Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael C Smith, MD

Neurology Physician in Chicago, IL · enumerated 2005.

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

National Provider Identifier

1285620617

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael C Smith

Credential MD

Sex Male

Practice address 1725 W Harrison St, 1106, Chicago, IL, 60612

Phone (312) 942-4500

Fax (312) 942-2380

Enumeration date Sep 21, 2005

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 036073603 (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
036073603	Medicaid	IL	-
336037196	Other	IL	IL DEPT OF PROF REG

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 Michael Smith?

Michael Smith is registered in NPPES with the primary taxonomy of Neurology 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 2023-03-07.