Anthony Kalloo, MD
Gastroenterology · Baltimore, MDNPI 1881638153
Payments from drug & device makers
Across 30 payments — averaging $167.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$3K
- Boston Scientific$706
- Pentax Of America, Inc.$510
- Omega Medical Imaging, LLC$395
- AbbVie$354
- Covidien LP$200
- plus $365 from 4 others
What the payments were for
- Speaking & faculty fees$2,50050%
- Food & beverage$2,53150%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $2,500 |
| Boston Scientific | 9 | $706 |
| Pentax Of America, Inc. | 3 | $510 |
| Omega Medical Imaging, LLC | 1 | $395 |
| AbbVie | 9 | $354 |
| Covidien LP | 2 | $200 |
| Johnson & Johnson | 2 | $149 |
| Apollo Endosurgery US Inc | 1 | $115 |
| Cook Medical LLC | 1 | $85 |
| Olympus America Inc. | 1 | $16 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- RELISTOR$2,500
- XIFAXAN$2,500
- SPYGLASS$148
- Tremfya$137
- GENERAL - BILIARY DEVICES$120
- Beacon$119
- Creon$116
- Overstitch$115
- Orbera$115
- GENERAL - THERAPIES$107
- WALLFLEX$103
How this compares
$5,031 in reported general payments places this provider in the 60th percentile of 455 gastroenterology providers in Maryland.
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.
Other gastroenterology in Baltimore
- Kenolisa OnwuemeBaltimore$4.5M
- Paul ThuluvathBaltimore$3.6M
- Marcia CantoBaltimore$1.6M
- Raymond CrossBaltimore$1.2M
- Sergey KantsevoyBaltimore$1.1M
- Anurag MaheshwariBaltimore$1.1M
- Mouen KhashabBaltimore$670K
- Alyssa ParianBaltimore$638K
- Aline Charabaty PishvaianBaltimore$631K
- James HamiltonBaltimore$307K
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.