Jack Chen, DO

Addiction Medicine · Internal Medicine · Rheumatology

12+ years in practiceNPI: 1821400367Licensed in OR

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Credentials & Recognition

Specialties

Addiction MedicineInternal MedicineRheumatology

NPI sub-specialties

Internal Medicine, Rheumatology207RR0500X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

12+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#5

Top Rheumatologists in Oregon, 2026

Rheumatology · Oregon · 2026

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Frequently Asked Questions about Dr. Jack Chen, DO

Where does Dr. Jack Chen, DO practice?+
Dr. Jack Chen, DO practices in Oregon, OR. 3620 NW SAMARITAN DR STE 202 CORVALLIS, OR 973303785.
What is Dr. Jack Chen, DO's phone number?+
Dr. Jack Chen, DO's practice phone is 541-768-5800. Office contact information is verified on the PBCMMG profile.
What does Dr. Jack Chen, DO specialize in?+
Dr. Jack Chen, DO's primary specialty is Addiction Medicine, with additional focus on Internal Medicine, Rheumatology.
Is Dr. Jack Chen, DO board certified?+
Board certification status for Dr. Jack Chen, DO has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Jack Chen, DO been practicing?+
Dr. Jack Chen, DO has been in active practice for 12+ years, based on NPI enumeration and state licensing records.
What is Dr. Jack Chen, DO's NPI number?+
Dr. Jack Chen, DO's National Provider Identifier (NPI) is 1821400367, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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