Usman Barlass, MD
Internal Medicine · Chicago, ILNPI 1720469042
Payments from drug & device makers
Across 81 payments — averaging $101.59 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Olympus Corporation Of The Americas$6K
- Boston Scientific$815
- Apollo Endosurgery US Inc$803
- Takeda Pharmaceuticals U.S.A., Inc.$125
- Olympus America Inc.$53
- AbbVie$32
- plus $60 from 3 others
What the payments were for
- Travel & lodging$6,87884%
- Food & beverage$1,35116%
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 |
|---|---|---|
| Olympus Corporation Of The Americas | 54 | $6,341 |
| Boston Scientific | 14 | $815 |
| Apollo Endosurgery US Inc | 5 | $803 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $125 |
| Olympus America Inc. | 3 | $53 |
| AbbVie | 1 | $32 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $23 |
| Johnson & Johnson | 1 | $22 |
| Cook Medical LLC | 1 | $14 |
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.
How this compares
$8,229 in reported general payments places this provider in the 90th percentile of 5,182 internal medicine providers in Illinois.
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 |
|---|---|---|
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 206 | $4,188 |
| Pantoprazole Sodium | 146 | $1,989 |
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 68 | $1,250 |
| LoperamideLoperamide Hcl | 12 | $1,163 |
| Peg 3350-ElectrolyteSodium Chloride/Nahco3/Kcl/Peg | 32 | $812 |
| Famotidine | 45 | $797 |
| Ursodiol | 14 | $670 |
| Omeprazole | 46 | $606 |
| Lidocaine Hcl ViscousLidocaine Hcl | 13 | $225 |
| Ciprofloxacin Hcl | 13 | $118 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Chicago
- Dennis LevinsonChicago$25.3M
- Danny SugimotoChicago$4M
- Peter O DonnellChicago$3.9M
- Daniel CatenacciChicago$3.5M
- Patricia WalshChicago$2.1M
- Merle DiamondChicago$1.7M
- Mohammed KassemChicago$1.3M
- David BakerChicago$1M
- Azazuddin AhmedChicago$912K
- Daniel BergerChicago$861K
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.