Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Erin Elizabeth O'Rourke, NP

Acute Care Nurse Practitioner in Carmichael, CA · enumerated 2019.

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

National Provider Identifier

1700435237

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Registry record

Entity type Individual (Type 1)

Name Erin Elizabeth O'Rourke

Credential NP

Sex Female

Practice address 6501 Coyle Ave, Carmichael, CA, 95608

Phone (916) 537-5000

Enumeration date Sep 7, 2019

Last updated in NPPES Sep 20, 2019

Taxonomy & licenses

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95012711 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

Where does Erin O'Rourke practice?

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

What is the NPI number for Erin O'Rourke?

The National Provider Identifier (NPI) for Erin O'Rourke is 1700435237, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-20.