Long-Chau van, DO
Pain Medicine · Springfield, MANPI 1699160259
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (51.1%), food and beverage and education — rather than concentrated in one kind of arrangement. 6 manufacturers reported payments, led by Medtronic at 48.1% of the total. Reporting peaked in 2019 at $668 and has fallen 84.1% since, to $106 in 2024. That places this record below the midpoint for pain medicine clinicians in MA, where the typical reported total is $2,094.
Across 15 payments — averaging $110.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$796
- Pacira Pharmaceuticals Incorporated$566
- SPR Therapeutics, Inc$142
- Vertos Medical, Inc.$106
- CSL Behring$26
- Merck$20
What the payments were for
- Travel & lodging$84651%
- Food & beverage$65940%
- Education$1529%
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 |
|---|---|---|
| Medtronic(2 entities) | 8 | $796 |
| Pacira Pharmaceuticals Incorporated | 3 | $566 |
| SPR Therapeutics, Inc | 1 | $142 |
| Vertos Medical, Inc. | 1 | $106 |
| CSL Behring | 1 | $26 |
| Merck | 1 | $20 |
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.
- Iovera$513
- INTELLIS$300
- SPRINT PNS System$142
- RESTORE$132
- INTELLIS ADAPTIVESTIM$128
- Zilretta$124
- mild Device Kit$106
How this compares
$1,656 in reported general payments places this provider in the 45th 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 |
|---|---|---|
| Oxycodone Hcl | 38 | $473 |
| Diazepam | 12 | $24 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Springfield
- Adam GoldenbergSpringfield$4K
- Hariharan SundramNewton$1.7M
- Thomas SimopoulosBoston$181K
- Ivan UritsWareham$70K
- Antje BarreveldNewton$64K
- Arti OriBoston$62K
- Christine SangBoston$56K
- Ali EbrahimiBurlington$41K
- Alexandra AdlerLowell$35K
- Eduard VaynbergBoston$32K
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.