Sassan Hassassian, MD
Interventional Pain Medicine · Manassas, VANPI 1093719536
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (50.2%), consulting fees and speaking fees — rather than concentrated in one kind of arrangement. Abbott accounts for 68.6% of it on its own, with 41 other manufacturers making up the rest. Reporting peaked in 2019 at $12,054 and has fallen 91.8% since, to $994 in 2025. Among interventional pain medicine clinicians in VA 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 457 payments — averaging $51.78 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$16K
- Medtronic$2K
- Collegium Pharmaceutical, Inc.$1K
- Scilex Pharmaceuticals Inc.$547
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$483
- Vertos Medical, Inc.$323
- plus $3K from 36 others
Across 1 payment — averaging $1025.00 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.
- Medtronic$1K
What the payments were for
- Consulting fees$6,34027%
- Speaking & faculty fees$3,90316%
- Travel & lodging$1,5427%
- Food & beverage$11,87850%
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.
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.
- Proclaim Family of SCS IPGs$5,537
- Neuromodulation Dspsbls and Accs$3,646
- Prodigy Family of SCS IPGs$2,378
- INTELLIS ADAPTIVESTIM$830
- IonicRF Generator$700
- PROCLAIM$570
- Proclaim XR IPG$350
- mild Device Kit$323
- Infinity DBS Pulse Generators$176
- Axium INS DRG IPG$169
- Axium$151
- Prospera$143
- iFuse Implant$142
- Proclaim IPG$135
- Qutenza$130
- XEOMIN$124
- STEALTHSTATION S8 PLATFORM$119
- Axium Sheath Braided DRG$118
- Octrode SCS Leads$102
How this compares
$23,663 in reported general payments places this provider in the 90th percentile of 52 interventional pain medicine providers in Virginia.
See all interventional pain medicine providers in Virginia →
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 |
|---|---|---|
| Buprenorphine | 22 | $4,414 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 81 | $1,376 |
| Gabapentin | 190 | $978 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 70 | $766 |
| Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen | 68 | $596 |
| Celecoxib | 27 | $453 |
| Methocarbamol | 73 | $441 |
| Morphine Sulfate ErMorphine Sulfate | 14 | $375 |
| Pregabalin | 38 | $320 |
| Tramadol Hcl | 60 | $238 |
| Duloxetine Hcl | 19 | $190 |
| Oxycodone Hcl | 13 | $78 |
| Tizanidine Hcl | 17 | $35 |
Paid to pharmacies, not to this prescriber.
Other interventional pain medicine in Manassas
- Usman ZafarManassas$4K
- Deeni BassamManassas$4K
- Ketan PatelHaymarket$133K
- Che TorryNewport News$48K
- Niteesh BhararaReston$25K
- Raj SurejaNewport News$23K
- Benjamin SeemanRichmond$21K
- Alok GopalWinchester$16K
- Jacob LeeWinchester$14K
- Yaoming GuRichmond$13K
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.