NPI Portal NPI Lookup & Verification

Dr. Patrick C Liu, DC

Dr. Patrick C Liu is a Chiropractor provider (Chiropractor) practicing in Arlington, VA, registered in the NPPES registry with NPI 1407939994 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1407939994
Entity type Individual (Type 1)
Name Dr. Patrick C Liu
Credential DC
Sex Male
Practice address Arlington, VA, 22202
Phone 7034160460
Fax 7034160502
Enumeration date 2006-10-20
Last updated in NPPES 2008-03-20

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary 0104555979 VA

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details
Provider: Patrick Liu, DC
NPI: 1407939994
Taxonomy: 111N00000X (Chiropractor)
Address: Arlington, VA, 22202

Verify this record

Cross-check NPI 1407939994 against the authoritative CMS record: view Dr. Patrick C Liu on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify Patrick Liu's NPI record?
Cross-check NPI 1407939994 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1407939994 active?
Yes — as of the latest NPPES snapshot, NPI 1407939994 is active (record last updated 2008-03-20).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-03-20.