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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CYNTHIA CHAU
NPI 1932919503
Physician Assistant - Medical in Mc Lean, VA

Active since January 07, 2025PECOS Enrolled
1749 OLD MEADOW RD STE 308, MC LEAN, VA 22102(703) 452-8616 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 28, 2026, Aug 31, 2026, Jul 28, 2026 and 1 more (4 updates tracked since 2025).

About Cynthia Chau NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CYNTHIA CHAU (NPI 1932919503) is an individual medical provider in Mc Lean, Virginia and active in the NPI registry since January 2025. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1932919503
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameCYNTHIA CHAU
Location Address1749 OLD MEADOW RD STE 308Mc Lean, VA 22102-4310
Mailing Address1749 Old Meadow Rd Ste 308Mc Lean, VA 22102-4310 · (703) 452-8616
Phone(703) 452-8616
Sole ProprietorYes
Enumeration DateJanuary 7, 2025
Last NPPES UpdateSeptember 28, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2026
✔ NPI 1932919503 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
1749 OLD MEADOW RD STE 308, Mc Lean, VA 22102
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Secondary Practice Locations 2

Location 12600 Virginia Ave NW Ste 508Washington, DC 20037-1946 · Phone (202) 342-1984
Location 219450 Deerfield Avenue, Suite 335Leesburg, VA 20176-6821 · Phone (703) 858-3060 · Fax (703) 858-3061

Other Identifiers 2

Medicaid1932919503VA
Medicaid30018733670001WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cynthia Chau is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cynthia Chau's NPI number?

The NPI number for Cynthia Chau is 1932919503. It was assigned to this individual provider in the NPPES registry on January 7, 2025.

Where is Cynthia Chau located?

Cynthia Chau practices at 1749 Old Meadow Rd Ste 308, Mc Lean, VA 22102. The listed phone number is (703) 452-8616.

What is Cynthia Chau's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Cynthia Chau enrolled in Medicare?

Yes. Cynthia Chau is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Cynthia Chau was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.