Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mark Brezinka, OD

Optometrist in Columbus, MS · enumerated 2024.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1598517682

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark Brezinka

Credential OD

Sex Male

Practice address Columbus, MS, 39710

Phone (320) 630-5153

Fax (662) 434-2169

Enumeration date Apr 3, 2024

Last updated in NPPES Sep 1, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 3944 (MN) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Mark Brezinka's NPI record?

Cross-check NPI 1598517682 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598517682 active?

Yes, as of the latest NPPES snapshot, NPI 1598517682 is active (record last updated 2026-09-01).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-01.