Drew Schembre, MD
Gastroenterology · Walnut Creek, CANPI 1366557217
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $624,701 of the $659,365 with a category attached, or 94.7%. Wilson Cook Medical Incorporated accounts for 62.7% of it on its own, with 24 other manufacturers making up the rest. Reporting peaked in 2019 at $138,822 and has fallen 59.2% since, to $56,604 in 2025. 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 162 payments — averaging $4070.16 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Wilson Cook Medical Incorporated$414K
- Cook Incorporated$225K
- Neptune Medical Inc.$14K
- Boston Scientific$1K
- Micro-tech Endoscopy USA, Inc.$1K
- AbbVie$1K
- plus $3K from 19 others
What the payments were for
- Royalty or licence$624,70195%
- Consulting fees$15,7502%
- Speaking & faculty fees$6,8351%
- Travel & lodging$2,0360%
- Food & beverage$4,3431%
- Education$5,7001%
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 |
|---|---|---|
| Wilson Cook Medical Incorporated | 37 | $413,586 |
| Cook Incorporated | 8 | $225,288 |
| Neptune Medical Inc. | 2 | $14,400 |
| Boston Scientific | 23 | $1,282 |
| Micro-tech Endoscopy USA, Inc. | 5 | $1,133 |
| AbbVie | 32 | $1,105 |
| Cook Medical LLC | 13 | $898 |
| Shockwave Medical, Inc | 2 | $600 |
| Johnson & Johnson | 6 | $172 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 8 | $132 |
| Fujifilm Healthcare Americas Corporation | 1 | $116 |
| Takeda Pharmaceuticals U.S.A., Inc. | 5 | $113 |
| Endogastric Solutions, Inc | 1 | $98 |
| Vivus LLC | 4 | $84 |
| Pentax Of America, Inc. | 1 | $70 |
| Echosens North America, Inc. | 1 | $59 |
| Conmed Corporation | 2 | $40 |
| Merck | 2 | $32 |
| Medtronic | 1 | $31 |
| Pfizer | 2 | $30 |
| Mallinckrodt Hospital Products Inc. | 1 | $26 |
| Daiichi Sankyo Inc. | 1 | $25 |
| QOL Medical, LLC | 1 | $21 |
| Nestle Healthcare Nutrition Inc. | 1 | $20 |
| Apollo Endosurgery US Inc | 2 | $4 |
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.
- EchoTip$268,111
- ECHOTIP INSIGHT$112,306
- Cook Medical Endoscopic Ultrasound$19,103
- Cook Medical Hemostasis$7,611
- Cook Medical Hemospray$4,182
- Hemospray$1,335
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$600
- GENERAL - THERAPIES$465
- LINZESS$250
- AXIOS$131
- Skyrizi$125
- FUJIFILM$116
How this compares
$659,365 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 |
|---|---|---|
| CreonLipase/Protease/Amylase | 23 | $39,556 |
| ZenpepLipase/Protease/Amylase | 22 | $22,150 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 45 | $3,070 |
| CholestyramineCholestyramine (With Sugar) | 15 | $1,703 |
| LoperamideLoperamide Hcl | 12 | $1,206 |
| Misoprostol | 11 | $472 |
| Ursodiol | 18 | $470 |
| Pantoprazole Sodium | 52 | $442 |
| Omeprazole | 36 | $423 |
| Famotidine | 36 | $222 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 16 | $203 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieCreon | $1,105 | $39,55623 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 1,885 gastroenterology providers in California.
Other gastroenterology in Walnut Creek
- Bennett RothLos Angeles$2.8M
- Douglas NguyenMission Viejo$2M
- Sammy SaabLos Angeles$1.9M
- Kenneth ChangNewport Beach$1.3M
- Joo HwangStanford$1M
- Quan Nhula Jolla$641K
- Sadeea AbbasiLos Angeles$556K
- Ali RezaieWest Hollywood$519K
- Kenneth BinmoellerSan Francisco$507K
- Maria AbreuWest Hollywood$491K
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.