Alexander Chen, MD
Interventional Pain Medicine · San Antonio, TXNPI 1750543476
Payments from drug & device makers
Across 317 payments — averaging $19.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$2K
- Boston Scientific$1K
- Medtronic$868
- Teva Pharmaceuticals USA, Inc.$515
- Si-bone, Inc.$310
- AbbVie$206
- plus $1K from 15 others
What the payments were for
- Travel & lodging$84914%
- Food & beverage$5,27986%
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 |
|---|---|---|
| Abbott | 193 | $1,776 |
| Boston Scientific | 9 | $1,230 |
| Medtronic | 20 | $868 |
| Teva Pharmaceuticals USA, Inc. | 24 | $515 |
| Si-bone, Inc. | 6 | $310 |
| AbbVie(2 entities) | 16 | $206 |
| Nevro Corp. | 3 | $194 |
| Biohaven Pharmaceuticals, Inc. | 7 | $177 |
| Amgen | 10 | $155 |
| Novartis | 5 | $102 |
| Globus Medical | 1 | $101 |
| Relievant Medsystems, Inc. | 5 | $91 |
| La Jolla Pharmaceutical Company | 1 | $85 |
| Scilex Pharmaceuticals Inc. | 4 | $69 |
| GRT US Holding, Inc. | 3 | $62 |
| IBSA Pharma Inc. | 4 | $58 |
| Biohaven Pharmaceutical Holding Company Ltd. | 2 | $51 |
| Vertex | 1 | $30 |
| Almatica Pharma LLC | 1 | $19 |
| Lilly USA, LLC | 1 | $16 |
| Assertio Therapeutics, Inc. | 1 | $13 |
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.
- Intracept$584
- iFuse Implant$235
- PROCLAIM$154
- Proclaim Family of SCS IPGs$148
- Omnia$148
- MAZOR X SYSTEM$130
- AJOVY$125
- STEALTHSTATION S8 PLATFORM$121
- Senza$101
How this compares
$6,128 in reported general payments places this provider in the 45th percentile of 287 interventional pain medicine providers in Texas.
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 |
|---|---|---|
| Pregabalin | 191 | $3,349 |
| Gabapentin | 166 | $1,940 |
| Lidocaine | 16 | $1,289 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 54 | $683 |
| Methocarbamol | 39 | $547 |
| Baclofen | 51 | $457 |
| Duloxetine Hcl | 25 | $448 |
| Morphine Sulfate ErMorphine Sulfate | 12 | $334 |
| Oxycodone Hcl | 21 | $314 |
| Tizanidine Hcl | 33 | $170 |
| Lorazepam | 121 | $94 |
| Trazodone Hcl | 12 | $65 |
| Tramadol Hcl | 22 | $46 |
Paid to pharmacies, not to this prescriber.
Other interventional pain medicine in San Antonio
- Sarah TrampotaSan Antonio$37K
- William TisdallSan Antonio$30K
- Gabor RaczLubbock$3M
- Pankaj MehtaKilleen$2.2M
- Genaro GutierrezAustin$1.3M
- Chad StephensSouthlake$1.1M
- Ioannis SkaribasHouston$979K
- Duane GriffithTyler$730K
- Brannon FrankAustin$698K
- Robert WillsRound Rock$692K
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.