Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Kristin Alderisio, PA-C

Community Health Worker in San Francisco, CA · enumerated 2006 · practices at Progress Foundation.

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

National Provider Identifier

1669535258

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Registry record

Entity type Individual (Type 1)

Name Ms. Kristin Alderisio

Credential PA-C

Sex Female

Practice address 368 Fell St, San Francisco, CA, 94102

Phone (415) 861-0828

Enumeration date Dec 18, 2006

Last updated in NPPES Apr 1, 2025

Taxonomy & licenses

172V00000X Community Health Worker Other Service Providers Primary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA16413 (CA) Secondary

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

What is the NPI number for Kristin Alderisio?

The National Provider Identifier (NPI) for Kristin Alderisio is 1669535258, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kristin Alderisio practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-01.