Benjamin Siemanowski, MD

Gastroenterology

19+ years in practiceNPI: 1548301120Licensed in WA

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Credentials & Recognition

Specialties

Gastroenterology

NPI sub-specialties

Internal Medicine, Gastroenterology207RG0100X

Practice Signals

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

Mid-Level (PA/NP) Use

Doctor-led visits

Google Reviews

5.0 / 5.0

4 reviews

Years in Practice

19+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#55

Top Gastroenterologists in Washington, 2026

Gastroenterology · Washington · 2026

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Frequently Asked Questions about Dr. Benjamin Siemanowski, MD

Where does Dr. Benjamin Siemanowski, MD practice?+
Dr. Benjamin Siemanowski, MD practices in Washington, WA. 3111 WOBURN ST STE 201 BELLINGHAM, WA 982266610.
What is Dr. Benjamin Siemanowski, MD's phone number?+
Dr. Benjamin Siemanowski, MD's practice phone is 360-734-1420. Office contact information is verified on the PBCMMG profile.
What does Dr. Benjamin Siemanowski, MD specialize in?+
Dr. Benjamin Siemanowski, MD's primary specialty is Gastroenterology.
Is Dr. Benjamin Siemanowski, MD board certified?+
Board certification status for Dr. Benjamin Siemanowski, 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. Benjamin Siemanowski, MD been practicing?+
Dr. Benjamin Siemanowski, MD has been in active practice for 19+ years, based on NPI enumeration and state licensing records.
What is Dr. Benjamin Siemanowski, MD's NPI number?+
Dr. Benjamin Siemanowski, MD's National Provider Identifier (NPI) is 1548301120, 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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