Verified 2026 Physician Ranking

Top Gastroenterologists in Rhode Island, 2026

Published by Palm Beach County Medical Media Group · Last updated May 1, 2026

PBCMMG Excellence Certified \u2014 Recognizing Excellence in Healthcare

How this ranking was built: We applied PBCMMG's seven weighted criteria (board certification, years in active practice, disciplinary record, aggregate patient reviews, hospital affiliations, specialty training, peer recognition) to every gastroenterology physician with active credentialing in Rhode Island. Sources: NPPES Registry, ABMS, state medical boards, aggregated public review data. Last reviewed May 2026.

  1. #1

    Neil Greenspan, MD

    Addiction MedicineTexas, TX21+ years in practice

    Neil Greenspan, MD, practices gastroenterology in Texas, TX. NPI-verified active practice since 2005.

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  2. #2

    Thomas McGreen, MD

    GastroenterologyTexas, TX21+ years in practice

    Thomas McGreen, MD, practices gastroenterology in Texas, TX. NPI-verified active practice since 2005.

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  3. #3

    Joseph Pianka, MD

    GastroenterologyRhode Island, RI20+ years in practice

    Joseph Pianka, MD, practices gastroenterology in Rhode Island, RI. NPI-verified active practice since 2006.

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  4. #4

    Thomas Denucci, MD

    GastroenterologyRhode Island, RI20+ years in practice

    Thomas Denucci, MD, practices gastroenterology in Rhode Island, RI. NPI-verified active practice since 2006.

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  5. #5

    Christy Dibble, MD

    Addiction MedicineRhode Island, RI20+ years in practice

    Christy Dibble, MD, practices addiction medicine in Rhode Island, RI. NPI-verified active practice since 2006.

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  6. #6

    Lisa Mueller, MD

    GastroenterologyRhode Island, RI20+ years in practice

    Lisa Mueller, MD, practices gastroenterology in Rhode Island, RI. NPI-verified active practice since 2006.

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  7. #7

    Robert Bierwirth, MD

    GastroenterologyTexas, TX19+ years in practice

    Robert Bierwirth, MD, practices gastroenterology in Texas, TX. NPI-verified active practice since 2007.

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  8. #8

    Andrew Krane, MD

    GastroenterologyPennsylvania, PA5+ years in practice

    Andrew Krane, MD, practices gastroenterology in Pennsylvania, PA. NPI-verified active practice since 2021.

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