Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Janet S Johanson, NP RN

Women's Health Nurse Practitioner in San Rafael, CA · enumerated 2006 · practices at Marin Community Clinic.

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

National Provider Identifier

1811095813

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Registry record

Entity type Individual (Type 1)

Name Mrs. Janet S Johanson

Credential NP RN

Sex Female

Practice address 3260 Kerner Blvd, San Rafael, CA, 94901

Phone (415) 473-6852

Fax (415) 473-4018

Enumeration date Sep 21, 2006

Last updated in NPPES Dec 17, 2008

Taxonomy & licenses

163WW0101X Ambulatory Women's Health Care Registered Nurse Nursing Service Providers · License 199279 (CA) Secondary

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2008 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Janet Johanson practice?

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

What is the NPI number for Janet Johanson?

The National Provider Identifier (NPI) for Janet Johanson is 1811095813, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-17.