Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William E Daniel, MD

Radiation Oncology Physician in Aurora, CO · enumerated 2005.

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

National Provider Identifier

1679557318

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. William E Daniel

Credential MD

Sex Male

Practice address 1700 S Potomac St, Aurora, CO, 80012

Phone (303) 418-7600

Fax (303) 750-3137

Enumeration date Dec 6, 2005

Last updated in NPPES Dec 9, 2008

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 18104 (CO) 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
01181049	Medicaid	CO	—

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

What is the NPI number for William Daniel?

The National Provider Identifier (NPI) for William Daniel is 1679557318, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Daniel practice?

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

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-09.