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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron B. Weinberg, M.D/

Retina Specialist (Ophthalmology) Physician in Elmhurst, IL · enumerated 2006 · practices at Retina Associates Ltd.

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

National Provider Identifier

1801834676

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Registry record

Entity type Individual (Type 1)
Name Dr. Aaron B. Weinberg
Credential M.D/
Sex Male
Practice address 133 E Brush Hill Rd Ste 300, Elmhurst, IL, 60126
Fax (630) 571-5679
Enumeration date Jun 3, 2006
Last updated in NPPES Dec 28, 2021

Taxonomy & licenses

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 036080962 (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
180015831 Other IL RR MEDICARE PIN
2201714 Other IL BCBS
36080962 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 Aaron Weinberg's NPI record?
Cross-check NPI 1801834676 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1801834676 active?
Yes, as of the latest NPPES snapshot, NPI 1801834676 is active (record last updated 2021-12-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-28.