Christopher Yopp, MD
Anesthesiology · Milwaukee, WINPI 1588907430
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $9,857 of the $13,298 with a category attached, or 74.1%. It is spread thinly across 16 manufacturers, the largest accounting for just 22.3%. Reporting peaked in 2022 at $6,055 and has fallen 77.6% since, to $1,355 in 2025. Among anesthesiology clinicians in WI 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 177 payments — averaging $75.13 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$3K
- Nevro Corp.$2K
- Spinal Simplicity, LLC$2K
- Relievant Medsystems, Inc.$2K
- Painteq LLC$1K
- Medtronic$951
- plus $2K from 10 others
What the payments were for
- Travel & lodging$2,53919%
- Food & beverage$9,85774%
- Education$9017%
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 |
|---|---|---|
| Boston Scientific | 39 | $2,967 |
| Nevro Corp. | 30 | $2,456 |
| Spinal Simplicity, LLC | 41 | $2,144 |
| Relievant Medsystems, Inc. | 8 | $1,528 |
| Painteq LLC | 7 | $1,213 |
| Medtronic(2 entities) | 19 | $951 |
| SPR Therapeutics, Inc | 7 | $803 |
| Abbott | 10 | $360 |
| Globus Medical | 2 | $290 |
| Vertex | 3 | $189 |
| Biotronik NRO, Inc. | 2 | $173 |
| Nalu Medical, Inc. | 3 | $76 |
| AbbVie | 3 | $55 |
| Vertos Medical, Inc. | 1 | $34 |
| MML US, Inc. | 1 | $31 |
| Averitas Pharma Inc. | 1 | $29 |
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.
- Intracept$3,184
- Senza$1,391
- HA MINUTEMAN G3-R$1,353
- PAINTEQ$1,029
- Superion Indirect Decompression System$919
- SPRINT PNS System$685
- Omnia$681
- WaveWriter Alpha Prime 16$465
- INTELLIS$317
- GENERAL PAIN MANAGEMENT$265
- SYNCHROMEDII$165
- Prospera$147
- RESTORE$134
- JOURNAVX$125
- Axium$125
- SPECTRA WAVEWRITER$117
How this compares
$13,298 in reported general payments places this provider in the 95th percentile of 960 anesthesiology providers in Wisconsin.
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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 43 | $1,304 |
| Pregabalin | 11 | $172 |
Paid to pharmacies, not to this prescriber.
Other anesthesiology in Milwaukee
- Jens KrombachMilwaukee$24K
- Jesse EhrenfeldMilwaukee$21K
- Lai KuangMilwaukee$14K
- James DucantoMilwaukee$12K
- Nosheen HasanMilwaukee$9K
- Marc EisemanMilwaukee$8K
- Justin KoMilwaukee$7K
- Dongyuan ChengMilwaukee$6K
- Hemanckur MakkerMilwaukee$6K
- Chenyang ZhangMilwaukee$6K
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.