Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael T Sims, M.D.

Emergency Medicine Physician in Elgin, IL · enumerated 2006.

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

National Provider Identifier

1538108238

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Registry record

Entity type Individual (Type 1)

Name Michael T Sims

Credential M.D.

Sex Male

Practice address 934 Center St, Elgin, IL, 60120

Phone (847) 742-9800

Enumeration date Jun 6, 2006

Last updated in NPPES Sep 18, 2024

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 76514-20 (WI) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 01083346A (IN) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD-53604 (IA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036.116070 (IL) Primary

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.

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Frequently asked questions

How do I verify Michael Sims's NPI record?

Cross-check NPI 1538108238 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538108238 active?

Yes, as of the latest NPPES snapshot, NPI 1538108238 is active (record last updated 2024-09-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-18.