Robert Hamburg
Interventional Cardiology · Chandler, AZNPI 1053387563
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 93.6% of the total across 147 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 24 manufacturers, the largest accounting for just 18.9% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $1,660 and has fallen 98.6% since, to $23 in 2023. That places this record below the midpoint for interventional cardiology clinicians in AZ, where the typical reported total is $10,657.
Across 147 payments — averaging $18.45 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$511
- Johnson & Johnson$336
- Astellas Pharma US Inc$293
- Boston Scientific$219
- Abbott$201
- Chiesi USA, Inc.$153
- plus $999 from 18 others
What the payments were for
- Food & beverage$2,53994%
- Education$1736%
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 |
|---|---|---|
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 30 | $511 |
| Johnson & Johnson(2 entities) | 26 | $336 |
| Astellas Pharma US Inc | 8 | $293 |
| Boston Scientific | 9 | $219 |
| Abbott | 5 | $201 |
| Chiesi USA, Inc. | 9 | $153 |
| AstraZeneca | 8 | $125 |
| Amarin Pharma, Inc. | 6 | $123 |
| Bardy Diagnostics, Inc. | 6 | $105 |
| Boehringer Ingelheim | 5 | $91 |
| Novartis | 6 | $85 |
| Edwards Lifesciences | 3 | $78 |
| Sanofi-aventis U.S. LLC | 4 | $65 |
| Abiomed | 4 | $54 |
| E.r. Squibb & Sons, L.L.C. | 4 | $50 |
| Medtronic | 3 | $50 |
| Irhythm Technologies, Inc. | 2 | $35 |
| Gilead | 2 | $29 |
| Pfizer | 2 | $28 |
| Regeneron Healthcare Solutions, Inc. | 1 | $22 |
| Arbor Pharmaceuticals, Inc. | 1 | $17 |
| Kowa Pharmaceuticals America, Inc. | 1 | $16 |
| Acacia Pharma Inc | 1 | $14 |
| Amgen | 1 | $13 |
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.
- Confirm Rx$136
How this compares
$2,712 in reported general payments places this provider in the 15th percentile of 223 interventional cardiology providers in Arizona.
Other interventional cardiology in Chandler
- Pratik DalalChandler$142K
- Ashish PershadChandler$112K
- Prakash BalanChandler$85K
- Abhishek SawantChandler$81K
- Kush AgrawalChandler$44K
- Georges NseirChandler$21K
- Paul SorajjaPhoenix$1.1M
- Hursh NaikAvondale$781K
- Thomas WaggonerTucson$617K
- Timothy ByrnePhoenix$614K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.