Grant Chen, MD
Pain Medicine · Houston, TXNPI 1548555469
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $104,938 of the $174,595 with a category attached, or 60.1%. SPR Therapeutics, Inc accounts for 89.9% of it on its own, with 23 other manufacturers making up the rest. 2025 is the largest year on record at $61,730, more than ten times the $216 reported in 2019. Among pain medicine clinicians in TX with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 286 payments — averaging $610.47 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- SPR Therapeutics, Inc$157K
- Stratus Medical, LLC$6K
- Medtronic$3K
- Si-bone, Inc.$2K
- Stryker$1K
- Abbott$837
- plus $3K from 18 others
What the payments were for
- Consulting fees$104,93860%
- Speaking & faculty fees$4,7503%
- Grants$980%
- Travel & lodging$50,07129%
- Food & beverage$14,5758%
- Education$1640%
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 |
|---|---|---|
| SPR Therapeutics, Inc | 168 | $156,995 |
| Stratus Medical, LLC | 18 | $6,460 |
| Medtronic(2 entities) | 19 | $3,450 |
| Si-bone, Inc. | 18 | $2,481 |
| Stryker | 4 | $1,104 |
| Abbott | 9 | $837 |
| Biotronik NRO, Inc. | 5 | $591 |
| Rivanna Medical, Inc | 1 | $350 |
| AbbVie(2 entities) | 9 | $305 |
| Bioventus LLC | 3 | $247 |
| Spinal Simplicity, LLC | 3 | $240 |
| Nevro Corp. | 2 | $240 |
| Averitas Pharma Inc. | 5 | $218 |
| Pacira Pharmaceuticals Incorporated | 4 | $202 |
| Nalu Medical, Inc. | 5 | $182 |
| Flowonix Medical Incorporated | 1 | $143 |
| MML US, Inc. | 1 | $130 |
| Boston Scientific | 3 | $117 |
| GRT US Holding, Inc. | 1 | $100 |
| Saluda Medical Americas, Inc. | 1 | $90 |
| Painteq LLC | 3 | $52 |
| Vertex | 1 | $42 |
| Edwards Lifesciences | 1 | $16 |
| Epimed International, Inc | 1 | $5 |
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.
- SPRINT PNS System$153,949
- Nimbus$6,196
- SYNCHROMED$1,646
- IFUSE IMPLANT SYSTEM$1,585
- SPINEJACK$856
- PROCLAIM$628
- Prospera$556
- SYNCHROMEDII$550
- INTELLIS ADAPTIVESTIM$393
- Accuro$350
- OSTEOCOOL RF ABLATION SYSTEM$282
- INTELLIS$271
- YUKON OCT SPINAL SYSTEM$175
- Vyrsa V1$146
- Prometra II$143
- Iovera$136
- ReActiv8$130
- Nalu Neurostimulation System$129
- HA MINUTEMAN G3-R$126
- Qutenza$122
How this compares
$174,595 in reported general payments places this provider in the 95th percentile of 583 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 |
|---|---|---|
| Fentanyl | 20 | $2,030 |
| Gabapentin | 107 | $1,793 |
| Pregabalin | 39 | $785 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 42 | $734 |
| Duloxetine Hcl | 27 | $494 |
| Tizanidine Hcl | 22 | $257 |
| Methocarbamol | 16 | $145 |
| Tramadol Hcl | 29 | $135 |
| Meloxicam | 45 | $118 |
| Methylprednisolone | 17 | $102 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Houston
- Gunjan PatelHouston$166K
- Jaideep MehtaHouston$134K
- David LeimanHouston$131K
- Daniel PakHouston$117K
- Mitchell EngleHouston$72K
- Mayur KanjiaHouston$46K
- Baominh VinhHouston$44K
- Matthew ChungHouston$26K
- Thuan DaoHouston$23K
- Melissa MurphyGrapevine$653K
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.