Peter Chalmers, MD
Orthopaedic Surgery · Saint Louis, MONPI 1518288323
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $541,204 of the $602,698 with a category attached, or 89.8%. 14 manufacturers reported payments, led by Medical Device Business Services, Inc. at 41.7% of the total. 2025 is the largest year on record at $183,593, 4.9 times the $37,839 reported in 2019. Among orthopaedic surgery clinicians in MO 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 420 payments — averaging $1435.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medical Device Business Services, Inc.$251K
- Exactech, Inc.$164K
- Depuy Synthes Products, Inc.$152K
- Responsive Arthroscopy Inc$10K
- Smith+Nephew$10K
- Encore Medical, LP$9K
- plus $7K from 8 others
Across 26 payments — averaging $2725.50 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Medical Device Business Services, Inc.$63K
- Smith+Nephew$8K
What the payments were for
- Royalty or licence$4,4341%
- Consulting fees$541,20490%
- Speaking & faculty fees$4,0001%
- Travel & lodging$43,7517%
- Food & beverage$9,1842%
- Education$1250%
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 |
|---|---|---|
| Medical Device Business Services, Inc. | 195 | $251,033 |
| Exactech, Inc. | 76 | $163,546 |
| Depuy Synthes Products, Inc. | 107 | $152,369 |
| Responsive Arthroscopy Inc | 8 | $10,134 |
| Smith+Nephew | 9 | $9,842 |
| Encore Medical, LP | 4 | $9,050 |
| Arthrex | 3 | $4,028 |
| Active Medical, LLC | 5 | $1,368 |
| Advita Ortho, LLC | 1 | $650 |
| Johnson & Johnson | 7 | $336 |
| Stryker | 2 | $169 |
| Gotham Surgical Solutions & Devices, Inc. | 1 | $128 |
| Medacta USA, Inc. | 1 | $24 |
| Restor3d, Inc. | 1 | $21 |
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.
- GLOBAL$233,046
- Velys$210,620
- BIOLOX DELTA$209,056
- EQUINOXE$136,589
- GRYPHON$31,118
- RIGIDLOOP$30,645
- HEALIX$30,149
- VAPR$29,855
- Responsive Arthroscopy Devices$10,134
- TWINFIX$9,050
- HEALIX KNOTLESS PEEK$6,129
- INHANCE$4,796
- Gryphon Orthocord$3,705
- EQUINOXE PHX SYSTEM$2,506
- DYNACORD$2,061
- NA$1,451
- BRISTOW-LATARJET$975
- VISUALIZATION$736
- TRUMATCH$579
- RECLAIM$486
How this compares
$602,698 in reported general payments places this provider in the 95th 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 |
|---|---|---|
| Celecoxib | 44 | $1,280 |
| CeftriaxoneCeftriaxone Sodium | 12 | $156 |
| Naproxen | 20 | $121 |
| Tramadol Hcl | 28 | $55 |
| Oxycodone Hcl | 20 | $50 |
| Methocarbamol | 11 | $30 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in Saint Louis
- Jay KeenerSaint Louis$2.2M
- John WatsonSaint Louis$1.7M
- 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
- David MingesSaint Louis$95K
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.