Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dara Fiona Williams, PA-C

Physician Assistant in Bethesda, MD · enumerated 2026.

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

National Provider Identifier

1811813165

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Registry record

Entity type Individual (Type 1)

Name Dara Fiona Williams

Credential PA-C

Sex Female

Practice address 9000 Rockville Pike, Bethesda, MD, 20892

Phone (301) 496-4000

Enumeration date Jun 29, 2026

Last updated in NPPES Jun 29, 2026

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers 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

Where does Dara Williams practice?

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

What is the NPI number for Dara Williams?

The National Provider Identifier (NPI) for Dara Williams is 1811813165, 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 2026-06-29.