Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael E Marrero, M.D.

Diagnostic Radiology Physician in El Segundo, CA · enumerated 2006.

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

National Provider Identifier

1346288669

Verified

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Registry record

Entity type Individual (Type 1)

Name Michael E Marrero

Credential M.D.

Sex Male

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

Phone (281) 766-0959

Enumeration date Jun 2, 2006

Last updated in NPPES Jan 9, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 73844 (MA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License ME131980 (FL) 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
0109754Y0NH02	Other	NH	ANTHEM
300134039	Other	-	RAILROAD MEDICARE
3078337	Medicaid	MA	-
4276160	Other	-	AETNA
292780099	Medicaid	ME	-
30203233	Medicaid	NH	-
3405042	Other	-	CIGNA

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 Michael Marrero 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 Michael Marrero?

The National Provider Identifier (NPI) for Michael Marrero is 1346288669, 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 2025-01-09.