Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary Steinberg, M D

Urology Physician in Chicago, IL · enumerated 2007.

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

National Provider Identifier

1558585307

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Registry record

Entity type Individual (Type 1)

Name Gary Steinberg

Credential M D

Sex Male

Practice address 5841 S Maryland Ave, Mc 6038, Chicago, IL, 60637

Phone (773) 702-3080

Enumeration date Apr 12, 2007

Last updated in NPPES Apr 2, 2021

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 036-089749 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
036089749	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1558585307 active?

Yes, as of the latest NPPES snapshot, NPI 1558585307 is active (record last updated 2021-04-02).

How do I verify Gary Steinberg's NPI record?

Cross-check NPI 1558585307 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-02.