Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Winter

Q: What is the NPI number for Mark Winter?

The National Provider Identifier (NPI) for Mark Winter is 1417303405, a Type 1 (individual) record in the CMS NPPES registry.

Diagnostic Radiology Physician in El Segundo, CA · enumerated 2016.

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

National Provider Identifier

1417303405

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Registry record

Entity type Individual (Type 1)

Name Mark Winter

Sex Male

Practice address 2330 Utah Ave Ste 200, El Segundo, CA, 90245

Phone (281) 766-0959

Enumeration date May 9, 2016

Last updated in NPPES Jan 15, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 12215487-1205 (UT) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License ME165038 (FL) Primary

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 Mark Winter practice?

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

What is the NPI number for Mark Winter?

The National Provider Identifier (NPI) for Mark Winter is 1417303405, 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 2025-01-15.