Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert Tracy Williams, OD

Ophthalmology Physician in Maywood, IL · enumerated 2006 · practices at Loyola University Medical Center.

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

National Provider Identifier

1528032430

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Registry record

Entity type Individual (Type 1)

Name Robert Tracy Williams

Credential OD

Sex Male

Practice address 2160 S First Ave, (Luh-North Ent., Rm. 2601), Maywood, IL, 60153

Phone (708) 216-3408

Fax (708) 216-3557

Enumeration date Feb 15, 2006

Last updated in NPPES Jun 16, 2021

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 46007266 (IL) Primary

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

Other identifiers

Identifier	Type	State	Issuer
46007266	Medicaid	IL	-

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.

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Frequently asked questions

How do I verify Robert Williams's NPI record?

Cross-check NPI 1528032430 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1528032430 active?

Yes, as of the latest NPPES snapshot, NPI 1528032430 is active (record last updated 2021-06-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-16.