Gregory Ackroyd, MD
Sleep Medicine · Santa Rosa, CANPI 1538192984
Payments from drug & device makers
Across 109 payments — averaging $29.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Philips North America LLC$1K
- Jazz Pharmaceuticals Inc.$543
- GSK$390
- Itamar Medical Inc$295
- Avadel CNS Pharmaceuticals, LLC$150
- Harmony Biosciences LLC$143
- plus $621 from 13 others
What the payments were for
- Consulting fees$281%
- Food & beverage$2,85489%
- Education$31010%
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 |
|---|---|---|
| Philips North America LLC | 28 | $1,049 |
| Jazz Pharmaceuticals Inc. | 18 | $543 |
| GSK | 25 | $390 |
| Itamar Medical Inc | 4 | $295 |
| Avadel CNS Pharmaceuticals, LLC | 5 | $150 |
| Harmony Biosciences LLC | 3 | $143 |
| Regeneron Healthcare Solutions, Inc. | 4 | $132 |
| Boehringer Ingelheim | 3 | $92 |
| Sanofi | 2 | $62 |
| Baxter Healthcare | 3 | $62 |
| AstraZeneca | 2 | $50 |
| Resmed Corp | 3 | $47 |
| Axsome Therapeutics, Inc. | 2 | $37 |
| Fisher & Paykel Healthcare Inc | 2 | $35 |
| Inspire Medical Systems, Inc. | 1 | $32 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $31 |
| Lilly USA, LLC | 1 | $19 |
| ZOLL Respicardia, Inc. | 1 | $17 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $4 |
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.
- Dreamstat Bipap Auto$120
- WatchPat$117
- (DI2) Nasal Masks - Over the Head$101
How this compares
$3,192 in reported general payments places this provider in the 65th 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 |
|---|---|---|
| Armodafinil | 33 | $2,078 |
| Gabapentin | 62 | $795 |
| Fluticasone Propionate | 11 | $294 |
| Zolpidem Tartrate | 21 | $243 |
| Methadone Hcl | 12 | $147 |
| Trazodone Hcl | 16 | $143 |
| Amitriptyline Hcl | 13 | $94 |
| Eszopiclone | 22 | $80 |
Paid to pharmacies, not to this prescriber.
Other sleep medicine in Santa Rosa
- Vu TranSanta Rosa$27K
- Emmanuel MignotStanford$4.7M
- Daniel NormanLos Angeles$4.2M
- Atul MalhotraSan Diego$1.4M
- Lisa ShivesSan Diego$1.4M
- Haramandeep SinghSan Ramon$1.3M
- Logan SchneiderStanford$506K
- Tony MasriLos Gatos$327K
- Clete KushidaStanford$231K
- Sam KashaniSanta Monica$221K
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.