Paul Timperman, MD
Vascular & Interventional Radiology · West Lafayette, INNPI 1043279391
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $1,256,443 of the $1,267,097 with a category attached, or 99.2%. Cook Research Incorporated accounts for 95.9% of it on its own, with 12 other manufacturers making up the rest. Reporting peaked in 2022 at $229,574 and has fallen 57.5% since, to $97,636 in 2025. Among vascular & interventional radiology clinicians in IN 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 171 payments — averaging $7409.92 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Cook Research Incorporated$1.2M
- Cook Incorporated$41K
- Cook Medical LLC$8K
- Profound Medical Corp.$2K
- Medtronic$207
- Endologix LLC$39
- plus $163 from 7 others
Across 9 payments — averaging $8720.46 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Cook Incorporated$69K
- Cook Biotech Incorporated$10K
What the payments were for
- Consulting fees$1,256,44399%
- Travel & lodging$8,9251%
- Food & beverage$1,7300%
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 |
|---|---|---|
| Cook Research Incorporated | 113 | $1,215,333 |
| Cook Incorporated | 10 | $41,110 |
| Cook Medical LLC | 26 | $8,247 |
| Profound Medical Corp. | 2 | $1,999 |
| Medtronic(2 entities) | 11 | $207 |
| Endologix LLC | 1 | $39 |
| Edwards Lifesciences | 2 | $35 |
| Cardiovascular Systems Inc. | 1 | $32 |
| MF MED | 1 | $30 |
| GE HealthCare | 1 | $20 |
| Terumo Medical Corporation | 1 | $18 |
| Siemens Medical Solutions USA, Inc. | 1 | $14 |
| Argon Medical Devices, Inc. | 1 | $14 |
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.
- Cook$6,764
- Tulsa-Pro$1,999
- PROFUSION THERAPEUTIC INFUSION NEEDLE$1,021
How this compares
$1,267,097 in reported general payments places this provider in the 95th percentile of 74 vascular & interventional radiology providers in Indiana.
See all vascular & interventional radiology providers in Indiana →
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 |
|---|---|---|
| Alprazolam | 12 | $7 |
Paid to pharmacies, not to this prescriber.
Other vascular & interventional radiology in West Lafayette
- Daniel SahleinCarmel$845K
- Sabah ButtyMishawaka$275K
- Jeffrey RamkaransinghIndianapolis$274K
- Brandon MartinezFishers$226K
- Nazar GolewaleMerrillville$224K
- Kannan NatarajanIndianapolis$188K
- Katharine KrolLafayette$155K
- Matthew JohnsonIndianapolis$92K
- Ramon HalumGreenwood$81K
- Paul HasteIndianapolis$75K
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.