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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.

DR. ALEX HSIEH DDS
NPI 1194404665
Dentist - Endodontics in Roseburg, OR

Active since July 12, 2023
1602 NW HUGHWOOD CT, ROSEBURG, OR 97471(541) 440-9175 Get Directions Write a Review

NPPES record last updated: July 30, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 30, 2026, May 8, 2024, Jul 12, 2023 (3 updates tracked since 2023).

About Dr. Alex Hsieh Dds NPPES

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

DR. ALEX HSIEH DDS (NPI 1194404665) is an individual endodontics provider in Roseburg, Oregon, licensed in Oregon (D12404) and active in the NPI registry since July 2023.

NPPES Registry Identity

NPI1194404665
Entity TypeIndividualMale
Primary Taxonomy1223E0200X
Provider Legal NameDR. ALEX HSIEHCredential: DDS
Location Address1602 NW HUGHWOOD CTRoseburg, OR 97471-8844
Mailing Address1602 Nw Hughwood CtRoseburg, OR 97471-8844 · (541) 440-9175
Phone(541) 440-9175
Sole ProprietorNo
Enumeration DateJuly 12, 2023
Last NPPES UpdateJuly 30, 20263 updates tracked since enumeration
NPPES CertifiedJuly 30, 2026
✔ NPI 1194404665 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyDentist · EndodonticsDental Providers
Taxonomy Code1223E0200X
License✔ Licensed in OR · D12404
Definition
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
Also ListedDentist · General PracticeTaxonomy 1223G0001X · License 62120 (KS)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License RES-30679 (IA)
1602 NW HUGHWOOD CT, Roseburg, OR 97471
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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 Alex Hsieh's NPI number?

The NPI number for Alex Hsieh is 1194404665. It was assigned to this individual provider in the NPPES registry on July 12, 2023.

Where is Alex Hsieh located?

Alex Hsieh practices at 1602 NW Hughwood Ct, Roseburg, OR 97471. The listed phone number is (541) 440-9175.

What is Alex Hsieh's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Endodontics, with taxonomy code 1223E0200X.

When was this NPI record last updated?

The NPPES record for Alex Hsieh was last updated on July 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.