Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hannah Ruth Dornbusch, WHNP-BC

Women's Health Nurse Practitioner in Mountain View, CA · enumerated 2021 · practices at County of Santa Clara.

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

National Provider Identifier

1639748171

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Registry record

Entity type Individual (Type 1)

Name Hannah Ruth Dornbusch

Credential WHNP-BC

Sex Female

Practice address 2500 California St, Mountain View, CA, 94040

Phone (650) 948-0807

Enumeration date Jun 20, 2021

Last updated in NPPES Jan 3, 2022

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95018196 (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

Where does Hannah Dornbusch practice?

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

What is the NPI number for Hannah Dornbusch?

The National Provider Identifier (NPI) for Hannah Dornbusch is 1639748171, a Type 1 (individual) record in the CMS NPPES registry.

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Anthia Lee Pharmacist · Mountain View, CA NPI 1326305731 County of Santa Clara Clinic/Center · Mountain View, CA NPI 1912650672

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-03.