Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dean J Williams, M.D.

Emergency Medicine Physician in Erie, CO · enumerated 2006.

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

National Provider Identifier

1104841501

Verified

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Registry record

Entity type Individual (Type 1)

Name Dean J Williams

Credential M.D.

Sex Male

Practice address Erie, CO, 80516

Phone (720) 505-1753

Enumeration date Jul 13, 2006

Last updated in NPPES Jun 2, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD-48063 (IA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 61394-20 (WI) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 26916 (NE) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD418570 (PA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 48666 (CO) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD17020 (HI) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License C205088 (CA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 15305 (ND) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Dean Williams practice?

The practice location on file with NPPES is in Erie, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Dean Williams?

The National Provider Identifier (NPI) for Dean Williams is 1104841501, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-02.