MICHAEL VALENTI
NPI 1558683557
Technician/Technologist - Optician in Shirley, NY
NPI Status: Active since February 18, 2010
Contact Information
999 MONTAUK HWY UNIT 3
SHIRLEY, NY
ZIP 11967
Phone: (631) 399-6992
NPPES record last updated: February 18, 2010. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Male
- Technician/Technologist
- Optician
About MICHAEL VALENTI
This page provides the complete NPI Profile along with additional information for Michael Valenti, a provider established in Shirley, New York with a medical specialization in Technician/technologist, focusing in optician . The healthcare provider is registered in the NPI registry with number 1558683557 assigned on February 2010. The practitioner's primary taxonomy code is 156FX1800X with license number 007252 (NY). The provider is registered as an individual and his NPI record was last updated 16 years ago.
- NPI
- 1558683557
- Provider Name
- MICHAEL VALENTI
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 999 MONTAUK HWY UNIT 3 SHIRLEY, NY 11967
- Location Phone
- (631) 399-6992
- Mailing Address
- 999 MONTAUK HWY UNIT 3 SHIRLEY, NY 11967
- Mailing Phone
- (631) 399-6992
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-18-2010
- Last Update Date
- 02-18-2010
- 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
Technician/Technologist Optician
- Taxonomy Code
- 156FX1800X
- Type
- Eye and Vision Services Providers
- License No.
- 007252
- 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 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 1558683557, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 63 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 4 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1558683557, enumerated as an "individual" on February 18, 2010.
The provider is located at 999 MONTAUK HWY UNIT 3 SHIRLEY, NY 11967 and the phone number is (631) 399-6992.
Technician/Technologist with taxonomy code 156FX1800X and a focus in Optician.
