Charles Mullen, MD
Critical Care Medicine · Greenville, SCNPI 1447358478
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.1% of the total across 273 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 42 manufacturers, the largest accounting for just 10.1% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $1,599 and has fallen 69.7% since, to $485 in 2025.
Across 273 payments — averaging $19.08 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GSK$529
- AstraZeneca$516
- Electromed, Inc.$490
- Boehringer Ingelheim$459
- Insmed, Inc.$303
- Philips North America LLC$296
- plus $3K from 36 others
What the payments were for
- Food & beverage$5,10898%
- Education$1012%
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.
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.
How this compares
$5,209 in reported general payments places this provider in the 75th percentile of 93 critical care medicine providers in South Carolina.
See all critical care 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 |
|---|---|---|
| OfevNintedanib Esylate | 40 | $517,309 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 382 | $292,571 |
| Breo ElliptaFluticasone/Vilanterol | 106 | $50,195 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 53 | $49,467 |
| Stiolto RespimatTiotropium Br/Olodaterol Hcl | 27 | $19,815 |
| Ambrisentan | 12 | $14,925 |
| Spiriva RespimatTiotropium Bromide | 18 | $13,235 |
| SymbicortBudesonide/Formoterol Fumarate | 32 | $10,338 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 274 | $8,961 |
| Advair HfaFluticasone Propion/Salmeterol | 14 | $7,870 |
| Fluticasone-SalmeterolFluticasone Propion/Salmeterol | 61 | $7,705 |
| Spiriva HandihalerTiotropium Bromide | 11 | $6,290 |
| Wixela InhubFluticasone Propion/Salmeterol | 31 | $3,469 |
| Ventolin HfaAlbuterol Sulfate | 20 | $2,354 |
| Ipratropium Bromide | 17 | $916 |
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 |
|---|---|---|
| Boehringer IngelheimOfev, Stiolto Respimat, Spiriva Respimat | $459 | $550,36085 claims |
| GSKTrelegy Ellipta, Breo Ellipta | $529 | $342,767488 claims |
| AstraZenecaBreztri Aerosphere, Symbicort | $516 | $59,80685 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 75th percentile of 93 critical care medicine providers in South Carolina.
Other critical care medicine in Greenville
- Nasir AwanGreenville$54K
- Ahmad BootaGreenville$6K
- Melissa PalmerGreenville$844
- Jacquelyn BuhmeyerGreenville$773
- Absar MirzaGreenville$528
- John SharpGreenville$507
- Marie PolyniceGreenville$286
- Rhett DodgeGreenville$186
- Joeresty AbelidaGreenville$175
- Wayne HollingerGreenville$172
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.