Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Brittany Michele Mustakas, FNP-BC

Nurse Practitioner in Valhalla, NY · enumerated 2018.

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

National Provider Identifier

1144702820

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Registry record

Entity type Individual (Type 1)

Name Mrs. Brittany Michele Mustakas

Credential FNP-BC

Sex Female

Practice address 100 Woods Rd, Valhalla, NY, 10595

Phone (914) 493-8585

Enumeration date Aug 30, 2018

Last updated in NPPES Aug 30, 2018

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 343194 (NY) 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

How do I verify Brittany Mustakas's NPI record?

Cross-check NPI 1144702820 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1144702820 active?

Yes, as of the latest NPPES snapshot, NPI 1144702820 is active (record last updated 2018-08-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-30.