CERMAK OPTICAL, INC
NPI 1821175498
Eyewear Supplier in Berwyn, IL
NPI Status: Active since November 01, 2006
Contact Information
7120 CERMAK RD
BERWYN, IL
ZIP 60402
Phone: (708) 788-2400
Fax: (708) 788-3472
- Organization
- Eyewear Supplier
About CERMAK OPTICAL, INC
This page provides the complete NPI Profile along with additional information for Cermak Optical, Inc, a provider established in Berwyn, Illinois operating as a Eyewear Supplier. The healthcare provider is registered in the NPI registry with number 1821175498 assigned on November 2006. The practitioner's primary taxonomy code is 332H00000X with license number 28154982 (IL). The provider is registered as an organization and their NPI record was last updated 6 years ago. The authorized official of this NPI record is Ronald S Weiss Md (President)
- NPI
- 1821175498
- Provider Name
- CERMAK OPTICAL, INC
- Entity Type
- Organization
- Location Address
- 7120 CERMAK RD BERWYN, IL 60402
- Location Phone
- (708) 788-2400
- Location Fax
- (708) 788-3472
- Mailing Address
- 7120 CERMAK RD BERWYN, IL 60402
- Mailing Phone
- (708) 788-2400
- Mailing Fax
- (708) 788-3472
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 11-01-2006
- Last Update Date
- 08-22-2020
- 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
- License No.
- 28154982
- License State
- IL
- Taxonomy Description
- An organization that provides spectacles, contact lenses, and other vision enhancement devices prescribed by an optometrist or ophthalmologist.
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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 1821175498, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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 62 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1821175498, enumerated as an "organization" on November 01, 2006.
The provider is located at 7120 CERMAK RD BERWYN, IL 60402 and the phone number is (708) 788-2400.
Eyewear Supplier with taxonomy code 332H00000X.
