Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Daniel B Knox, M.D.

Q: What is the NPI number for Daniel Knox?

The National Provider Identifier (NPI) for Daniel Knox is 1821259144, a Type 1 (individual) record in the CMS NPPES registry.

Critical Care Medicine (Internal Medicine) Physician in Casper, WY · enumerated 2008.

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

National Provider Identifier

1821259144

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Registry record

Entity type Individual (Type 1)

Name Dr. Daniel B Knox

Credential M.D.

Sex Male

Practice address 1233 E 2nd St, Casper, WY, 82601

Phone (307) 577-7201

Enumeration date Jun 19, 2008

Last updated in NPPES Jul 2, 2026

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 15295-320 (WI) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 7964677-1205 (UT) Secondary

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 13229C (WY) 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

What is the NPI number for Daniel Knox?

The National Provider Identifier (NPI) for Daniel Knox is 1821259144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Daniel Knox practice?

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

Other providers at this practice address

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