Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Angelo Duaso

Certified Respiratory Therapist in Vallejo, CA · enumerated 2019.

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

National Provider Identifier

1639633860

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Registry record

Entity type Individual (Type 1)

Name Angelo Duaso

Sex Male

Practice address 712 N Regatta Dr, Vallejo, CA, 94591

Phone (707) 384-1862

Enumeration date Jan 22, 2019

Last updated in NPPES Dec 30, 2021

Taxonomy & licenses

227800000X Certified Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 27939 (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

What specialty is Angelo Duaso?

Angelo Duaso is registered in NPPES with the primary taxonomy of Certified Respiratory Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-30.