Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melanie Malak Ambassador, MSW, BCBA

Behavior Analyst in Riverside, CA · enumerated 2018.

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

National Provider Identifier

1821599853

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Registry record

Entity type Individual (Type 1)

Name Melanie Malak Ambassador

Credential MSW, BCBA

Sex Female

Practice address 4150 Latham St Ste A, Riverside, CA, 92501

Phone (951) 363-0200

Enumeration date Feb 25, 2018

Last updated in NPPES Jan 30, 2023

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers · License 00002430 (CA) Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-22-58455 (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 1821599853 active?

Yes, as of the latest NPPES snapshot, NPI 1821599853 is active (record last updated 2023-01-30).

How do I verify Melanie Ambassador's NPI record?

Cross-check NPI 1821599853 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 2023-01-30.