Colonoscopy Providers in Columbia, MD

1. 1
   Howard County Gastrointestinal Diagnostic Ctr, LLC

   Endoscopy Clinic/Center · Columbia, MD

   1,684 Medicare services (2024)

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2. 2
   Cascades Endoscopy Center, LLC

   Ambulatory Surgical Clinic/Center · Columbia, MD

   469 Medicare services (2024)

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3. 3
   Johns Hopkins Surgery Centers Series

   Ambulatory Surgical Clinic/Center · Columbia, MD

   425 Medicare services (2024)

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4. 4
   Preston KimM.D.

   Gastroenterology Physician · Columbia, MD

   362 Medicare services (2024)

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5. 5
   Richard AndorskyM.D.

   Gastroenterology Physician · Columbia, MD

   309 Medicare services (2024)

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6. 6
   Kester CrosseM.D.

   Gastroenterology Physician · Columbia, MD

   290 Medicare services (2024)

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7. 7
   Biju AlexM.D.

   Gastroenterology Physician · Columbia, MD

   276 Medicare services (2024)

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8. 8
   Grishma JoyM.D.

   Gastroenterology Physician · Columbia, MD

   224 Medicare services (2024)

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9. 9
   Jeffery Van Den BroekD.O.

   Gastroenterology Physician · Columbia, MD

   179 Medicare services (2024)

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10. 10
    Rudrajit RaiMD

    Gastroenterology Physician · Columbia, MD

    164 Medicare services (2024)

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11. 11
    Pia PrakashM.D.

    Gastroenterology Physician · Columbia, MD

    149 Medicare services (2024)

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12. 12
    Monica PassiM.D.

    Gastroenterology Physician · Columbia, MD

    141 Medicare services (2024)

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13. 13
    Russell SchubD.O.

    Gastroenterology Physician · Columbia, MD

    139 Medicare services (2024)

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14. 14
    Ekta GuptaM.D.

    Gastroenterology Physician · Columbia, MD

    137 Medicare services (2024)

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15. 15
    Eduardo Castillo Del CastilloM.D.

    Gastroenterology Physician · Columbia, MD

    116 Medicare services (2024)

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16. 16
    April TignorM.D.

    Gastroenterology Physician · Columbia, MD

    91 Medicare services (2024)

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17. 17
    Alexander Mamunes

    Gastroenterology Physician · Columbia, MD

    56 Medicare services (2024)

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18. 18
    Shaffer MokM.D.

    Gastroenterology Physician · Columbia, MD

    35 Medicare services (2024)

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Counts and ordering reflect Medicare fee-for-service claims (2024) from the CMS Medicare Physician & Other Practitioners dataset — a 65+ subset, not all care, and not a quality, outcome, or "best" ranking. Absence from this list does not mean a provider does not perform colonoscopy. Source: CMS NPPES (June 2026).