Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brett David Freitag, OD

Optometrist in Crystal Lake, IL · enumerated 2020.

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

National Provider Identifier

1164037495

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Brett David Freitag

Credential OD

Sex Male

Practice address 5006 Northwest Hwy, Crystal Lake, IL, 60014

Phone (779) 205-0315

Enumeration date Sep 14, 2020

Last updated in NPPES Sep 14, 2020

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 046011472 (IL) 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

Where does Brett Freitag practice?

The practice location on file with NPPES is in Crystal Lake, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Brett Freitag?

The National Provider Identifier (NPI) for Brett Freitag is 1164037495, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-14.