ZACHARY BROWN OD
NPI 1508671504
Optometrist in Saint Louis, MO

NPI Status: Active since February 08, 2025

Contact Information

7840 NATURAL BRIDGE RD
SAINT LOUIS, MO
ZIP 63121
Phone: (314) 516-5131

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Optometrist

About ZACHARY BROWN

This page provides the complete NPI Profile along with additional information for Zachary Brown, a provider established in Saint Louis, Missouri with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1508671504 assigned on February 2025. The practitioner's primary taxonomy code is 152W00000X with license number 2026028769 (MO). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI: 1508671504
Provider Name: ZACHARY BROWN OD
Gender: Male
Entity Type: Individual
Location Address: 7840 NATURAL BRIDGE RD SAINT LOUIS, MO 63121
Location Phone: (314) 516-5131
Mailing Address: 7840 NATURAL BRIDGE RD SAINT LOUIS, MO 63121
Is Sole Proprietor?: No
Enumeration Date: 02-08-2025
Last Update Date: 06-25-2026
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Location Map

Secondary Locations

4801 E Linwood Blvd
Kansas City, MO 64128
(816) 861-4700

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.: 2026028769
License State: MO
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	390200000X	Student, Health Care	Student in an Organized Health Care Education/Training Program

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 1508671504, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 0

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

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 0 → 0 6 → 12 → 3 1 → 2 0 → 0