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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DR. MATTHEW WILLIAMS OD
NPI 1275454134
Optometrist in Chicago, IL

Active since July 24, 2026
227 E ONTARIO ST, CHICAGO, IL 60611(312) 643-2019 Get Directions Write a Review

NPPES record added: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 29, 2026, Jul 24, 2026 (2 updates tracked since 2026).

About Dr. Matthew Williams Od NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MATTHEW WILLIAMS OD (NPI 1275454134) is an individual optometrist in Chicago, Illinois, licensed in Illinois (046.012134) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1275454134
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. MATTHEW WILLIAMSCredential: OD
Location Address227 E ONTARIO STChicago, IL 60611-3385
Mailing Address711 W Brompton Ave Apt 48Chicago, IL 60657-1884 · Fax (312) 643-2040
Phone(312) 643-2019
Sole ProprietorNo
Enumeration DateJuly 24, 2026
Last NPPES UpdateJuly 29, 20262 updates tracked since enumeration
NPPES CertifiedJuly 29, 2026
✔ NPI 1275454134 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in IL · 046.012134
Definition
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.
227 E ONTARIO ST, Chicago, IL 60611
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Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JEREMY BRIAN CAMPBELL PT, DPT, CSCS
Physical Therapist
227 E ONTARIO ST, SUITE 201
CHICAGO, IL 60611
Cook County (312) 527-9201
LINDSAY CLARE PAULSEN DPT
Physical Therapist
227 E ONTARIO ST, STE 201
CHICAGO, IL 60611
Cook County (312) 225-3119
NOOR AMEICHE
Optometrist
227 E ONTARIO ST
CHICAGO, IL 60611
Cook County (312) 643-2019
CORI MACK P.T
Physical Therapist
227 E ONTARIO ST, SUITE 201
CHICAGO, IL 60611
Cook County (773) 417-6689
MACK PHYSICAL THERAPY LLC
Physical Therapist
227 E ONTARIO ST, STE 201
CHICAGO, IL 60611
Cook County (312) 527-2701

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Williams's NPI number?

The NPI number for Matthew Williams is 1275454134. It was assigned to this individual provider in the NPPES registry on July 24, 2026.

Where is Matthew Williams located?

Matthew Williams practices at 227 E Ontario St, Chicago, IL 60611. The listed phone number is (312) 643-2019.

What is Matthew Williams's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

When was this NPI record last updated?

The NPPES record for Matthew Williams was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.