GARY E BONN M.D.
NPI 1558540591
Ophthalmology in Ottawa, ON

NPI Status: Active since October 26, 2007

Contact Information

105-1335 CARLING AVENUE
OTTAWA, ON
ZIP K1Y4P
Phone: (613) 729-8600

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  • Individual
  • Male
  • Ophthalmology

About GARY BONN

This page provides the complete NPI Profile along with additional information for Gary Bonn, a provider established in Ottawa, with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1558540591 assigned on October 2007. The practitioner's primary taxonomy code is 207W00000X with license number 39723 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1558540591
Provider Name
GARY E BONN M.D.
Gender
Male
Entity Type
Individual
Location Address
105-1335 CARLING AVENUE OTTAWA, ON K1Y4P
Location Phone
(613) 729-8600
Mailing Address
12 WINSLOW COURT OTTAWA, ON K2B8H
Mailing Phone
(613) 729-8600
Is Sole Proprietor?
No
Enumeration Date
10-26-2007
Last Update Date
10-26-2007
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Ophthalmologists like Gary Bonn 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.

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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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
39723
License State
MA
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 1558540591, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
5
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
4
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
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 5 → 10 → 1 5 → 10 → 1 0 → 0 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 1 + 0 + 4 + 0 + 5 + 1 + 8 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1558540591.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558540591, enumerated as an "individual" on October 26, 2007.

The provider is located at 105-1335 CARLING AVENUE OTTAWA, ON K1Y4P and the phone number is (613) 729-8600.

Ophthalmology with taxonomy code 207W00000X.