Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew Michael Dunne, M.D.

Hospitalist Physician in Naperville, IL · enumerated 2007.

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

National Provider Identifier

1588853113

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Registry record

Entity type Individual (Type 1)

Name Matthew Michael Dunne

Credential M.D.

Sex Male

Practice address 801 S. Washington St, 3rd Floor, Naperville, IL, 60540

Phone (630) 527-5359

Fax (630) 527-5526

Enumeration date Oct 19, 2007

Last updated in NPPES Apr 17, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036123594 (IL) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 125052155 (IL) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036123594 (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
1588853113 1	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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Matthew Dunne?

Matthew Dunne is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-17.