Highest-Volume Colonoscopy with Biopsy Surgeons in Connecticut (2026 update)
204 Connecticut providers billed Medicare for Colonoscopy with Biopsy (CPT 45380) in 2024. The top 10 by case volume are below — the full ranked list, CSV export and competitor-payment intel are available with a DocVol subscription ($199/mo, cancel anytime).
Database refreshed July 2026Live NPPES registryⓘ sources
| # | Surgeon | Location | Medicare cases (2024) |
|---|---|---|---|
| 1 | Alan Selkin, M.D. | Greenwich, CT | 199 |
| 2 | Neda Khaghan, M.D. | Greenwich, CT | 194 |
| 3 | Suma Magge, MD | Stamford, CT | 190 |
| 4 | Felice Zwas, M.D. | Greenwich, CT | 181 |
| 5 | Joseph Fiorito, M.D. | Danbury, CT | 177 |
| 6 | Anne Liu, M.D. | New Haven, CT | 169 |
| 7 | Ajit Kokkat, M.D. | Willimantic, CT | 169 |
| 8 | Robert Dettmer, MD | Stamford, CT | 157 |
| 9 | Ajay Singh, M.D. | Norwalk, CT | 152 |
| 10 | Adam Gorelick, M.D. | Danbury, CT | 141 |
194 more Connecticut surgeons in the full list
Plus: who already pays them (Stryker? Medtronic? Arthrex?), CSV export for your CRM, and every other state and procedure.
Search the full databaseFrequently asked questions
- How many surgeons perform Colonoscopy with Biopsy in Connecticut?
- 204 Connecticut providers billed Medicare for Colonoscopy with Biopsy (CPT 45380) in CY2024. CMS suppresses providers with 10 or fewer Medicare patients, so the true count is somewhat higher.
- Where does this data come from?
- CMS Medicare Physician & Other Practitioners (fee-for-service Part B claims, CY2024, released May 2026) and CMS Open Payments. Both are official U.S. federal datasets.
- Does this include all of a surgeon's cases?
- No — it covers traditional Medicare only (no Medicare Advantage, commercial, or Medicaid claims). Absolute volumes undercount total practice, but the ranking of high- vs low-volume surgeons is a strong targeting signal.