Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Antonietta E Vaillancourt, PA

Surgical Physician Assistant in Gaithersburg, MD · enumerated 2017.

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

National Provider Identifier

1811403033

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Registry record

Entity type Individual (Type 1)

Name Antonietta E Vaillancourt

Credential PA

Sex Female

Practice address 9561 White Pillar Ter, Gaithersburg, MD, 20882

Phone (301) 641-8354

Fax (301) 641-8354

Enumeration date Dec 26, 2017

Last updated in NPPES Feb 20, 2024

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License C06707 (MD) Primary

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License AMD-789 (HI) Secondary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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

Where does Antonietta Vaillancourt practice?

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

What is the NPI number for Antonietta Vaillancourt?

The National Provider Identifier (NPI) for Antonietta Vaillancourt is 1811403033, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-20.