NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph L. Warren, D.O.

Emergency Medical Services (Emergency Medicine) Physician in Dearborn, MI · enumerated 2006.

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

National Provider Identifier

1104805944

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Registry record

Entity type Individual (Type 1)
Name Dr. Joseph L. Warren
Credential D.O.
Sex Male
Practice address 18101 Oakwood Blvd, Dearborn, MI, 48124
Enumeration date Jan 11, 2006
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License 5101015058 (MI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
11-4801135 Medicaid MI -
11-4801082 Medicaid MI -
11-4801108 Medicaid MI -
11-4801117 Medicaid MI -
11-4801126 Medicaid MI -
0158213485 Other MI BCBS

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

What specialty is Joseph Warren?
Joseph Warren is registered in NPPES with the primary taxonomy of Emergency Medical Services (Emergency Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.