Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

John Langali Mwaengo, RN

Registered Nurse in Elk Grove, CA · enumerated 2019.

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

National Provider Identifier

1821551508

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Registry record

Entity type Individual (Type 1)

Name John Langali Mwaengo

Credential RN

Sex Male

Practice address Elk Grove, CA, 95758

Phone (951) 322-9527

Enumeration date Apr 10, 2019

Last updated in NPPES Sep 22, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

167G00000X Licensed Psychiatric Technician Nursing Service Providers · License PT41074 (CA) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 290496 (AZ) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
F7755199	Other	CA	DRIVERS LICENSE

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

How do I verify John Mwaengo's NPI record?

Cross-check NPI 1821551508 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821551508 active?

Yes, as of the latest NPPES snapshot, NPI 1821551508 is active (record last updated 2024-09-22).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-22.