Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nader H. Darwish, MD

Radiation Oncology Physician in Urbana, IL · enumerated 2020.

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

National Provider Identifier

1528680139

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Registry record

Entity type Individual (Type 1)

Name Dr. Nader H. Darwish

Credential MD

Sex Male

Practice address 509 W University Ave, Urbana, IL, 61801

Phone (217) 383-3273

Enumeration date May 18, 2020

Last updated in NPPES May 4, 2026

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 036175471 (IL) Primary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 152.8680139 (IL) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

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

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 1528680139 active?

Yes, as of the latest NPPES snapshot, NPI 1528680139 is active (record last updated 2026-05-04).

How do I verify Nader Darwish's NPI record?

Cross-check NPI 1528680139 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 2026-05-04.