Brian Greenberg, MD

Allergy & Immunology · Rheumatology

19+ years in practiceNPI: 1609074723Licensed in CALicensed in CTLicensed in OR

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Credentials & Recognition

Specialties

Allergy & ImmunologyRheumatology

NPI sub-specialties

Internal Medicine, Rheumatology207RR0500X

Internal Medicine, Rheumatology207RR0500X

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

19+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#46

Top Rheumatologists in Oregon, 2026

Rheumatology · Oregon · 2026

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Frequently Asked Questions about Dr. Brian Greenberg, MD

Where does Dr. Brian Greenberg, MD practice?+
Dr. Brian Greenberg, MD practices in California, CA. 3550 N INTERSTATE AVE PORTLAND, OR 972271196.
What is Dr. Brian Greenberg, MD's phone number?+
Dr. Brian Greenberg, MD's practice phone is 800-813-2000. Office contact information is verified on the PBCMMG profile.
What does Dr. Brian Greenberg, MD specialize in?+
Dr. Brian Greenberg, MD's primary specialty is Allergy & Immunology, with additional focus on Rheumatology.
Is Dr. Brian Greenberg, MD board certified?+
Board certification status for Dr. Brian Greenberg, MD 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. Brian Greenberg, MD been practicing?+
Dr. Brian Greenberg, MD has been in active practice for 19+ years, based on NPI enumeration and state licensing records.
What is Dr. Brian Greenberg, MD's NPI number?+
Dr. Brian Greenberg, MD's National Provider Identifier (NPI) is 1609074723, 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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