Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ahmed N Hassan, MD

Critical Care Medicine (Internal Medicine) Physician in Naperville, IL · enumerated 2008.

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

National Provider Identifier

1548426745

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Registry record

Entity type Individual (Type 1)

Name Dr. Ahmed N Hassan

Credential MD

Sex Male

Practice address 801 S. Washington St, 6th Floor Cnicu, Naperville, IL, 60540

Phone (630) 527-7235

Enumeration date Aug 6, 2008

Last updated in NPPES Feb 4, 2021

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 2010030926 (MO) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 036121123 (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
P01308445	Other	IL	MEDICARE RAILROAD (INDIVIDUAL)
206147	Other	IL	MEDICARE PTAN (GROUP)
206147244	Other	IL	MEDICARE PTAN (INDIVIDUAL)
010030926	Medicaid	IL	-
CA4748	Other	IL	MEDICARE RAILROAD (GROUP)

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 1548426745 active?

Yes, as of the latest NPPES snapshot, NPI 1548426745 is active (record last updated 2021-02-04).

How do I verify Ahmed Hassan's NPI record?

Cross-check NPI 1548426745 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 2021-02-04.