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

THOMAS LACH OD
NPI 1851220495
Optometrist in Chicago, IL

Active since May 19, 2026
1055 W BRYN MAWR AVE # 3, CHICAGO, IL 60660(773) 334-1893 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 9, 2026, May 19, 2026 (2 updates tracked since 2026).

About Thomas Lach Od NPPES

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

THOMAS LACH OD (NPI 1851220495) is an individual optometrist in Chicago, Illinois, licensed in Illinois (046.012107) and active in the NPI registry since May 2026.

NPPES Registry Identity

NPI1851220495
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameTHOMAS LACHCredential: OD
Location Address1055 W BRYN MAWR AVE # 3Chicago, IL 60660-4691
Mailing Address7723 W Sunset DrElmwood Park, IL 60707-1326
Phone(773) 334-1893
Sole ProprietorYes
Enumeration DateMay 19, 2026
Last NPPES UpdateJuly 9, 20262 updates tracked since enumeration
NPPES CertifiedJuly 9, 2026
✔ NPI 1851220495 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 · 046.012107
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.
1055 W BRYN MAWR AVE # 3, Chicago, IL 60660
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Other Providers at the Same Location NPPES

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

MOHMMADUMAR ANARWALA OD
Optometrist
1055 W BRYN MAWR AVE # 3
CHICAGO, IL 60660
Cook County (773) 334-1893

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 Thomas Lach's NPI number?

The NPI number for Thomas Lach is 1851220495. It was assigned to this individual provider in the NPPES registry on May 19, 2026.

Where is Thomas Lach located?

Thomas Lach practices at 1055 W Bryn Mawr Ave # 3, Chicago, IL 60660. The listed phone number is (773) 334-1893.

What is Thomas Lach'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 Thomas Lach was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.