Gabriel El-Kass, MD
Internal Medicine · Tucson, AZNPI 1821295353
Payments from drug & device makers
What this record shows
23 manufacturers reported payments, led by Angiodynamics, Inc. at 45.1% of the total. Reporting peaked in 2019 at $1,627 and has fallen 90.8% since, to $149 in 2025. Among internal medicine clinicians in AZ 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 47 payments — averaging $69.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Angiodynamics, Inc.$1K
- Baxter Healthcare$236
- Takeda Pharmaceuticals U.S.A., Inc.$175
- Amgen$172
- W. L. Gore & Associates, Inc.$151
- Vantive US Healthcare LLC$149
- plus $921 from 17 others
What the payments were for
- Food & beverage$1,73253%
- Education$1,55647%
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 |
|---|---|---|
| Angiodynamics, Inc. | 2 | $1,483 |
| Baxter Healthcare | 2 | $236 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $175 |
| Amgen(2 entities) | 5 | $172 |
| W. L. Gore & Associates, Inc. | 6 | $151 |
| Vantive US Healthcare LLC | 1 | $149 |
| Otsuka America Pharmaceutical, Inc. | 2 | $139 |
| Covidien LP | 1 | $131 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $101 |
| AstraZeneca | 4 | $80 |
| Mallinckrodt Hospital Products Inc. | 1 | $73 |
| Nxstage Medical, Inc. | 1 | $72 |
| Vifor Pharma, Inc. | 3 | $49 |
| Boston Scientific | 2 | $47 |
| Fresenius USA Marketing, Inc. | 2 | $38 |
| Medtronic | 2 | $35 |
| GSK | 2 | $34 |
| Bayer | 2 | $31 |
| Abbott | 1 | $25 |
| Lundbeck LLC | 1 | $24 |
| Bard Peripheral Vascular, Inc. | 1 | $16 |
| Travere Therapeutics, Inc. | 1 | $16 |
| OPKO Pharmaceuticals, LLC | 1 | $11 |
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.
- EVLT$1,483
- Renal - PD$274
- JYNARQUE$223
- Argyle$131
- LIVTENCITY$122
How this compares
$3,288 in reported general payments places this provider in the 90th percentile of 2,212 internal medicine providers in Arizona.
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 |
|---|---|---|
| Calcium Acetate | 17 | $1,420 |
| Lidocaine-PrilocaineLidocaine/Prilocaine | 15 | $233 |
| Losartan Potassium | 16 | $132 |
| Prednisone | 49 | $107 |
| Carvedilol | 12 | $65 |
| Hydralazine Hcl | 11 | $32 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Tucson
- Rajesh JanardhananTucson$685K
- Mona SelejTucson$440K
- Franz RischardTucson$55K
- Nebojsa SkrepnikTucson$48K
- Christine OxleyTucson$44K
- Muhammad HusnainTucson$19K
- Steven WoolTucson$19K
- Surekha BandlamuriTucson$17K
- Augusto PosadasTucson$15K
- Lisa EmmansTucson$14K
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.