Stephen Caldwell
Gastroenterology · Charlottesville, VANPI 1396814919
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $1,499 of the $1,953 with a category attached, or 76.8%. Kowa Research Institute, Inc. accounts for 97.2% of it on its own, with 2 other manufacturers making up the rest. That places this record below the midpoint for gastroenterology clinicians in VA, where the typical reported total is $3,407.
Across 4 payments — averaging $488.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Kowa Research Institute, Inc.$2K
- Siemens Medical Solutions USA, Inc.$49
- Echosens North America, Inc.$6
Across 322 payments — averaging $5657.22 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Gilead$900K
- E.r. Squibb & Sons, L.L.C.$509K
- Madrigal Pharmaceuticals$203K
- Ipsen Bioscience Inc.$71K
- Ultragenyx Pharmaceutical Inc.$49K
- Ipsen Pharma SAS$43K
- plus $46K from 3 others
What the payments were for
- Travel & lodging$1,49977%
- Food & beverage$45423%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Kowa Research Institute, Inc. | 2 | $1,898 |
| Siemens Medical Solutions USA, Inc. | 1 | $49 |
| Echosens North America, Inc. | 1 | $6 |
How this compares
$1,953 in reported general payments places this provider in the 35th percentile of 473 gastroenterology providers in Virginia.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| XifaxanRifaximin | 31 | $105,005 |
| Ursodiol | 87 | $10,934 |
| Entecavir | 14 | $4,430 |
| Lactulose | 27 | $1,374 |
| Mycophenolate Mofetil | 11 | $1,022 |
| Azathioprine | 26 | $703 |
| Omeprazole | 14 | $427 |
| Tenofovir Disoproxil Fumarate | 14 | $414 |
| Spironolactone | 24 | $328 |
| Pantoprazole Sodium | 14 | $324 |
| Prednisone | 22 | $249 |
| Carvedilol | 27 | $223 |
| Furosemide | 14 | $56 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Charlottesville
- Bryan SauerCharlottesville$540K
- Brian WentworthCharlottesville$276K
- Vanessa ShamiCharlottesville$210K
- David PeuraCharlottesville$103K
- Esteban FigueroaCharlottesville$66K
- Amir RummanCharlottesville$31K
- Michael McCabeCharlottesville$18K
- Fabio CominelliCharlottesville$15K
- Mohammad SiddiquiCharlottesville$15K
- Larry ClarkLynchburg$1.2M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.