John Zawacki, MD

Gastroenterology

21+ years in practiceNPI: 1215910427Licensed in MA

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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

Years in Practice

21+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#35

Top Gastroenterologists in Massachusetts, 2026

Gastroenterology · Massachusetts · 2026

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Frequently Asked Questions about Dr. John Zawacki, MD

Where does Dr. John Zawacki, MD practice?+
Dr. John Zawacki, MD practices in Massachusetts, MA. 55 LAKE AVE N DEPARTMENT OF GASTROENTEROLOGY WORCESTER, MA 016550002.
What is Dr. John Zawacki, MD's phone number?+
Dr. John Zawacki, MD's practice phone is 508-856-3069. Office contact information is verified on the PBCMMG profile.
What does Dr. John Zawacki, MD specialize in?+
Dr. John Zawacki, MD's primary specialty is Gastroenterology.
Is Dr. John Zawacki, MD board certified?+
Board certification status for Dr. John Zawacki, 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. John Zawacki, MD been practicing?+
Dr. John Zawacki, MD has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. John Zawacki, MD's NPI number?+
Dr. John Zawacki, MD's National Provider Identifier (NPI) is 1215910427, 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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