William Hahn, MD

Gastroenterology · Family Medicine · Infectious Disease

17+ years in practiceNPI: 1164650347Licensed in WA

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Credentials & Recognition

Specialties

GastroenterologyFamily MedicineInfectious Disease

NPI sub-specialties

Internal Medicine207R00000X

Internal Medicine, Infectious Disease207RI0200X

Practice Signals

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

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

17+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#16

Top Infectious Disease Doctors in Washington, 2026

Infectious Disease · Washington · 2026

Frequently Asked Questions about Dr. William Hahn, MD

Where does Dr. William Hahn, MD practice?+
Dr. William Hahn, MD practices in California, CA. 325 9TH AVE SEATTLE, WA 981042420.
What is Dr. William Hahn, MD's phone number?+
Dr. William Hahn, MD's practice phone is 206-520-5000. Office contact information is verified on the PBCMMG profile.
What does Dr. William Hahn, MD specialize in?+
Dr. William Hahn, MD's primary specialty is Gastroenterology, with additional focus on Family Medicine, Infectious Disease.
Is Dr. William Hahn, MD board certified?+
Board certification status for Dr. William Hahn, 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. William Hahn, MD been practicing?+
Dr. William Hahn, MD has been in active practice for 17+ years, based on NPI enumeration and state licensing records.
What is Dr. William Hahn, MD's NPI number?+
Dr. William Hahn, MD's National Provider Identifier (NPI) is 1164650347, 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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