Hammam Shereef, MD
Internal Medicine · Milwaukee, WINPI 1982184156
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (37.8%), grants and food and beverage — rather than concentrated in one kind of arrangement. 14 manufacturers reported payments, led by Abbott at 32.2% of the total. 2025 is the largest year on record at $23,959, more than ten times the $256 reported in 2019. Among internal medicine clinicians in WI with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 282 payments — averaging $195.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$18K
- Boston Scientific$14K
- Medtronic$11K
- Biotronik Inc.$8K
- Biosense Webster, Inc.$3K
- Medical Device Business Services, Inc.$917
- plus $919 from 8 others
What the payments were for
- Grants$20,41737%
- Travel & lodging$20,76238%
- Food & beverage$12,66023%
- Education$1,1522%
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 |
|---|---|---|
| Abbott | 77 | $17,733 |
| Boston Scientific | 43 | $13,620 |
| Medtronic | 50 | $10,542 |
| Biotronik Inc. | 55 | $7,978 |
| Biosense Webster, Inc. | 37 | $3,283 |
| Medical Device Business Services, Inc. | 9 | $917 |
| Johnson & Johnson | 3 | $271 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 2 | $145 |
| Novartis | 1 | $125 |
| Amgen | 1 | $125 |
| Asahi Intecc USA, Inc. | 1 | $103 |
| Actelion Pharmaceuticals US, Inc. | 1 | $86 |
| Philips North America LLC | 1 | $33 |
| Irhythm Technologies, Inc. | 1 | $31 |
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.
- Carto 3$3,161
- Farapulse$2,904
- ENSITE PRECISION$2,782
- ENSITE$2,749
- ASSURITY$2,625
- GENERAL EP$2,437
- TACTICATH$1,875
- Acticor 7 VR-T DX$1,332
- Micra$1,161
- VersaCross Access Solution$1,004
- PAMIRA$773
- AVEIR$752
- GALLANT$690
- BioMonitor$559
- Solia$559
- Edora 8 DR-T$559
- Rivacor 7 DR-T$559
- WATCHMAN Access System$147
- WATCHMAN FLX$141
- ENTRESTO$125
How this compares
$54,991 in reported general payments places this provider in the 95th percentile of 1,411 internal medicine providers in Wisconsin.
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 |
|---|---|---|
| Metoprolol Succinate | 23 | $451 |
| Doxycycline Hyclate | 17 | $133 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Milwaukee
- Jeremiah DeptaMilwaukee$723K
- Erik StilpMilwaukee$116K
- Muhammad ZamanMilwaukee$37K
- Turgut ZiaMilwaukee$17K
- Mohammad KhanMilwaukee$16K
- Leonard EgedeMilwaukee$12K
- Malik AliMilwaukee$12K
- Mohammed NwilatiMilwaukee$10K
- Champalal GuptaMilwaukee$9K
- David RayanMilwaukee$8K
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.