Adarsh Thaker, MD
Gastroenterology · Los Angeles, CANPI 1316200777
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $153,235 of the $241,048 with a category attached, or 63.6%. Boston Scientific accounts for 80.4% of it on its own, with 25 other manufacturers making up the rest. 2025 is the largest year on record at $65,425, more than ten times the $3,381 reported in 2019. Among gastroenterology clinicians in CA 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 547 payments — averaging $440.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$194K
- Apollo Endosurgery US Inc$25K
- US Endoscopy$5K
- Steris Corporation$3K
- Olympus Medical Systems Corporation$3K
- Cook Incorporated$3K
- plus $8K from 20 others
What the payments were for
- Consulting fees$46,86319%
- Speaking & faculty fees$153,23564%
- Travel & lodging$18,1438%
- Food & beverage$22,8079%
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 |
|---|---|---|
| Boston Scientific | 393 | $193,744 |
| Apollo Endosurgery US Inc | 45 | $24,797 |
| US Endoscopy | 3 | $5,250 |
| Steris Corporation | 11 | $3,329 |
| Olympus Medical Systems Corporation | 1 | $3,206 |
| Cook Incorporated | 1 | $3,000 |
| Olympus Corporation Of The Americas | 17 | $1,684 |
| Endogastric Solutions, Inc | 18 | $1,109 |
| Cook Medical LLC | 14 | $1,076 |
| Fujifilm Healthcare Americas Corporation | 11 | $988 |
| Conmed Corporation | 8 | $610 |
| Olympus America Inc. | 7 | $480 |
| BD | 1 | $407 |
| ERBE USA Inc | 2 | $388 |
| Covidien LP | 3 | $242 |
| Intuitive Surgical | 1 | $167 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $135 |
| Ipsen Biopharmaceuticals, Inc | 1 | $134 |
| Micro-tech Endoscopy USA, Inc. | 1 | $109 |
| Johnson & Johnson | 2 | $47 |
| Pinnacle Biologics, Inc | 1 | $43 |
| Nestle Healthcare Nutrition Inc. | 1 | $25 |
| Lucid Diagnostics Inc. | 1 | $22 |
| QOL Medical, LLC | 1 | $20 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $19 |
| Ferring Pharmaceuticals Inc. | 1 | $18 |
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.
- EXALT Model D$78,981
- OverStitch Endoscopic Suturing System$41,341
- GENERAL - THERAPIES$21,628
- X-Tack Endoscopic HeliX Tacking System$21,272
- ORBERA Intragastric Balloon System$21,110
- OverStitch Endoscopic Suturing System Sx$9,682
- Resolution 360 Clip$9,651
- ACQUIRE$9,603
- APOLLO Revise System$9,258
- APOLLO ESG System$8,250
- EXALT$7,895
- SPYGLASS$3,759
- EVIS EXERA II SMALL INTESTINAL VIDEOSCOPE$3,206
- Hemospray$3,204
- EXALT BX 2$3,082
- Single Use Electrosurgical Knife KD-655$1,421
- ORISE$1,349
- DISPOSABLE DISTAL ATTACHMENT$1,288
- GENERAL BIOPSY$957
- AXIOS$854
How this compares
$241,048 in reported general payments places this provider in the 95th percentile of 1,885 gastroenterology providers in California.
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 |
|---|---|---|
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 16 | $1,051 |
| Pantoprazole Sodium | 25 | $349 |
| Omeprazole | 28 | $298 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Los Angeles
- Bennett RothLos Angeles$2.8M
- Sammy SaabLos Angeles$1.9M
- Sadeea AbbasiLos Angeles$556K
- Gil MelmedLos Angeles$467K
- Venkataraman MuthusamyLos Angeles$297K
- Caroline HwangLos Angeles$279K
- Andres YarurLos Angeles$218K
- Joseph PisegnaLos Angeles$210K
- Steven-Huy HanLos Angeles$194K
- Gina ChoiLos Angeles$160K
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.