Mark Buchfuhrer, MD
Sleep Medicine · Downey, CANPI 1639130693
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (40.6%), consulting fees and food and beverage — rather than concentrated in one kind of arrangement. 43 manufacturers reported payments, led by Noctrix Health, Inc. at 28.8% of the total. Among sleep medicine clinicians in CA 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 839 payments — averaging $84.02 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Noctrix Health, Inc.$20K
- Harmony Biosciences LLC$20K
- UCB, Inc.$10K
- Arbor Pharmaceuticals, Inc.$4K
- GSK$3K
- Boehringer Ingelheim$2K
- plus $11K from 37 others
Across 7 payments — averaging $10,642 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.
- Noctrix Health, Inc.$74K
What the payments were for
- Consulting fees$22,94633%
- Speaking & faculty fees$28,64541%
- Travel & lodging$2,7854%
- Food & beverage$15,70122%
- Education$4171%
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
$70,495 in reported general payments places this provider in the 95th percentile of 200 sleep medicine providers in California.
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 |
|---|---|---|
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 811 | $585,453 |
| OfevNintedanib Esylate | 33 | $441,404 |
| BelbucaBuprenorphine Hcl | 110 | $104,988 |
| NeuproRotigotine | 63 | $85,696 |
| Breo ElliptaFluticasone/Vilanterol | 171 | $84,920 |
| Pirfenidone | 12 | $83,401 |
| NucalaMepolizumab | 18 | $66,997 |
| HorizantGabapentin Enacarbil | 49 | $59,781 |
| AtivanLorazepam | 12 | $45,735 |
| JanuviaSitagliptin Phosphate | 50 | $45,536 |
| Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl | 242 | $26,366 |
| XareltoRivaroxaban | 25 | $21,359 |
| Breztri AerosphereBudesonide/Glycopyr/Formoterol | 36 | $19,676 |
| EliquisApixaban | 18 | $18,259 |
| OxycontinOxycodone Hcl | 42 | $14,131 |
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 |
|---|---|---|
| GSKTrelegy Ellipta, Breo Ellipta, Nucala, Anoro Ellipta | $2,685 | $746,5551,012 claims |
| Boehringer IngelheimOfev | $2,435 | $441,40433 claims |
| Collegium Pharmaceutical, Inc.Belbuca | $662 | $104,988110 claims |
| UCB, Inc.Neupro | $10,098 | $85,69663 claims |
| Arbor Pharmaceuticals, Inc.Horizant | $4,299 | $59,78149 claims |
| MerckJanuvia, Belsomra | $159 | $48,43562 claims |
| Johnson & JohnsonXarelto | $617 | $21,35925 claims |
| AstraZenecaBreztri Aerosphere | $1,558 | $19,67636 claims |
| PfizerEliquis | $28 | $18,25918 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 95th percentile of 200 sleep medicine providers in California.
Other sleep medicine in Downey
- Lisa ShivesSan Diego$1.4M
- Haramandeep SinghSan Ramon$1.1M
- Atul MalhotraSan Diego$771K
- Logan SchneiderStanford$506K
- Tony MasriLos Gatos$327K
- Sam KashaniSanta Monica$221K
- Emmanuel MignotStanford$135K
- Jerome HesterPalo Alto$74K
- Clete KushidaStanford$58K
- Ronald PopperThousand Oaks$42K
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.