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Dr. Maria Virginia Castelli, NURSE PRACTITIONER

Psychiatric/Mental Health Nurse Practitioner in Campbell, CA · enumerated 2006.

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

National Provider Identifier

1194766113

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Registry record

Entity type Individual (Type 1)
Name Dr. Maria Virginia Castelli
Credential NURSE PRACTITIONER
Sex Female
Practice address 2542 S Bascom Ave, Ste 110, Campbell, CA, 95008
Phone (408) 559-3403
Fax (408) 559-3158
Enumeration date Jun 9, 2006
Last updated in NPPES Apr 19, 2016

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN291997 (CA) Secondary
363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP12655 (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

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.
What specialty is Maria Castelli?
Maria Castelli is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-19.