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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  9. #9

    Eric Newton, MD

    GastroenterologyRhode Island, RI19+ years in practice
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  10. #10

    George Cholankeril, MD

    Addiction MedicineCalifornia, CA13+ years in practice
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  11. #11

    David Schreiber, MD

    GastroenterologyTexas, TX21+ years in practice
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  12. #12

    Sean Fine, MD

    GastroenterologyRhode Island, RI15+ years in practice
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  13. #13

    Colin Woodard, DO

    GastroenterologyTexas, TX13+ years in practice
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  14. #14

    Shannon Simmons, MD

    GastroenterologyRhode Island, RI13+ years in practice
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  15. #15

    Ronan Farrell, MD

    GastroenterologyMassachusetts, MA11+ years in practice
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  16. #16

    Amer Malik, MD

    GastroenterologyRhode Island, RI21+ years in practice
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  17. #17

    Jeanette Smith, MD

    GastroenterologyRhode Island, RI18+ years in practice
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  18. #18

    Morris Elevado, MD

    GastroenterologyTexas, TX21+ years in practice
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  19. #19

    Pranith Perera, MD

    Addiction MedicineTexas, TX18+ years in practice
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  20. #20

    Julia Ding, MD

    Addiction MedicineMassachusetts, MA9+ years in practice
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  21. #21

    Tanuj Sharma, MD

    GastroenterologyRhode Island, RI11+ years in practice
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  22. #22

    Florence Hosseini Aslinia, MD

    GastroenterologyGeorgia, GA20+ years in practice
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  23. #23

    Daniel Greenwald, MD

    Addiction MedicineTexas, TX13+ years in practice
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  24. #24

    Lisa Panzini, MD

    GastroenterologyMichigan, MI19+ years in practice
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  25. #25

    Nikhil Karanth, MD

    Addiction MedicineRhode Island, RI20+ years in practice
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  26. #26

    Vincent Vacca, MD

    GastroenterologyAlabama, AL21+ years in practice
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  27. #27

    Steven Yolen, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  28. #28

    Alexander Harmatz, MD

    GastroenterologyPennsylvania, PA20+ years in practice
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  29. #29

    Jason Ferreira, MD

    GastroenterologyNew Hampshire, NH17+ years in practice
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  30. #30

    Antoine Hadamard, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  31. #31

    Nnenna Okpara, MD

    Addiction MedicineRhode Island, RI20+ years in practice
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  32. #32

    Jeffrey Nadelson, MD

    Addiction MedicineTennessee, TN15+ years in practice
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  33. #33

    Joseph Lowney, DO

    GastroenterologyRhode Island, RI21+ years in practice
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  34. #34

    Brendan Chen, MD

    Addiction MedicineMassachusetts, MA9+ years in practice
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  35. #35

    Eric Berthiaume, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  36. #36

    Tian Gao, MD

    GastroenterologyTexas, TX17+ years in practice
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  37. #37

    Paul Roderick, MD

    GastroenterologyRhode Island, RI21+ years in practice
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  38. #38

    Nithin Karanth, MD

    GastroenterologyMassachusetts, MA18+ years in practice
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  39. #39

    Mena Bakhit, MD

    GastroenterologyMassachusetts, MA13+ years in practice
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  40. #40

    Philip Trupiano, DO

    GastroenterologyRhode Island, RI20+ years in practice
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  41. #41

    Jeremy Spector, MD

    GastroenterologyTexas, TX21+ years in practice
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  42. #42

    Edison Rodrigues, MD

    Internal MedicineTexas, TX21+ years in practice
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  43. #43

    Seth Kirschner, DO

    Addiction MedicineFlorida, FL15+ years in practice
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  44. #44

    Martin Ventoso, MD

    GastroenterologyRhode Island, RI6+ years in practice
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  45. #45

    Fadlallah Habr, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  46. #46

    Theodore Palumbo, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  47. #47

    Philip McAndrew, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  48. #48

    Nabil Toubia, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  49. #49

    Autumn Hines, DO

    GastroenterologyRhode Island, RI15+ years in practice
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  50. #50

    Joel Spellun, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  51. #51

    Zain Sobani, MD

    GastroenterologyConnecticut, CT13+ years in practice
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  52. #52

    Li Wang, MD

    Internal MedicineOhio, OH10+ years in practice
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  53. #53

    Leslie Cashel, MD

    GastroenterologyRhode Island, RI20+ years in practice
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  54. #54

    Breton Roussel, MD

    GastroenterologyRhode Island, RI10+ years in practice
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  55. #55

    George Powers, MD

    GastroenterologyRhode Island, RI21+ years in practice
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  56. #56

    Angela Fishman, DO

    GastroenterologyRhode Island, RI20+ years in practice
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  57. #57

    Colleen Kelly, MD

    Addiction MedicineMassachusetts, MA20+ years in practice
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  58. #58

    William Park, MD

    Addiction MedicineIllinois, IL20+ years in practice
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