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

Mary Ann Costa, FNP

Nurse Practitioner in San Pedro, CA · enumerated 2006.

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

National Provider Identifier

1235161894

Verified

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Registry record

Entity type Individual (Type 1)

Name Mary Ann Costa

Credential FNP

Sex Female

Practice address San Pedro, CA, 90732

Phone (310) 514-5350

Fax (310) 514-5421

Enumeration date Jul 6, 2006

Last updated in NPPES Jun 25, 2008

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

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP9202 (CA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
RN434772	Medicaid	CA	-

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 is the NPI number for Mary Ann Costa?

The National Provider Identifier (NPI) for Mary Ann Costa is 1235161894, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Ann Costa practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-25.