DR. PORTER TODD SWARTZ OD
NPI 1164385662
Optometrist in Chippewa Falls, WI

NPI Status: Active since December 03, 2025

Contact Information

3022 COMMERCIAL BLVD
CHIPPEWA FALLS, WI
ZIP 54729
Phone: (715) 726-1671

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  • Individual
  • Male
  • Optometrist

About PORTER SWARTZ

This page provides the complete NPI Profile along with additional information for Porter Swartz, a provider established in Chippewa Falls, Wisconsin with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1164385662 assigned on December 2025. The practitioner's primary taxonomy code is 152W00000X with license number 4111-35 (WI). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1164385662
Provider Name
DR. PORTER TODD SWARTZ OD
Gender
Male
Entity Type
Individual
Location Address
3022 COMMERCIAL BLVD CHIPPEWA FALLS, WI 54729
Location Phone
(715) 726-1671
Mailing Address
3022 COMMERCIAL BLVD CHIPPEWA FALLS, WI 54729
Mailing Phone
(715) 726-1671
Is Sole Proprietor?
No
Enumeration Date
12-03-2025
Last Update Date
12-03-2025
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Location Map

Secondary Locations

  • 943 W Clairemont Ave
    Eau Claire, WI 54701
    (715) 832-7723
  • 2806 Woodman Dr
    Altoona, WI 54720
    (534) 444-2961

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.
4111-35
License State
WI
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 1164385662, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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

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 + 6 + 8 + 1 + 0 + 6 + 1 + 2 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1164385662.

Other Providers at the Same Location


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

Eyewear Supplier
3022 COMMERCIAL BLVD
CHIPPEWA FALLS, WI 54729

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164385662, enumerated as an "individual" on December 03, 2025.

The provider is located at 3022 COMMERCIAL BLVD CHIPPEWA FALLS, WI 54729 and the phone number is (715) 726-1671.

Optometrist with taxonomy code 152W00000X.