Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter J Cvietusa

Allergy & Immunology Physician in Lakewood, CO · enumerated 2007.

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

National Provider Identifier

1669509543

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter J Cvietusa

Sex Male

Practice address 8383 W Alameda Ave, Lakewood, CO, 80226

Phone (303) 338-4545

Enumeration date Feb 27, 2007

Last updated in NPPES Jun 15, 2021

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 30079 (CO) Primary

Other identifiers

Identifier	Type	State	Issuer
01300797	Medicaid	CO	-
008145	Other	-	KAISER-COMMERCIAL NUMBER

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

Where does Peter Cvietusa practice?

The practice location on file with NPPES is in Lakewood, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Peter Cvietusa?

The National Provider Identifier (NPI) for Peter Cvietusa is 1669509543, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-15.