Joseph Mammarappallil, PhD
Diagnostic Radiology · Durham, NCNPI 1659514727
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (50.5%), speaking fees and travel and lodging — rather than concentrated in one kind of arrangement. 15 manufacturers reported payments, led by Boehringer Ingelheim at 57.3% of the total. Among diagnostic radiology clinicians in NC 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 589 payments — averaging $1086.83 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boehringer Ingelheim$367K
- Galvanize Therapeutics, Inc$160K
- Bard Peripheral Vascular, Inc.$94K
- Polarean, Inc.$16K
- Intuitive Surgical$2K
- BD$334
- plus $1K from 9 others
What the payments were for
- Consulting fees$323,58351%
- Speaking & faculty fees$208,38033%
- Travel & lodging$84,09313%
- Food & beverage$23,9604%
- Entertainment$1250%
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 |
|---|---|---|
| Boehringer Ingelheim | 323 | $366,511 |
| Galvanize Therapeutics, Inc | 171 | $160,166 |
| Bard Peripheral Vascular, Inc. | 60 | $94,053 |
| Polarean, Inc. | 7 | $15,737 |
| Intuitive Surgical | 9 | $2,033 |
| BD | 4 | $334 |
| Siemens Medical Solutions USA, Inc. | 3 | $331 |
| Noah Medical Corporation | 3 | $228 |
| Boston Scientific | 2 | $197 |
| Sirtex Medical Inc | 2 | $182 |
| Heartflow, Inc. | 1 | $138 |
| ERBE USA Inc | 1 | $100 |
| Penumbra, Inc. | 1 | $99 |
| Artrya Ltd. | 1 | $17 |
| CMS Imaging, Inc. | 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.
- ALIYA SYSTEM$156,702
- OFEV$92,145
- XENOVIEW$15,635
- DA VINCI SP$1,278
- Da Vinci Surgical System$521
- Trek$328
- SIR-Spheres Microspheres$143
- FFRct$138
- MAGNETOM Sola$134
- Cryoablation needles$127
- VENOVO$126
- ErbeCryo2$100
How this compares
$640,140 in reported general payments places this provider in the 95th percentile of 1,085 diagnostic radiology providers in North Carolina.
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 diagnostic radiology in Durham
- Rendon NelsonDurham$1.4M
- Daniele MarinDurham$674K
- Brandon HowardDurham$237K
- Rajan GuptaDurham$183K
- Holman McAdamsDurham$89K
- Derek NguyenDurham$72K
- David EnterlineDurham$45K
- Lars GrimmDurham$44K
- Joseph CaoDurham$22K
- Sora YoonDurham$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.