Arun Rai, MD
Urology · Houston, TXNPI 1508278995
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $905,571 of the $920,349 with a category attached, or 98.4%. Histosonics, Inc. accounts for 96.4% of it on its own, with 12 other manufacturers making up the rest. 2025 is the largest year on record at $889,987, more than ten times the $50 reported in 2019. Among urology 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 67 payments — averaging $13,737 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Histosonics, Inc.$888K
- Activ Surgical, Inc.$21K
- Intuitive Surgical$6K
- Novo Nordisk$2K
- Stryker$1K
- Boston Scientific$864
- plus $1K from 7 others
Across 1 payment — averaging $86,492 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.
- Histosonics, Inc.$86K
What the payments were for
- Consulting fees$905,57198%
- Travel & lodging$7,3711%
- Food & beverage$3,4070%
- Education$4,0000%
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 |
|---|---|---|
| Histosonics, Inc. | 5 | $887,622 |
| Activ Surgical, Inc. | 13 | $21,449 |
| Intuitive Surgical | 13 | $5,759 |
| Novo Nordisk | 2 | $1,800 |
| Stryker | 7 | $1,404 |
| Boston Scientific | 7 | $864 |
| Calyxo, Inc. | 4 | $587 |
| Procept Biorobotics Corporation | 2 | $248 |
| Coloplast | 9 | $223 |
| Mediview XR, Inc. | 1 | $116 |
| Novo Nordisk Health Care AG | 1 | $114 |
| Medtronic | 2 | $90 |
| Galvanize Therapeutics, Inc | 1 | $74 |
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.
- ActivSight$21,314
- Da Vinci Surgical System$5,629
- CHROMOPHARE F300$1,100
- CVAC Aspiration System$587
- AquaBeam Robotic System$168
- GENERAL KIDNEY STONE DISEASE$150
How this compares
$920,349 in reported general payments places this provider in the 95th percentile of 878 urology 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 |
|---|---|---|
| Potassium Citrate ErPotassium Citrate | 165 | $18,429 |
| MyrbetriqMirabegron | 18 | $15,812 |
| Solifenacin Succinate | 88 | $6,514 |
| Tamsulosin Hcl | 294 | $4,765 |
| Finasteride | 141 | $1,789 |
| Estradiol | 18 | $960 |
| Alfuzosin Hcl ErAlfuzosin Hcl | 14 | $957 |
| Oxybutynin Chloride | 32 | $647 |
| Oxybutynin Chloride ErOxybutynin Chloride | 34 | $603 |
| Chlorthalidone | 19 | $291 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 32 | $190 |
| Allopurinol | 15 | $143 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 22 | $124 |
| Ciprofloxacin Hcl | 16 | $106 |
| Hydrochlorothiazide | 12 | $58 |
Paid to pharmacies, not to this prescriber.
Other urology in Houston
- Donald GriffithHouston$732K
- Jonathan Clavell HernandezHouston$500K
- Ashish KamatHouston$481K
- Mohit KheraHouston$428K
- Ricardo GonzalezHouston$314K
- Richard LinkHouston$261K
- Steven CanfieldHouston$256K
- Run WangHouston$195K
- Kathleen KobashiHouston$159K
- Steven MaislosHouston$158K
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.