Francis Luk, MD
Rheumatology · Winston Salem, NCNPI 1700198173
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 97.0% of the total across 252 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 21 manufacturers reported payments, led by AbbVie at 30.6% of the total. 2025 is the largest year on record at $1,320, more than ten times the $122 reported in 2019.
Across 252 payments — averaging $19.42 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$1K
- Amgen$1K
- Johnson & Johnson$467
- AstraZeneca$385
- Lilly USA, LLC$200
- UCB, Inc.$177
- plus $683 from 15 others
Across 45 payments — averaging $2484.83 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.
- AbbVie$98K
- Janssen Research & Development, LLC$14K
What the payments were for
- Food & beverage$4,75097%
- Education$1453%
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 |
|---|---|---|
| AbbVie | 91 | $1,498 |
| Amgen(2 entities) | 75 | $1,484 |
| Johnson & Johnson | 20 | $467 |
| AstraZeneca(2 entities) | 20 | $385 |
| Lilly USA, LLC | 7 | $200 |
| UCB, Inc. | 9 | $177 |
| Novartis | 6 | $150 |
| Pfizer | 4 | $87 |
| GSK | 3 | $65 |
| Radius Health, Inc. | 3 | $55 |
| ANI Pharmaceuticals, Inc. | 2 | $53 |
| Genentech USA, Inc. | 2 | $41 |
| Aurinia Pharma U.S., Inc. | 2 | $38 |
| Organon | 1 | $31 |
| Octapharma USA, Inc. | 1 | $29 |
| Kiniksa Pharmaceuticals International, PLC | 1 | $28 |
| Almatica Pharma LLC | 1 | $25 |
| Boehringer Ingelheim | 1 | $25 |
| Sandoz | 1 | $20 |
| Bristol Myers Squibb | 1 | $19 |
| Fresenius Kabi USA, LLC | 1 | $17 |
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.
- EVENITY$238
How this compares
$4,895 in reported general payments places this provider in the 55th percentile of 210 rheumatology providers in North 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 |
|---|---|---|
| Enbrel SureclickEtanercept | 79 | $619,965 |
| Humira(Cf) PenAdalimumab | 75 | $549,382 |
| RinvoqUpadacitinib | 46 | $301,322 |
| EnbrelEtanercept | 35 | $259,229 |
| Orencia ClickjectAbatacept | 27 | $140,837 |
| OtezlaApremilast | 17 | $79,624 |
| BenlystaBelimumab | 12 | $67,480 |
| ForteoTeriparatide | 12 | $48,390 |
| Teriparatide | 19 | $43,729 |
| Hydroxychloroquine Sulfate | 331 | $14,582 |
| MethotrexateMethotrexate Sodium | 357 | $10,133 |
| Leflunomide | 45 | $3,577 |
| Prednisone | 395 | $3,084 |
| Febuxostat | 13 | $1,305 |
| Allopurinol | 109 | $1,291 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AmgenEnbrel, Otezla | $1,484 | $338,85452 claims |
| AbbVieRinvoq | $1,498 | $301,32246 claims |
| GSKBenlysta | $65 | $67,48012 claims |
| Lilly USA, LLCForteo | $200 | $48,39012 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 55th percentile of 210 rheumatology providers in North Carolina.
Other rheumatology in Winston Salem
- Julio BravoWinston Salem$52K
- Nilamadhab MishraWinston Salem$31K
- Elliott SembleWinston Salem$9K
- Gordon LamCharlotte$2.7M
- Ralph SnydermanDurham$1.3M
- Wendy SimmonsWilmington$462K
- Andrew LasterCharlotte$421K
- Ana RossRaleigh$417K
- Gwenesta MeltonFayetteville$410K
- Joseph ShanahanDurham$407K
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.