DR. STEVEN F VIEGAS M.D.
NPI 1659450286
Orthopaedic Surgery - Hand Surgery in Houston, TX

NPI Status: Active since November 03, 2006

Contact Information

11800 FM 1960 RD W
HOUSTON, TX
ZIP 77065
Phone: (281) 664-2107
Fax: (281) 955-5875

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

Individual
Male
Orthopaedic Surgery
Hand Surgery

About STEVEN VIEGAS

This page provides the complete NPI Profile along with additional information for Steven Viegas, a provider established in Houston, Texas with a medical specialization in Orthopaedic Surgery, focusing in hand surgery . The healthcare provider is registered in the NPI registry with number 1659450286 assigned on November 2006. The practitioner's primary taxonomy code is 207XS0106X with license number H7244 (TX). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI: 1659450286
Provider Name: DR. STEVEN F VIEGAS M.D.
Gender: Male
Entity Type: Individual
Location Address: 11800 FM 1960 RD W HOUSTON, TX 77065
Location Phone: (281) 664-2107
Location Fax: (281) 955-5875
Mailing Address: 11800 FM 1960 RD W HOUSTON, TX 77065
Mailing Phone: (281) 664-2107
Mailing Fax: (281) 955-5875
Is Sole Proprietor?: No
Enumeration Date: 11-03-2006
Last Update Date: 02-05-2015
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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: Orthopaedic Surgery Hand Surgery
Taxonomy Code: 207XS0106X
Type: Allopathic & Osteopathic Physicians
License No.: H7244
License State: TX
Taxonomy Description: An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.

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 1659450286, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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 → 8

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

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 4 → 8 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 8 + 5 + 0 + 2 + 1 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1659450286.