MR. WILLIAM ETENBURN OPA-C
NPI 1518953363
Physician Assistant - Surgical in Grand Junction, CO

NPI Status: Active since September 26, 2005

Contact Information

627 25 1/2 RD
GRAND JUNCTION, CO
ZIP 81505
Phone: (970) 242-3535

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

Individual
Male
Physician Assistant
Surgical

About WILLIAM ETENBURN

This page provides the complete NPI Profile along with additional information for William Etenburn, a provider established in Grand Junction, Colorado with a medical specialization in Physician Assistant, focusing in surgical . The healthcare provider is registered in the NPI registry with number 1518953363 assigned on September 2005. The practitioner's primary taxonomy code is 363AS0400X with license number 3 (IL). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI: 1518953363
Provider Name: MR. WILLIAM ETENBURN OPA-C
Gender: Male
Entity Type: Individual
Location Address: 627 25 1/2 RD GRAND JUNCTION, CO 81505
Location Phone: (970) 242-3535
Mailing Address: 627 25 1/2 RD GRAND JUNCTION, CO 81505
Mailing Phone: (970) 242-3535
Is Sole Proprietor?: No
Enumeration Date: 09-26-2005
Last Update Date: 11-13-2007
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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: Physician Assistant Surgical
Taxonomy Code: 363AS0400X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 3
License State: IL

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 1518953363, 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 → 2

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 6

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 1 → 2 9 → 18 → 9 3 → 6 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 1 + 8 + 5 + 6 + 3 + 1 + 2 + 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 1518953363.