DR. RUSSELL G KNAPP M.D.
NPI 1366470254
Ophthalmology in Tonawanda, NY

NPI Status: Active since June 29, 2006

Contact Information

1890 COLVIN BLVD
TONAWANDA, NY
ZIP 14150
Phone: (716) 837-5200
Fax: (716) 837-8750

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  • Individual
  • Male
  • Ophthalmology

About RUSSELL KNAPP

This page provides the complete NPI Profile along with additional information for Russell Knapp, a provider established in Tonawanda, New York with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1366470254 assigned on June 2006. The practitioner's primary taxonomy code is 207W00000X with license number 106385 (NY). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1366470254
Provider Name
DR. RUSSELL G KNAPP M.D.
Gender
Male
Entity Type
Individual
Location Address
1890 COLVIN BLVD TONAWANDA, NY 14150
Location Phone
(716) 837-5200
Location Fax
(716) 837-8750
Mailing Address
1890 COLVIN BLVD TONAWANDA, NY 14150
Mailing Phone
(716) 837-5200
Mailing Fax
(716) 837-8750
Is Sole Proprietor?
Yes
Enumeration Date
06-29-2006
Last Update Date
07-08-2007
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Ophthalmologists like Russell Knapp 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.
106385
License State
NY
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 1366470254, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
6
Doubled → 12 → 1 + 2
Pos 4
6
Unchanged
Pos 5
4
Doubled → 8
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
2
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
4
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 6 → 12 → 3 4 → 8 0 → 0 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 2 + 6 + 8 + 7 + 0 + 2 + 1 + 0 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1366470254.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Ophthalmology
1890 COLVIN BLVD
TONAWANDA, NY 14150

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366470254, enumerated as an "individual" on June 29, 2006.

The provider is located at 1890 COLVIN BLVD TONAWANDA, NY 14150 and the phone number is (716) 837-5200.

Ophthalmology with taxonomy code 207W00000X.