NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Melissa Marroquin

Magnetic Resonance Imaging Radiologic Technologist in Laguna Woods, CA · enumerated 2025 · practices at Memorialcare Surgical Center at Saddleback LLC.

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

National Provider Identifier

1467345686

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Melissa Marroquin
Sex Female
Practice address Laguna Woods, CA, 92637
Enumeration date May 29, 2025
Last updated in NPPES May 29, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2471M1202X Magnetic Resonance Imaging Radiologic Technologist Technologists, Technicians & Other Technical Service Providers · License ARMRIT1513 (CA) 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

What specialty is Melissa Marroquin?
Melissa Marroquin is registered in NPPES with the primary taxonomy of Magnetic Resonance Imaging Radiologic Technologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-29.