Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catherine Elizabeth Jansen, RN PHD

Oncology Clinical Nurse Specialist in San Francisco, CA · enumerated 2007 · practices at Kaiser Foundation Health Plan Inc.

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

National Provider Identifier

1568594620

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Registry record

Entity type Individual (Type 1)

Name Catherine Elizabeth Jansen

Credential RN PHD

Sex Female

Practice address 2238 Geary Blvd, Room 8e343, San Francisco, CA, 94115

Phone (415) 833-4495

Enumeration date Mar 12, 2007

Last updated in NPPES Dec 30, 2021

Taxonomy & licenses

364SX0200X Oncology Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 105 (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 Catherine Jansen?

Catherine Jansen is registered in NPPES with the primary taxonomy of Oncology Clinical Nurse Specialist. 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 2021-12-30.