Andrea Oh, MD
Diagnostic Radiology · Los Angeles, CANPI 1740417765
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $10,127 of the $11,225 with a category attached, or 90.2%. Siemens Medical Solutions USA, Inc. accounts for 99.7% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2023 at $10,737 and has fallen 97.5% since, to $273 in 2024. 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 40 payments — averaging $280.62 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Siemens Medical Solutions USA, Inc.$11K
- CSL Behring$24
- Olympus America Inc.$13
What the payments were for
- Travel & lodging$10,12790%
- Food & beverage$1,09810%
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 |
|---|---|---|
| Siemens Medical Solutions USA, Inc. | 38 | $11,188 |
| CSL Behring | 1 | $24 |
| Olympus America 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.
- NAEOTOM Alpha$1,628
- MAGNETOM Free.Max$1,504
- MAGNETOM Vida$246
How this compares
$11,225 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 Los Angeles
- Robert SuhLos Angeles$758K
- Gary UlanerLos Angeles$687K
- Mary YamashitaLos Angeles$358K
- Scott GenshaftLos Angeles$267K
- Arthur BaghdanianLos Angeles$219K
- Maud MorshediLos Angeles$187K
- Jonathan GoldinLos Angeles$168K
- Kathleen RuchalskiLos Angeles$155K
- Suzanne BashLos Angeles$113K
- Viktor SzederLos Angeles$73K
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.