Keith Lonergan, MD
Sports Medicine · Greer, SCNPI 1104962703
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (38.6%), speaking fees and education — rather than concentrated in one kind of arrangement. 21 manufacturers reported payments, led by Peerless Surgical Inc. at 38.1% of the total. Reporting peaked in 2021 at $5,857 and has fallen 80.7% since, to $1,131 in 2025.
Across 86 payments — averaging $188.87 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Peerless Surgical Inc.$6K
- Arthrex$6K
- Anika Therapeutics, Inc.$1K
- Stryker$718
- Zimmer Biomet$355
- Smith+Nephew$289
- plus $2K from 15 others
What the payments were for
- Speaking & faculty fees$5,00031%
- Travel & lodging$1,58510%
- Food & beverage$6,27139%
- Education$3,38721%
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 |
|---|---|---|
| Peerless Surgical Inc. | 26 | $6,182 |
| Arthrex | 9 | $5,719 |
| Anika Therapeutics, Inc. | 8 | $1,108 |
| Stryker | 9 | $718 |
| Zimmer Biomet | 4 | $355 |
| Smith+Nephew | 6 | $289 |
| Exactech, Inc. | 2 | $251 |
| Innovation Technologies Inc | 2 | $246 |
| Globus Medical | 2 | $190 |
| Biom'up France SAS | 2 | $158 |
| Medacta USA, Inc. | 1 | $144 |
| Encore Medical, LP | 1 | $137 |
| BREG, Inc | 1 | $137 |
| Arthrosurface Incorporated | 2 | $130 |
| Osteocentric Technologies, Inc. | 1 | $94 |
| Avanos Medical | 1 | $93 |
| Vericel Corporation | 1 | $93 |
| Orthofix Medical, Inc. | 1 | $84 |
| Pacira Therapeutics, Inc. | 4 | $57 |
| Baxter Healthcare | 2 | $44 |
| Linvatec Corporation | 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.
- TACTOSET$541
- REUNION$316
- Integrity$288
- Irrisept$246
- EQUINOXE$190
- BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION$174
- Integrity implant$153
- HemoBlast Bellows$147
- Shoulder System$144
- DJO Surgical 3DKnee System$137
- Breg VPULSE, PlasmaFlow, PolarCareWave$137
- ActivBraid$134
- SHOULDER IMPLANTS SPEEDBRIDGE COMPOSITE ANCHORS$130
- TRIATHLON$126
- Twist knotless DEX$125
- ARTHROPLASTY IMPLANTS REVERS TOTAL SHOULDER REVERS$120
- Q-FIX$119
- Regeneten$119
- ULTRABUTTON$119
- NOVOSTITCH$119
How this compares
$16,243 in reported general payments places this provider in the 80th percentile of 158 sports medicine providers in South Carolina.
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 |
|---|---|---|
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 139 | $1,243 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 24 | $159 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 16 | $85 |
| Tramadol Hcl | 36 | $80 |
| Amoxicillin | 18 | $20 |
Paid to pharmacies, not to this prescriber.
Other sports medicine in Greer
- Silas HolmesColumbia$2.2M
- Stephan PillGreenville$688K
- Steven MartinSeneca$356K
- Stefan TolanGreenville$280K
- Michael KissenberthGreenville$172K
- Guillaume DumontWest Columbia$146K
- Douglas WylandSpartanburg$124K
- Jeffrey GuyColumbia$120K
- Harris SloneCharleston$72K
- Donovan JohnsonConway$56K
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.