Michael Trambert, MD
Diagnostic Radiology · Santa Barbara, CANPI 1396744801
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $436,014 of the $499,258 with a category attached, or 87.3%. Merge Healthcare Incorporated accounts for 80.9% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2020 at $191,100 and has fallen 100.0% since, to $42 in 2025. Among diagnostic radiology clinicians in CA 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 70 payments — averaging $7132.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merge Healthcare Incorporated$404K
- Change Healthcare Technologies, LLC$55K
- Hologic Inc$41K
- Barco, Inc.$42
What the payments were for
- Consulting fees$436,01487%
- Travel & lodging$22,5635%
- Food & beverage$370%
- Gifts$420%
- Ownership interest$35,6817%
- Other$4,9221%
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 |
|---|---|---|
| Merge Healthcare Incorporated | 55 | $404,106 |
| Change Healthcare Technologies, LLC | 12 | $54,507 |
| Hologic Inc | 2 | $40,603 |
| Barco, Inc. | 1 | $42 |
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.
- iCEA$74,248
- Change Healthcare Stratus Imaging PACS$54,480
- PACS$21,000
How this compares
$499,258 in reported general payments places this provider in the 95th percentile of 3,537 diagnostic radiology providers in California.
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 Santa Barbara
- Murray ReicherSan Diego$10.5M
- Agnes SantosaSan Diego$884K
- Robert SuhLos Angeles$758K
- Jonathan ChungSan Diego$747K
- Gary UlanerLos Angeles$687K
- Garry GoldStanford$528K
- Michael DakeStanford$492K
- Ira SmalbergSanta Monica$451K
- Yingbing WangSan Francisco$403K
- Mary YamashitaLos Angeles$358K
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.