David Hao, MD
Pain Medicine · Boston, MANPI 1801323357
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (59.1%), travel and lodging and education — rather than concentrated in one kind of arrangement. 12 manufacturers reported payments, led by Boston Scientific at 39.1% of the total. Reporting peaked in 2022 at $8,469 and has fallen 92.0% since, to $675 in 2025. Among pain medicine clinicians in MA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 149 payments — averaging $108.76 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$6K
- Abbott$5K
- MML US, Inc.$3K
- Medtronic$1K
- SPR Therapeutics, Inc$302
- Curonix LLC$142
- plus $529 from 6 others
What the payments were for
- Travel & lodging$6,59141%
- Food & beverage$9,58059%
- Education$360%
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 |
|---|---|---|
| Boston Scientific | 64 | $6,336 |
| Abbott | 37 | $4,701 |
| MML US, Inc. | 17 | $2,839 |
| Medtronic | 21 | $1,357 |
| SPR Therapeutics, Inc | 2 | $302 |
| Curonix LLC | 1 | $142 |
| Vertos Medical, Inc. | 1 | $128 |
| Vertex | 1 | $121 |
| Si-bone, Inc. | 2 | $112 |
| Siemens Medical Solutions USA, Inc. | 1 | $93 |
| Nevro Corp. | 1 | $39 |
| Biotronik NRO, Inc. | 1 | $36 |
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
$16,206 in reported general payments places this provider in the 90th percentile of 137 pain medicine providers in Massachusetts.
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 |
|---|---|---|
| Fentanyl | 15 | $3,137 |
| Oxycodone Hcl | 55 | $895 |
| Pregabalin | 19 | $800 |
| Gabapentin | 34 | $517 |
| Methadone Hcl | 22 | $480 |
| Tizanidine Hcl | 13 | $286 |
| Hydromorphone Hcl | 12 | $158 |
| Tramadol Hcl | 15 | $34 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Boston
- Thomas SimopoulosBoston$181K
- Arti OriBoston$62K
- Christine SangBoston$56K
- Eduard VaynbergBoston$32K
- Erika YihBoston$8K
- Samuel AngBoston$7K
- Kevin VuBoston$6K
- Brenda LeeBoston$6K
- Steven MachBoston$5K
- Rupeng LiBoston$4K
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.