Robert Liu, DO
Anesthesiology · Louisville, KYNPI 1346771276
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (57.4%), food and beverage and grants — rather than concentrated in one kind of arrangement. 23 manufacturers reported payments, led by Abbott at 33.2% of the total. Reporting peaked in 2022 at $10,008 and has fallen 95.3% since, to $469 in 2025. Among anesthesiology clinicians in KY 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 125 payments — averaging $110.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$5K
- Medtronic$3K
- Boston Scientific$1K
- Spinal Simplicity, LLC$1K
- Nevro Corp.$589
- AOP Health US, LLC$442
- plus $2K from 17 others
What the payments were for
- Grants$1511%
- Travel & lodging$7,90857%
- Food & beverage$5,72342%
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 |
|---|---|---|
| Abbott | 23 | $4,580 |
| Medtronic | 24 | $3,414 |
| Boston Scientific | 15 | $1,499 |
| Spinal Simplicity, LLC | 9 | $1,250 |
| Nevro Corp. | 9 | $589 |
| AOP Health US, LLC | 2 | $442 |
| Si-bone, Inc. | 7 | $426 |
| Protega Pharmaceutials Inc | 6 | $317 |
| Pacira Pharmaceuticals Incorporated | 2 | $228 |
| Avanos Medical | 2 | $171 |
| Mallinckrodt Enterprises LLC | 3 | $142 |
| SPR Therapeutics, Inc | 3 | $128 |
| Vertos Medical, Inc. | 1 | $122 |
| Trevena, Inc. | 2 | $118 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 5 | $97 |
| AbbVie | 1 | $93 |
| Merck | 4 | $60 |
| IBSA Pharma Inc. | 2 | $26 |
| Scilex Pharmaceuticals Inc. | 1 | $19 |
| Mallinckrodt Hospital Products Inc. | 1 | $17 |
| Redhill Biopharma Inc. | 1 | $17 |
| Vertex | 1 | $17 |
| Grifols USA, LLC | 1 | $11 |
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.
- PROCLAIM$4,308
- VANTA ADAPTIVESTIM$2,278
- HA MINUTEMAN G3-R$1,126
- Rapiblyk$884
- Senza$309
- SPECTRA WAVEWRITER$300
- WAVEWRITER ALPHA$282
- KYPHON EXPRESS II KYPHOPAK TRAY$269
- EXPAREL$228
- SYNCHROMEDII$151
- WaveWriter Alpha Prime 16$131
- GENERATOR$127
- mild Device Kit$122
- OFIRMEV$120
- GENERAL PAIN MANAGEMENT$116
How this compares
$13,781 in reported general payments places this provider in the 95th percentile of 514 anesthesiology providers in Kentucky.
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 |
|---|---|---|
| Duloxetine Hcl | 17 | $3,461 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 44 | $1,412 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 51 | $989 |
| Gabapentin | 45 | $691 |
| Oxycodone Hcl | 14 | $564 |
| Pregabalin | 21 | $295 |
| Tizanidine Hcl | 21 | $289 |
| Cyclobenzaprine Hcl | 13 | $29 |
Paid to pharmacies, not to this prescriber.
Other anesthesiology in Louisville
- Rainer LenhardtLouisville$398K
- Laura ClarkLouisville$168K
- Richard MorrisLouisville$58K
- Jiapeng HuangLouisville$39K
- Blake EvansLouisville$33K
- Harini ChennaLouisville$12K
- Patrick ShanahanLouisville$12K
- Alexander SinofskyLouisville$11K
- Stamatis BaronosLouisville$9K
- Randall CampbellLouisville$5K
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.