Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark H Hsu, D.M.D.

Dentist in Liverpool, NY · enumerated 2011.

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

National Provider Identifier

1275831133

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Registry record

Entity type Individual (Type 1)

Name Mark H Hsu

Credential D.M.D.

Sex Male

Practice address 5100 W Taft Rd, Suite 3k, Liverpool, NY, 13088

Phone (315) 452-2700

Fax (315) 452-2705

Enumeration date Mar 2, 2011

Last updated in NPPES Oct 2, 2013

Taxonomy & licenses

122300000X Dentist Dental Providers · License 042499 (NY) Primary

1223G0001X General Practice Dentistry Dental Providers · License 24295 (TX) Secondary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

Is NPI 1275831133 active?

Yes, as of the latest NPPES snapshot, NPI 1275831133 is active (record last updated 2013-10-02).

How do I verify Mark Hsu's NPI record?

Cross-check NPI 1275831133 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-02.