William Walker, MD
Pulmonary Disease · Anderson, SCNPI 1700889904
Payments from drug & device makers
Across 202 payments — averaging $16.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$520
- Boehringer Ingelheim$419
- AstraZeneca$391
- Electromed, Inc.$250
- Insmed, Inc.$202
- Merck$169
- plus $1K from 30 others
What the payments were for
- Food & beverage$3,23798%
- Education$502%
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 |
|---|---|---|
| GSK | 37 | $520 |
| Boehringer Ingelheim | 25 | $419 |
| AstraZeneca | 23 | $391 |
| Electromed, Inc. | 24 | $250 |
| Insmed, Inc. | 14 | $202 |
| Merck | 10 | $169 |
| United Therapeutics Corporation | 6 | $135 |
| Pharming Healthcare, Inc. | 4 | $92 |
| Takeda Pharmaceuticals U.S.A., Inc. | 4 | $90 |
| Actelion Pharmaceuticals US, Inc. | 4 | $85 |
| Advanced Respiratory, Inc | 4 | $73 |
| Grifols USA, LLC | 5 | $70 |
| Regeneron Healthcare Solutions, Inc. | 2 | $66 |
| Circassia Inc. | 4 | $66 |
| Philips North America LLC | 4 | $66 |
| Amgen | 3 | $63 |
| Genentech USA, Inc. | 5 | $63 |
| Inari Medical, Inc. | 1 | $49 |
| Pfizer | 2 | $42 |
| Sanofi | 2 | $37 |
| Mallinckrodt Hospital Products Inc. | 2 | $36 |
| Novartis | 2 | $32 |
| Mylan Specialty L.p. | 2 | $31 |
| Neurocrine Biosciences, Inc. | 1 | $28 |
| Inspire Medical Systems, Inc. | 1 | $24 |
| Biofire Diagnostics, LLC | 1 | $24 |
| Novo Nordisk | 1 | $23 |
| Covis Pharma GmbH | 1 | $20 |
| Biogen | 1 | $18 |
| Shire North American Group Inc | 1 | $17 |
| Bayer | 1 | $17 |
| Johnson & Johnson | 1 | $15 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $14 |
| Paratek Pharmaceuticals, Inc. | 1 | $13 |
| Harmony Biosciences LLC | 1 | $13 |
| Mallinckrodt Enterprises LLC | 1 | $13 |
How this compares
$3,287 in reported general payments places this provider in the 50th percentile of 192 pulmonary disease 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 |
|---|---|---|
| ArikayceAmikacin Liposomal/Neb.Accessr | 16 | $242,719 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 181 | $134,660 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 67 | $52,905 |
| Breo ElliptaFluticasone/Vilanterol | 47 | $29,916 |
| Anoro ElliptaUmeclidinium Brm/Vilanterol Tr | 40 | $26,652 |
| Combivent RespimatIpratropium/Albuterol Sulfate | 21 | $15,608 |
| SymbicortBudesonide/Formoterol Fumarate | 47 | $15,089 |
| EliquisApixaban | 20 | $12,581 |
| DuleraMometasone/Formoterol | 18 | $6,361 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 149 | $5,146 |
| Wixela InhubFluticasone Propion/Salmeterol | 15 | $968 |
| Ventolin HfaAlbuterol Sulfate | 16 | $883 |
| Azelastine Hcl | 12 | $838 |
| Azithromycin | 56 | $680 |
| Rifampin | 12 | $646 |
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 |
|---|---|---|
| Insmed, Inc.Arikayce | $202 | $242,71916 claims |
| GSKTrelegy Ellipta, Breo Ellipta, Anoro Ellipta | $520 | $191,228268 claims |
| AstraZenecaBreztri Aerosphere, Symbicort | $391 | $67,994114 claims |
| Boehringer IngelheimCombivent Respimat | $419 | $15,60821 claims |
| PfizerEliquis | $42 | $12,58120 claims |
| MerckDulera | $169 | $6,36118 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 50th percentile of 192 pulmonary disease providers in South Carolina.
Other pulmonary disease in Anderson
- Charles ThompsonAnderson$7.7M
- Abhijit RavalAnderson$3M
- Kenneth WaltersAnderson$81K
- Syed MalikAnderson$10K
- Charles FogartySpartanburg$18.7M
- Gregory FeldmanColumbia$15.1M
- Farhan SiddiquiSpartanburg$8.6M
- Joseph BosciaSpartanburg$7.9M
- David ErbSpartanburg$7.5M
- Richard BoganColumbia$4.8M
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.