update Date: 02-24-2026
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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: Denturist
Taxonomy Code: 122400000X
Type: Dental Providers
License No.: DT-DO-10152487
License State: OR
Taxonomy Description: A denturist is a licensed professional that serves patients with removable dental prosthetic oral health needs. A licensed denturist is trained in removable dental prosthetics and the fabrication of such devices.

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 1194679449, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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 → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

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 9 → 18 → 9 6 → 12 → 3 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 8 + 4 + 1 + 2 + 7 + 1 + 8 + 4 + 8 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1194679449.