MR. MAHMOUD A HAYYAT OPTICIAN
NPI 1497161640
Technician/Technologist - Optician in Middlebury, VT

NPI Status: Active since July 09, 2014

Contact Information

1330 EXCHANGE ST
SUITE 101
MIDDLEBURY, VT
ZIP 05753
Phone: (802) 388-4456

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  • Individual
  • Male
  • Technician/Technologist
  • Optician

About MAHMOUD HAYYAT

This page provides the complete NPI Profile along with additional information for Mahmoud Hayyat, a provider established in Middlebury, Vermont with a medical specialization in Technician/technologist, focusing in optician . The healthcare provider is registered in the NPI registry with number 1497161640 assigned on July 2014. The practitioner's primary taxonomy code is 156FX1800X with license number 028.0000176 (VT). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI
1497161640
Provider Name
MR. MAHMOUD A HAYYAT OPTICIAN
Gender
Male
Entity Type
Individual
Location Address
1330 EXCHANGE ST SUITE 101 MIDDLEBURY, VT 05753
Location Phone
(802) 388-4456
Mailing Address
1330 EXCHANGE ST SUITE 101 MIDDLEBURY, VT 05753
Mailing Phone
(802) 388-4456
Is Sole Proprietor?
No
Enumeration Date
07-09-2014
Last Update Date
07-09-2014
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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

Technician/Technologist Optician

Taxonomy Code
156FX1800X
Type
Eye and Vision Services Providers
License No.
028.0000176
License State
VT
Taxonomy Description
Opticians help fit eyeglasses and contact lenses, following prescriptions from Ophthalmologists and Optometrists. They also help customers decide which eyeglass frame or contact lenses to buy.

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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 1497161640, 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
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
1
Doubled → 2
Pos 6
6
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
Unchanged
Pos 9
4
Doubled → 8
Check
0
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 1 → 2 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 2 + 6 + 2 + 6 + 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 1497161640.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Otolaryngology
1330 EXCHANGE ST, SUITE 202 PORTER ENT
MIDDLEBURY, VT 05753
Dentist (General Practice)
1330 EXCHANGE ST
MIDDLEBURY, VT 05753
Dentist (General Practice)
1330 EXCHANGE ST
MIDDLEBURY, VT 05753
Chiropractor
1330 EXCHANGE ST, STE 105
MIDDLEBURY, VT 05753
Chiropractor
1330 EXCHANGE ST, STE 105
MIDDLEBURY, VT 05753
Pediatrics
1330 EXCHANGE ST, MIDDLEBURY PEDIATRIC AND ADOLESCENT MEDICINE
MIDDLEBURY, VT 05753
Pediatrics (Adolescent Medicine)
1330 EXCHANGE ST, MIDDLEBURY PEDIATRIC AND ADOLESCENT AND MEDICINE
MIDDLEBURY, VT 05753
Pediatrics
1330 EXCHANGE ST, SUITE 201
MIDDLEBURY, VT 05753
Dentist (Pediatric Dentistry)
1330 EXCHANGE ST, SUITE 107
MIDDLEBURY, VT 05753
Chiropractor
1330 EXCHANGE ST, SUITE 105
MIDDLEBURY, VT 05753
Pediatrics
1330 EXCHANGE ST, SUITE 201
MIDDLEBURY, VT 05753
Nurse Practitioner (Family)
1330 EXCHANGE ST, SUITE 201
MIDDLEBURY, VT 05753
Eyewear Supplier
1330 EXCHANGE ST, SUITE 101
MIDDLEBURY, VT 05753
Chiropractor
1330 EXCHANGE ST, STE 105
MIDDLEBURY, VT 05753
Family Medicine
1330 EXCHANGE ST
MIDDLEBURY, VT 05753
Family Medicine
1330 EXCHANGE ST
MIDDLEBURY, VT 05753

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497161640, enumerated as an "individual" on July 09, 2014.

The provider is located at 1330 EXCHANGE ST SUITE 101 MIDDLEBURY, VT 05753 and the phone number is (802) 388-4456.

Technician/Technologist with taxonomy code 156FX1800X and a focus in Optician.