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

Ms. Iris Marion Carline Ferguson, RN, RNFA

Registered Nurse First Assistant in Dulles, VA · enumerated 2012.

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

National Provider Identifier

1215273040

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Registry record

Entity type Individual (Type 1)

Name Ms. Iris Marion Carline Ferguson

Credential RN, RNFA

Sex Female

Practice address Dulles, VA, 20166

Phone (703) 861-7660

Enumeration date Dec 26, 2012

Last updated in NPPES Aug 24, 2018

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

Taxonomy & licenses

163WR0006X Registered Nurse First Assistant Nursing Service Providers · License 0001130352 (VA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Iris Ferguson's NPI record?

Cross-check NPI 1215273040 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1215273040 active?

Yes, as of the latest NPPES snapshot, NPI 1215273040 is active (record last updated 2018-08-24).

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Dora Rioja-Mazza Pediatrics Physician · Dulles, VA NPI 1154575157 Oakjoo Lee Registered Nurse First Assistant · Dulles, VA NPI 1881026904 Stonesprings Anesthesia Associates, Ltd Anesthesiology Physician · Dulles, VA NPI 1255718235 Mdics at Stonesprings, LLC Hospitalist Physician · Dulles, VA NPI 1194100594 Vesper Medical Associates of Virginia Critical Care Medicine (Internal Medicine) Physician · Dulles, VA NPI 1356790497 Northern Virginia Community Hospital LLC Cardiovascular Disease Physician · Dulles, VA NPI 1669923967 Mital Sarada Registered Dietitian · Dulles, VA NPI 1467990309 Dominion Surgical Assistants, LLC Registered Nurse First Assistant · Dulles, VA NPI 1962915454

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-24.