Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephanie Peruzzi Ciarkowski, NP

Critical Care Neonatal Nurse Practitioner in Denver, CO · enumerated 2019.

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

National Provider Identifier

1538623574

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Registry record

Entity type Individual (Type 1)

Name Stephanie Peruzzi Ciarkowski

Credential NP

Sex Female

Practice address 2001 N High St, Denver, CO, 80205

Phone (720) 754-1000

Enumeration date Jan 23, 2019

Last updated in NPPES Mar 6, 2019

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN.1642161 (CO) Secondary

363LN0005X Critical Care Neonatal Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN.0994526-NP (CO) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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 Stephanie Ciarkowski's NPI record?

Cross-check NPI 1538623574 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538623574 active?

Yes, as of the latest NPPES snapshot, NPI 1538623574 is active (record last updated 2019-03-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-06.