Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Maryalice Elizabeth Khan, RN PHN

Registered Nurse in Costa Mesa, CA · enumerated 2011.

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

National Provider Identifier

1639446289

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Registry record

Entity type Individual (Type 1)

Name Ms. Maryalice Elizabeth Khan

Credential RN PHN

Sex Female

Practice address 151 Kalmus Dr, Suite K-3, Costa Mesa, CA, 92626

Phone (714) 474-2918

Fax (714) 242-9268

Enumeration date Nov 28, 2011

Last updated in NPPES Nov 28, 2011

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 430219 (CA) Primary

163WC1500X Community Health Registered Nurse Nursing Service Providers · License 55185 (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

Is NPI 1639446289 active?

Yes, as of the latest NPPES snapshot, NPI 1639446289 is active (record last updated 2011-11-28).

How do I verify Maryalice Khan's NPI record?

Cross-check NPI 1639446289 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 2011-11-28.