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

Janet Marie Perez, RN

Q: What is the NPI number for Janet Perez?

The National Provider Identifier (NPI) for Janet Perez is 1841313756, a Type 1 (individual) record in the CMS NPPES registry.

Perinatal Registered Nurse in Hayward, CA · enumerated 2007.

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

National Provider Identifier

1841313756

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Registry record

Entity type Individual (Type 1)

Name Janet Marie Perez

Credential RN

Sex Female

Practice address Hayward, CA, 94545

Phone (510) 784-4429

Enumeration date Apr 6, 2007

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

163WP1700X Perinatal Registered Nurse Nursing Service Providers · License 378978 (CA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

What is the NPI number for Janet Perez?

The National Provider Identifier (NPI) for Janet Perez is 1841313756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Janet Perez practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.