Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Andrew Tzong-Yow Chen, D.O.

Q: What is the NPI number for Andrew Chen?

The National Provider Identifier (NPI) for Andrew Chen is 1124081096, a Type 1 (individual) record in the CMS NPPES registry.

Hematology & Oncology Physician in Bend, OR · enumerated 2006.

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

National Provider Identifier

1124081096

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Registry record

Entity type Individual (Type 1)

Name Dr. Andrew Tzong-Yow Chen

Credential D.O.

Sex Male

Practice address 2500 Ne Neff Rd, Bend, OR, 97701

Phone (541) 706-5800

Fax (541) 706-5911

Enumeration date Apr 10, 2006

Last updated in NPPES Jan 3, 2023

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License DO25841 (OR) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

What is the NPI number for Andrew Chen?

The National Provider Identifier (NPI) for Andrew Chen is 1124081096, a Type 1 (individual) record in the CMS NPPES registry.

Where does Andrew Chen practice?

The practice location on file with NPPES is in Bend, OR. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-03.