Tony Chien, DO
Orthopaedic Surgery · Saint Louis, MONPI 1477617025
Payments from drug & device makers
What this record shows
This record is dominated by other: $4,158 of the $4,702 with a category attached, or 88.4%. Johnson & Johnson accounts for 88.8% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2021 at $4,265 and has fallen 95.7% since, to $184 in 2025. That places this record below the midpoint for orthopaedic surgery clinicians in MO, where the typical reported total is $4,809.
Across 27 payments — averaging $174.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$4K
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$121
- Lilly USA, LLC$111
- Novo Nordisk$107
- Merck$41
- Phadia US Inc.$33
- plus $113 from 5 others
What the payments were for
- Food & beverage$54412%
- Other$4,15888%
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 |
|---|---|---|
| Johnson & Johnson(2 entities) | 2 | $4,176 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $121 |
| Lilly USA, LLC | 7 | $111 |
| Novo Nordisk | 7 | $107 |
| Merck | 2 | $41 |
| Phadia US Inc. | 2 | $33 |
| AbbVie | 1 | $29 |
| Shire North American Group Inc | 2 | $28 |
| Smith+Nephew | 1 | $22 |
| Collegium Pharmaceutical, Inc. | 1 | $17 |
| Protega Pharmaceutials Inc | 1 | $16 |
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.
- RELISTOR$121
How this compares
$4,702 in reported general payments places this provider in the 45th percentile of 455 orthopaedic surgery providers in Missouri.
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 | 1,793 | $40,024 |
| Celecoxib | 846 | $35,265 |
| Tizanidine Hcl | 887 | $11,281 |
| Diclofenac Sodium | 935 | $9,645 |
| Pregabalin | 234 | $7,666 |
| Tramadol Hcl | 493 | $6,173 |
| Gabapentin | 362 | $4,830 |
| Oxycodone Hcl | 292 | $4,683 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 151 | $4,201 |
| Fentanyl | 17 | $2,495 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 63 | $2,193 |
| Ropinirole Hcl | 252 | $1,737 |
| Baclofen | 126 | $1,304 |
| Naproxen | 116 | $1,244 |
| Cyclobenzaprine Hcl | 124 | $1,080 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Saint Louis
- Jay KeenerSaint Louis$2.2M
- John WatsonSaint Louis$1.7M
- Peter ChalmersSaint Louis$603K
- Lionel MetzSaint Louis$428K
- Jon CarlsonSaint Louis$354K
- Alexander AleemSaint Louis$230K
- Rhoderic MirkinSaint Louis$209K
- Sridhar PinnamaneniSaint Louis$188K
- Kenneth SmithSaint Louis$119K
- Benjamin ZmistowskiSaint Louis$118K
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.