DUNCANVILLE OPTICAL
NPI 1679909477
Eyewear Supplier in Duncanville, TX

NPI Status: Active since September 25, 2013

Contact Information

533 W WHEATLAND RD
DUNCANVILLE, TX
ZIP 75116
Phone: (972) 298-5800

Get Directions Write a Review

  • Organization
  • Eyewear Supplier

About DUNCANVILLE OPTICAL

This page provides the complete NPI Profile along with additional information for Duncanville Optical, a provider established in Duncanville, Texas operating as a Eyewear Supplier. The healthcare provider is registered in the NPI registry with number 1679909477 assigned on September 2013. The practitioner's primary taxonomy code is 332H00000X. The provider is registered as an organization and their NPI record was last updated 13 years ago. The provider's is doing business as Duncanville Optical. The authorized official of this NPI record is Mr. Walter O Hackfeld (President)

NPI
1679909477
Provider Legal Name
CONWAL CORP
Other Organization Name
DUNCANVILLE OPTICAL
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
533 W WHEATLAND RD DUNCANVILLE, TX 75116
Location Phone
(972) 298-5800
Mailing Address
502 TOWNE PL DUNCANVILLE, TX 75116
Mailing Phone
(972) 754-0951
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-25-2013
Last Update Date
09-25-2013
Code Navigator

Location Map

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

Eyewear Supplier

Taxonomy Code
332H00000X
Type
Suppliers
Taxonomy Description
An organization that provides spectacles, contact lenses, and other vision enhancement devices prescribed by an optometrist or ophthalmologist.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

MR. WALTER O HACKFELD

Authorized Official Title
PRESIDENT
Authorized Official Phone
(972) 298-5800

Reviews for DUNCANVILLE OPTICAL

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1679909477, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).

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
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
7
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 9 → 18 → 9 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 1 + 8 + 0 + 1 + 8 + 4 + 1 + 4 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1679909477.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Technician/Technologist (Optician)
533 W WHEATLAND RD
DUNCANVILLE, TX 75116
Technician/Technologist (Optician)
533 W WHEATLAND RD
DUNCANVILLE, TX 75116

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679909477, enumerated as an "organization" on September 25, 2013.

The provider is located at 533 W WHEATLAND RD DUNCANVILLE, TX 75116 and the phone number is (972) 298-5800.

Eyewear Supplier with taxonomy code 332H00000X.