Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marlena Girouard, FNP-C

Family Nurse Practitioner in Costa Mesa, CA · enumerated 2020 · practices at University of California Irvine.

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

National Provider Identifier

1548857162

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Registry record

Entity type Individual (Type 1)

Name Marlena Girouard

Credential FNP-C

Sex Female

Practice address 1640 Newport Blvd Ste 400, Costa Mesa, CA, 92627

Phone (949) 999-2400

Enumeration date Dec 29, 2020

Last updated in NPPES Oct 14, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95015862 (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.

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Frequently asked questions

What is the NPI number for Marlena Girouard?

The National Provider Identifier (NPI) for Marlena Girouard is 1548857162, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marlena Girouard practice?

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

Other providers at this practice address

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Khosrow Mahdavi Hematology & Oncology Physician · Costa Mesa, CA NPI 1275536773 Andreea Nanci Hematology & Oncology Physician · Costa Mesa, CA NPI 1508813098 University of California Irvine Home Infusion Therapy Pharmacy · Costa Mesa, CA NPI 1396559498

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-14.