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Marina Frances Efstathiu

Behavior Technician in Boulder, CO · enumerated 2020.

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

National Provider Identifier

1881220499

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Registry record

Entity type Individual (Type 1)
Name Marina Frances Efstathiu
Sex Female
Practice address 5305 Spine Rd Ste A, Boulder, CO, 80301
Phone (720) 643-2350
Enumeration date Mar 14, 2020
Last updated in NPPES Mar 14, 2020

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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.

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Frequently asked questions

Is NPI 1881220499 active?
Yes, as of the latest NPPES snapshot, NPI 1881220499 is active (record last updated 2020-03-14).
How do I verify Marina Efstathiu's NPI record?
Cross-check NPI 1881220499 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-14.