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

Cynthia M Costello, C.P.N.P.

Pediatric Nurse Practitioner in Los Angeles, CA · enumerated 2006 · practices at Orthopaedic Hospital.

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

National Provider Identifier

1740393818

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Registry record

Entity type Individual (Type 1)
Name Cynthia M Costello
Credential C.P.N.P.
Sex Female
Practice address Los Angeles, CA, 90007
Phone (213) 742-1433
Fax (213) 742-1496
Enumeration date Aug 16, 2006
Last updated in NPPES Oct 24, 2013

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

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 313570 (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 specialty is Cynthia Costello?
Cynthia Costello is registered in NPPES with the primary taxonomy of Pediatric Nurse Practitioner. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-24.