Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marinelle Marinelle Del Barrio Sebastian, FNP

Primary Care Nurse Practitioner in Thousand Oaks, CA · enumerated 2021.

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

National Provider Identifier

1568134831

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Registry record

Entity type Individual (Type 1)

Name Marinelle Marinelle Del Barrio Sebastian

Credential FNP

Sex Female

Practice address 248 Hampshire Rd Ste 200, Thousand Oaks, CA, 91361

Phone (805) 370-0040

Enumeration date Oct 4, 2021

Last updated in NPPES Aug 27, 2024

Taxonomy & licenses

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95017892 (CA) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

Where does Marinelle Sebastian practice?

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

What is the NPI number for Marinelle Sebastian?

The National Provider Identifier (NPI) for Marinelle Sebastian is 1568134831, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Andrew Gregg Gastroenterology Physician · Thousand Oaks, CA NPI 1942769104 Sophia Scattaglia Registered Dietitian · Thousand Oaks, CA NPI 1366114647

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-27.