Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marcus Hisao Au, PT

Physical Therapy Assistant in Renton, WA · enumerated 2022.

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

National Provider Identifier

1578281028

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Registry record

Entity type Individual (Type 1)

Name Marcus Hisao Au

Credential PT

Sex Male

Practice address 400 S 43rd St, Renton, WA, 98055

Phone (425) 690-3650

Enumeration date Aug 19, 2022

Last updated in NPPES Aug 19, 2022

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT61328007 (WA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

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 Marcus Au's NPI record?

Cross-check NPI 1578281028 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578281028 active?

Yes, as of the latest NPPES snapshot, NPI 1578281028 is active (record last updated 2022-08-19).

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Eduardo Margo Hospitalist Physician · Renton, WA NPI 1588660831 Vantage Radiology & Diagnostic Services, A Professional Services Corp Diagnostic Radiology Physician · Renton, WA NPI 1245230598 Associated Emergency Room Physicians, Inc P.S. Emergency Medicine Physician · Renton, WA NPI 1861480840 Imaging Partners at Valley LLC Diagnostic Radiology Physician · Renton, WA NPI 1215918081 Kathleen Porter Pharmacist · Renton, WA NPI 1841272630 Nicholas Rezek Physician Assistant · Renton, WA NPI 1356329221 Brian Levy Hospitalist Physician · Renton, WA NPI 1043272925 Stephen Bretz Emergency Medical Services (Emergency Medicine) Physician · Renton, WA NPI 1174581573

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-19.