Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sheila Lorraine Leffall

Public Health Dentistry in Redwood City, CA · enumerated 2010.

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

National Provider Identifier

1588985121

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Registry record

Entity type Individual (Type 1)

Name Dr. Sheila Lorraine Leffall

Sex Female

Practice address 369 Main St, Ste 250, Redwood City, CA, 94063

Phone (650) 369-3399

Enumeration date Jun 17, 2010

Last updated in NPPES Jun 17, 2010

Taxonomy & licenses

122300000X Dentist Dental Providers · License 47116 (CA) Secondary

1223D0001X Public Health Dentistry Dental Providers · License 47116 (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

Is NPI 1588985121 active?

Yes, as of the latest NPPES snapshot, NPI 1588985121 is active (record last updated 2010-06-17).

How do I verify Sheila Leffall's NPI record?

Cross-check NPI 1588985121 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Brian Lipson Allergy & Immunology (Internal Medicine) Physician · Rewood City, CA NPI 1821179391 Erika Kamayatsu-Peterson General Practice Dentistry · Redwood City, CA NPI 1174665947

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-17.