GREGORY FREIDUS
NPI 1013366202
Technician/Technologist - Optician in New York, NY

NPI Status: Active since June 08, 2016

Contact Information

45 7TH AVE
NEW YORK, NY
ZIP 10011
Phone: (917) 656-2290

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  • Individual
  • Male
  • Technician/Technologist
  • Optician

About GREGORY FREIDUS

This page provides the complete NPI Profile along with additional information for Gregory Freidus, a provider established in New York, New York with a medical specialization in Technician/technologist, focusing in optician . The healthcare provider is registered in the NPI registry with number 1013366202 assigned on June 2016. The practitioner's primary taxonomy code is 156FX1800X with license number C009255 (NY). The provider is registered as an individual and his NPI record was last updated 10 years ago.

NPI
1013366202
Provider Name
GREGORY FREIDUS
Gender
Male
Entity Type
Individual
Location Address
45 7TH AVE NEW YORK, NY 10011
Location Phone
(917) 656-2290
Mailing Address
175 W 90TH ST APT 9F NEW YORK, NY 10024
Is Sole Proprietor?
Yes
Enumeration Date
06-08-2016
Last Update Date
06-08-2016
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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.
C009255
License State
NY
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 1013366202, we treat the final digit (2) 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).

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
0
Unchanged
Pos 3
1
Doubled → 2
Pos 4
3
Unchanged
Pos 5
3
Doubled → 6
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
2
Unchanged
Pos 9
0
Doubled → 0
Check
2
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 3 → 6 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 2 + 3 + 6 + 6 + 1 + 2 + 2 + 0 + 24 = 48

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

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1013366202.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Eyewear Supplier
45 7TH AVE
NEW YORK, NY 10011

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1013366202, enumerated as an "individual" on June 08, 2016.

The provider is located at 45 7TH AVE NEW YORK, NY 10011 and the phone number is (917) 656-2290.

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