Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John N Loizeaux-Witte, M.D.

Diagnostic Radiology Physician in El Paso, TX · enumerated 2007.

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

National Provider Identifier

1992850556

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Registry record

Entity type Individual (Type 1)

Name Dr. John N Loizeaux-Witte

Credential M.D.

Sex Male

Practice address 4810 Rosinante Rd, El Paso, TX, 79922

Phone (310) 739-0322

Enumeration date Jan 24, 2007

Last updated in NPPES Mar 18, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License G82321 (CA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License K0901 (TX) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify John Loizeaux-Witte's NPI record?

Cross-check NPI 1992850556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1992850556 active?

Yes, as of the latest NPPES snapshot, NPI 1992850556 is active (record last updated 2025-03-18).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-18.