GERALD HORN
NPI 1336364900
Ophthalmology in Schaumburg, IL

NPI Status: Active since April 17, 2007

Contact Information

999 N PLAZA DR
STE 100
SCHAUMBURG, IL
ZIP 60173
Phone: (847) 413-2110

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  • Individual
  • Male
  • Ophthalmology

About GERALD HORN

This page provides the complete NPI Profile along with additional information for Gerald Horn, a provider established in Schaumburg, Illinois with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1336364900 assigned on April 2007. The practitioner's primary taxonomy code is 207W00000X with license number 36058055 (IL). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1336364900
Provider Name
GERALD HORN
Gender
Male
Entity Type
Individual
Location Address
999 N PLAZA DR STE 100 SCHAUMBURG, IL 60173
Location Phone
(847) 413-2110
Mailing Address
7840 MONTGOMERY RD CINCINNATI, OH 45236
Is Sole Proprietor?
No
Enumeration Date
04-17-2007
Last Update Date
07-08-2007
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Ophthalmologists like Gerald Horn specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
36058055
License State
IL
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

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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 1336364900, 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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
3
Doubled → 6
Pos 6
6
Unchanged
Pos 7
4
Doubled → 8
Pos 8
9
Unchanged
Pos 9
0
Doubled → 0
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 3 → 6 3 → 6 4 → 8 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 6 + 6 + 8 + 9 + 0 + 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 1336364900.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Dentist (Endodontics)
999 N PLAZA DR, STE 210
SCHAUMBURG, IL 60173
Psychologist (Clinical Child & Adolescent)
999 N PLAZA DR, SUITE 300
SCHAUMBURG, IL 60173
Counselor (Mental Health)
999 N PLAZA DR, SUITE 300
SCHAUMBURG, IL 60173
Psychologist
999 N PLAZA DR, SUITE 300
SCHAUMBURG, IL 60173
Chiropractor
999 N PLAZA DR, SUITE 115
SCHAUMBURG, IL 60173
Dietitian, Registered
999 N PLAZA DR, SUITE 115
SCHAUMBURG, IL 60173
Dietitian, Registered
999 N PLAZA DR, SUITE 115
SCHAUMBURG, IL 60173
Massage Therapist
999 N PLAZA DR, SUITE 115
SCHAUMBURG, IL 60173
Dietitian, Registered
999 N PLAZA DR, 120
SCHAUMBURG, IL 60173
Dentist
999 N PLAZA DR, SUITE #120
SCHAUMBURG, IL 60173
Ophthalmology
999 N PLAZA DR, SUITE 100
SCHAUMBURG, IL 60173
Chiropractor
999 N PLAZA DR
SCHAUMBURG, IL 60173
Dentist
999 N PLAZA DR, SUITE 350
SCHAUMBURG, IL 60173

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336364900, enumerated as an "individual" on April 17, 2007.

The provider is located at 999 N PLAZA DR STE 100 SCHAUMBURG, IL 60173 and the phone number is (847) 413-2110.

Ophthalmology with taxonomy code 207W00000X.