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Ms. Sonia Thomas, MSC, MSC, CGC

Genetic Counselor (M.S.) in Falls Church, VA · enumerated 2015.

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

National Provider Identifier

1609242478

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Registry record

Entity type Individual (Type 1)
Name Ms. Sonia Thomas
Credential MSC, MSC, CGC
Sex Female
Practice address 3300 Gallows Rd, Falls Church, VA, 22042
Phone (703) 776-4001
Fax (703) 776-7113
Enumeration date Aug 17, 2015
Last updated in NPPES Jan 19, 2021

Taxonomy & licenses

170300000X Genetic Counselor (M.S.) Other Service Providers · License GC2015-024 (NM) Secondary
170300000X Genetic Counselor (M.S.) Other Service Providers · License 0139000027 (VA) 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.

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Frequently asked questions

How do I verify Sonia Thomas's NPI record?
Cross-check NPI 1609242478 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1609242478 active?
Yes, as of the latest NPPES snapshot, NPI 1609242478 is active (record last updated 2021-01-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-19.