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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lisa D Ryder, PA-C

Physician Assistant in Redwood City, CA · enumerated 2009 · practices at Stanford University Medical Center.

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

National Provider Identifier

1699916817

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Registry record

Entity type Individual (Type 1)
Name Lisa D Ryder
Credential PA-C
Sex Female
Practice address 450 Broadway St, Pavillion A (Mc6110), Redwood City, CA, 94063
Enumeration date Mar 18, 2009
Last updated in NPPES Mar 18, 2009

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA20192 (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

Is NPI 1699916817 active?
Yes, as of the latest NPPES snapshot, NPI 1699916817 is active (record last updated 2009-03-18).
How do I verify Lisa Ryder's NPI record?
Cross-check NPI 1699916817 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-18.