DR. CORINNE CHU O.D.
NPI 1720003767
Optometrist in Rockford, IL

NPI Status: Active since July 12, 2006

Contact Information

7200 HARRISON AVE
U265 CHERRYVALE MALL
ROCKFORD, IL
ZIP 61112
Phone: (815) 332-2223
Fax: (815) 332-4488

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  • Individual
  • Female
  • Optometrist

About CORINNE CHU

This page provides the complete NPI Profile along with additional information for Corinne Chu, a provider established in Rockford, Illinois with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1720003767 assigned on July 2006. The practitioner's primary taxonomy code is 152W00000X with license number IL9459 (IL). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1720003767
Provider Name
DR. CORINNE CHU O.D.
Gender
Female
Entity Type
Individual
Location Address
7200 HARRISON AVE U265 CHERRYVALE MALL ROCKFORD, IL 61112
Location Phone
(815) 332-2223
Location Fax
(815) 332-4488
Mailing Address
6728 APPELL LN CHERRY VALLEY, IL 61016
Mailing Phone
(815) 332-2223
Mailing Fax
(815) 332-4488
Is Sole Proprietor?
No
Enumeration Date
07-12-2006
Last Update Date
07-08-2007
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
IL9459
License State
IL
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

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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 1720003767, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
3
Doubled → 6
Pos 8
7
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 2 → 4 0 → 0 3 → 6 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 0 + 0 + 6 + 7 + 1 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1720003767.

Other Providers at the Same Location


The following 11 providers are registered at the same or a nearby location.

Optometrist
7200 HARRISON AVE, UNIT E265 CHERRYVALE MALL
ROCKFORD, IL 61112
Eyewear Supplier
7200 HARRISON AVE, CHERRYVALE MALL
ROCKFORD, IL 61112
Optometrist
7200 HARRISON AVE, F35
ROCKFORD, IL 61112
Optometrist
7200 HARRISON AVE
ROCKFORD, IL 61112
Eyewear Supplier
7200 HARRISON AVE, CHERRYVALE MALL
ROCKFORD, IL 61112
Optometrist
7200 HARRISON AVE
ROCKFORD, IL 61112
Optometrist
7200 HARRISON AVE, SUITE E265
ROCKFORD, IL 61112
Eyewear Supplier
7200 HARRISON AVE, MALL AT CHERRYVALE
ROCKFORD, IL 61112
Optometrist
7200 HARRISON AVE, UNIT E 265
ROCKFORD, IL 61112
Eyewear Supplier
7200 HARRISON AVE, STE F 35
ROCKFORD, IL 61112
Durable Medical Equipment & Medical Supplies
7200 HARRISON AVE, SPACE F35
ROCKFORD, IL 61112

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720003767, enumerated as an "individual" on July 12, 2006.

The provider is located at 7200 HARRISON AVE U265 CHERRYVALE MALL ROCKFORD, IL 61112 and the phone number is (815) 332-2223.

Optometrist with taxonomy code 152W00000X.