Brian Tsang, MD
Pain Medicine · Biloxi, MSNPI 1194819045
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 36 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 19 manufacturers, the largest accounting for just 19.8% — the pattern of someone who eats at a lot of different presentations. That places this record below the midpoint for pain medicine clinicians in MS, where the typical reported total is $3,332.
Across 36 payments — averaging $26.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$188
- Forte Bio-pharma LLC$121
- Mindray DS USA, Inc.$80
- Indivior Inc.$73
- Orexo US, Inc.$69
- Axonics, Inc.$57
- plus $363 from 13 others
What the payments were for
- Food & beverage$950100%
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 |
|---|---|---|
| AbbVie | 2 | $188 |
| Forte Bio-pharma LLC | 5 | $121 |
| Mindray DS USA, Inc. | 1 | $80 |
| Indivior Inc. | 3 | $73 |
| Orexo US, Inc. | 5 | $69 |
| Axonics, Inc. | 1 | $57 |
| Scilex Pharmaceuticals Inc. | 3 | $53 |
| Valinor Pharma, LLC | 3 | $49 |
| Amgen | 3 | $44 |
| Axsome Therapeutics, Inc. | 1 | $32 |
| Abbott | 1 | $30 |
| Almatica Pharma LLC | 1 | $27 |
| Johnson & Johnson | 1 | $25 |
| Brainsway USA Inc | 1 | $23 |
| Alkermes, Inc. | 1 | $23 |
| Daiichi Sankyo Inc. | 1 | $16 |
| Assertio Therapeutics, Inc. | 1 | $16 |
| Collegium Pharmaceutical, Inc. | 1 | $13 |
| Kaleo, Inc. | 1 | $11 |
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.
- VRAYLAR$106
How this compares
$950 in reported general payments places this provider in the 25th percentile of 48 pain medicine providers in Mississippi.
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-NaloxoneBuprenorphine Hcl/Naloxone Hcl | 25 | $3,399 |
| Diclofenac Sodium | 45 | $1,460 |
| Gabapentin | 160 | $1,094 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 51 | $734 |
| Celecoxib | 105 | $731 |
| Tizanidine Hcl | 102 | $661 |
| Hydromorphone Hcl | 26 | $528 |
| Pregabalin | 56 | $515 |
| Cyclobenzaprine Hcl | 47 | $351 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 35 | $282 |
| Methocarbamol | 32 | $238 |
| Duloxetine Hcl | 13 | $188 |
| Oxycodone Hcl | 19 | $187 |
| Promethazine Hcl | 11 | $141 |
| Baclofen | 23 | $120 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Biloxi
- Rayhan TariqLaurel$64K
- Alan TorreyVicksburg$30K
- Landon BurnsFlowood$22K
- Joe CookByram$21K
- Bretley SitzmanHattiesburg$18K
- Michael ScarbroughCorinth$15K
- Casey OrzechowiczJackson$15K
- Anand PremJackson$13K
- Rex WilliamsStarkville$12K
- Jeremy SmithermanFlowood$11K
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.