JOHN KATZER OD
NPI 1164453759
Optometrist in Topeka, KS

NPI Status: Active since July 05, 2006

Contact Information

2200 SW GAGE BLVD
TOPEKA, KS
ZIP 66622
Phone: (785) 350-3111

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  • Individual
  • Male
  • Optometrist

About JOHN KATZER

This page provides the complete NPI Profile along with additional information for John Katzer, a provider established in Topeka, Kansas with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1164453759 assigned on July 2006. The practitioner's primary taxonomy code is 152W00000X with license number 1706 (KS). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1164453759
Provider Name
JOHN KATZER OD
Gender
Male
Entity Type
Individual
Location Address
2200 SW GAGE BLVD TOPEKA, KS 66622
Location Phone
(785) 350-3111
Mailing Address
3739 THOMAS RD WELLSVILLE, KS 66092
Mailing Phone
(785) 883-2041
Is Sole Proprietor?
Yes
Enumeration Date
07-05-2006
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.
1706
License State
KS
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 1164453759, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 8 + 5 + 6 + 7 + 1 + 0 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1164453759.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Social Worker (Clinical)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Psychologist (Counseling)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Social Worker (Clinical)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Social Worker (Clinical)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Speech-Language Pathologist
2200 SW GAGE BLVD
TOPEKA, KS 66622
Psychiatry & Neurology (Psychiatry)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Social Worker (Clinical)
2200 SW GAGE BLVD, SOCIAL WORK SERVICE
TOPEKA, KS 66622
Physician Assistant (Surgical)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Psychiatry & Neurology (Psychiatry)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Nurse Anesthetist, Certified Registered
2200 SW GAGE BLVD
TOPEKA, KS 66622
Dietitian, Registered
2200 SW GAGE BLVD, BLUE TEAM/PC 11
TOPEKA, KS 66622
Social Worker
2200 SW GAGE BLVD
TOPEKA, KS 66622
Social Worker (Clinical)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Dentist (General Practice)
2200 SW GAGE BLVD, DENTAL SERVICES
TOPEKA, KS 66622
Psychiatry & Neurology (Psychiatry)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Social Worker (Clinical)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Social Worker (Clinical)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Pharmacist
2200 SW GAGE BLVD, 119
TOPEKA, KS 66622
Psychologist (Counseling)
2200 SW GAGE BLVD
TOPEKA, KS 66622
Occupational Therapist
2200 SW GAGE BLVD
TOPEKA, KS 66622

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164453759, enumerated as an "individual" on July 05, 2006.

The provider is located at 2200 SW GAGE BLVD TOPEKA, KS 66622 and the phone number is (785) 350-3111.

Optometrist with taxonomy code 152W00000X.