Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William E Dietze, MD

Otolaryngology Physician in Sulphur Springs, TX · enumerated 2005.

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

National Provider Identifier

1396740387

Verified

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Registry record

Entity type Individual (Type 1)

Name William E Dietze

Credential MD

Sex Male

Practice address 115 Airport Rd, Sulphur Springs, TX, 75482

Phone (903) 438-4670

Fax (903) 885-8720

Enumeration date Jun 16, 2005

Last updated in NPPES Sep 26, 2018

Taxonomy & licenses

174400000X Specialist Other Service Providers · License D4092 (TX) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License D4092 (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
75-2616977-113	Other	TX	TRICARE
089557503	Medicaid	TX	-

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 William Dietze practice?

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

What is the NPI number for William Dietze?

The National Provider Identifier (NPI) for William Dietze is 1396740387, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-26.