Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Gerowitz, O.D.

Corneal and Contact Management Optometrist in Palatine, IL · enumerated 2006.

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

National Provider Identifier

1023184520

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Gerowitz

Credential O.D.

Sex Male

Practice address 4880 Euclid Ave. #101, Palatine, IL, 60067

Phone (847) 705-7777

Enumeration date Nov 27, 2006

Last updated in NPPES Jun 20, 2008

Taxonomy & licenses

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 046007457 (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
046007457	Other	IL	LICENCE NUMBER

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 Robert Gerowitz's NPI record?

Cross-check NPI 1023184520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1023184520 active?

Yes, as of the latest NPPES snapshot, NPI 1023184520 is active (record last updated 2008-06-20).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-20.