Yoon Hee Chang, MD
Sleep Medicine · Kirkland, WANPI 1023294311
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $3,071 of the $4,631 with a category attached, or 66.3%. 10 manufacturers reported payments, led by Inspire Medical Systems, Inc. at 55.4% of the total.
Across 50 payments — averaging $92.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Inspire Medical Systems, Inc.$3K
- Jazz Pharmaceuticals Inc.$757
- Harmony Biosciences LLC$592
- ZOLL Respicardia, Inc.$269
- Axsome Therapeutics, Inc.$201
- Resmed Corp$95
- plus $154 from 4 others
What the payments were for
- Travel & lodging$1,18926%
- Food & beverage$3,07166%
- Education$3718%
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 |
|---|---|---|
| Inspire Medical Systems, Inc. | 23 | $2,564 |
| Jazz Pharmaceuticals Inc. | 8 | $757 |
| Harmony Biosciences LLC | 9 | $592 |
| ZOLL Respicardia, Inc. | 2 | $269 |
| Axsome Therapeutics, Inc. | 3 | $201 |
| Resmed Corp | 1 | $95 |
| Novo Nordisk | 1 | $58 |
| 3b Medical, Inc. | 1 | $49 |
| Noctrix Health, Inc. | 1 | $25 |
| Lilly USA, LLC | 1 | $22 |
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.
- Inspire$2,125
- XYWAV$382
- Wakix$296
- remede System$269
- SUNOSI$250
How this compares
$4,631 in reported general payments places this provider in the 80th percentile of 67 sleep medicine providers in Washington.
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 |
|---|---|---|
| Methylphenidate Hcl | 23 | $700 |
| Pregabalin | 33 | $467 |
| Mirtazapine | 15 | $373 |
| Pramipexole DihydrochloridePramipexole Di-Hcl | 33 | $328 |
| Prazosin Hcl | 11 | $302 |
| Gabapentin | 16 | $148 |
| Trazodone Hcl | 33 | $147 |
| Zolpidem Tartrate | 22 | $120 |
| Zaleplon | 12 | $65 |
| Methadone Hcl | 12 | $39 |
Paid to pharmacies, not to this prescriber.
Other sleep medicine in Kirkland
- Zeyad MorcosKirkland$6K
- Chris ChouKirkland$1K
- Henry SuKirkland$260
- Joel YoungerKirkland$41
- Muhammad UsamaAuburn$73K
- Vrushali GersappeEverett$56K
- Gandis MazeikaEdmonds$30K
- Meredith BroderickBellevue$8K
- Akhil RaghuramVancouver$7K
- Flavia ConsensSeattle$5K
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.