Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aileen F Hessel

Community Health Registered Nurse in Redwood City, CA · enumerated 2007.

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

National Provider Identifier

1104942655

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Registry record

Entity type Individual (Type 1)

Name Aileen F Hessel

Sex Female

Practice address 802 Brewster Ave, Redwood City, CA, 94063

Phone (650) 363-4112

Fax (350) 364-6927

Enumeration date Mar 22, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163WC1500X Community Health Registered Nurse Nursing Service Providers · License RN123009 (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 1104942655 active?

Yes, as of the latest NPPES snapshot, NPI 1104942655 is active (record last updated 2007-07-08).

How do I verify Aileen Hessel's NPI record?

Cross-check NPI 1104942655 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 2007-07-08.