Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Joanna M. Leonard, N.P., M.S.N., R.N.

Medical-Surgical Registered Nurse in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1396764999

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Registry record

Entity type Individual (Type 1)

Name Ms. Joanna M. Leonard

Credential N.P., M.S.N., R.N.

Sex Female

Practice address 50 Lech Walesa, Tom Waddell Health Center, San Francisco, CA, 94102

Phone (415) 355-7400

Fax (415) 355-7402

Enumeration date Jul 18, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

163WM0705X Medical-Surgical Registered Nurse Nursing Service Providers · License RN604909 (CA) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP15578 (CA) Secondary

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 Joanna Leonard practice?

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

What is the NPI number for Joanna Leonard?

The National Provider Identifier (NPI) for Joanna Leonard is 1396764999, 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 2025-09-11.