Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Dan Frederick Madsen, MD

Otolaryngology Physician in Wharton, TX · enumerated 2006.

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

National Provider Identifier

1194789883

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Registry record

Entity type Individual (Type 1)

Name Dr. Dan Frederick Madsen

Credential MD

Sex Male

Practice address 2100 Regional Medical Dr, Wharton, TX, 77488

Phone (979) 532-1700

Fax (979) 532-6796

Enumeration date Apr 12, 2006

Last updated in NPPES Dec 5, 2012

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License F6897 (TX) 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
119168606	Medicaid	TX	-
887915	Other	TX	BC/BS TX#
040006014	Other	TX	RAILROAD GBA - RAILROAD MEDICARE
MDF6897TX	Other	TX	WORKERS COMPENSATION
P01090504	Other	TX	RAILROAD MEDICARE PTAN
119168603	Medicaid	TX	-
8DE536	Other	TX	BC/BS #

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

Is NPI 1194789883 active?

Yes, as of the latest NPPES snapshot, NPI 1194789883 is active (record last updated 2012-12-05).

How do I verify Dan Madsen's NPI record?

Cross-check NPI 1194789883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-05.