Usman Rahim, MD
Gastroenterology · Orange, CANPI 1033310883
Payments from drug & device makers
What this record shows
This record is dominated by grants: $50,339 of the $59,204 with a category attached, or 85.0%. 24 manufacturers reported payments, led by Conmed Corporation at 56.3% of the total. Reporting peaked in 2022 at $33,633 and has fallen 92.9% since, to $2,398 in 2025. Among gastroenterology clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 114 payments — averaging $519.34 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Conmed Corporation$33K
- Cook Incorporated$17K
- Boston Scientific$6K
- Olympus Corporation Of The Americas$775
- AbbVie$381
- Fujifilm Healthcare Americas Corporation$347
- plus $1K from 18 others
What the payments were for
- Grants$50,33985%
- Travel & lodging$4,6898%
- Food & beverage$3,9207%
- Education$2560%
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 |
|---|---|---|
| Conmed Corporation | 1 | $33,333 |
| Cook Incorporated | 2 | $17,006 |
| Boston Scientific | 41 | $5,958 |
| Olympus Corporation Of The Americas | 2 | $775 |
| AbbVie | 22 | $381 |
| Fujifilm Healthcare Americas Corporation | 2 | $347 |
| Johnson & Johnson | 7 | $318 |
| Gilead | 15 | $285 |
| Pfizer | 1 | $145 |
| Medtronic | 1 | $107 |
| E.r. Squibb & Sons, L.L.C. | 1 | $107 |
| Cook Medical LLC | 1 | $104 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 4 | $81 |
| Ambu Inc. | 1 | $40 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $37 |
| Micro-tech Endoscopy USA, Inc. | 3 | $28 |
| ERBE USA Inc | 1 | $26 |
| Madrigal Pharmaceuticals | 1 | $25 |
| Mauna Kea Technologies, Inc. | 1 | $24 |
| Lucid Diagnostics Inc. | 1 | $18 |
| Dynavax Technologies Corporation | 1 | $15 |
| Daiichi Sankyo Inc. | 1 | $15 |
| Nestle Healthcare Nutrition Inc. | 1 | $15 |
| QOL 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.
- CONMED$33,333
- Apollo ESG NXT System$1,723
- Single Use Electrosurgical Knife KD-655$740
- DISPOSABLE DISTAL ATTACHMENT$740
- FUJIFILM$347
- EXALT Model D$156
- XELJANZ$145
- GI Genius$107
- FUSION$104
How this compares
$59,204 in reported general payments places this provider in the 90th percentile of 1,885 gastroenterology providers in California.
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 |
|---|---|---|
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 50 | $761 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 29 | $473 |
| Omeprazole | 21 | $184 |
| Pantoprazole Sodium | 19 | $157 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Orange
- Carl AlbersOrange$383K
- Jason SamarasenaOrange$330K
- Bennett RothLos Angeles$2.8M
- Douglas NguyenMission Viejo$2M
- Sammy SaabLos Angeles$1.9M
- Kenneth ChangNewport Beach$1.3M
- Joo HwangStanford$1M
- Drew SchembreWalnut Creek$659K
- Quan Nhula Jolla$641K
- Sadeea AbbasiLos Angeles$556K
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.