Michael Hajdu, MD
Cardiovascular Disease · Iowa City, IANPI 1912955683
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.1% of the total across 164 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 19 manufacturers reported payments, led by E.r. Squibb & Sons, L.L.C. at 29.5% of the total. Reporting peaked in 2019 at $1,148 and has fallen 97.8% since, to $25 in 2023.
Across 164 payments — averaging $14.38 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$695
- Novartis$351
- Johnson & Johnson$306
- Pfizer$170
- Amgen$165
- Boehringer Ingelheim$115
- plus $557 from 13 others
What the payments were for
- Food & beverage$2,33699%
- Education$221%
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 |
|---|---|---|
| E.r. Squibb & Sons, L.L.C. | 57 | $695 |
| Novartis | 20 | $351 |
| Johnson & Johnson | 23 | $306 |
| Pfizer | 11 | $170 |
| Amgen | 9 | $165 |
| Boehringer Ingelheim | 8 | $115 |
| AstraZeneca | 6 | $83 |
| Regeneron Healthcare Solutions, Inc. | 4 | $77 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 7 | $76 |
| Sanofi-aventis U.S. LLC | 5 | $70 |
| Lundbeck LLC | 3 | $43 |
| Amarin Pharma, Inc. | 3 | $42 |
| Merck | 2 | $38 |
| Bayer | 1 | $29 |
| Angiodynamics, Inc. | 1 | $28 |
| Itamar Medical Inc | 1 | $25 |
| Lantheus Medical Imaging, Inc. | 1 | $19 |
| Actelion Pharmaceuticals US, Inc. | 1 | $14 |
| Boston Scientific | 1 | $13 |
How this compares
$2,358 in reported general payments places this provider in the 65th percentile of 142 cardiovascular disease providers in Iowa.
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 cardiovascular disease in Iowa City
- Brian OlshanskyIowa City$219K
- Jennifer RobinsonIowa City$37K
- Kimberly StaffeyIowa City$7K
- Aaron SifuentesIowa City$5K
- Suvasini LakshmananIowa City$4K
- Rakesh PonnapureddyIowa City$3K
- Corina IorgoveanuIowa City$2K
- Boniface MalanguIowa City$2K
- Ferhaan AhmadIowa City$2K
- Brett JohnsonIowa City$2K
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.