Darryn Potosky, MD
Gastroenterology · Laurel, MDNPI 1538384862
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $45,790 of the $71,867 with a category attached, or 63.7%. 16 manufacturers reported payments, led by Echosens North America, Inc. at 58.4% of the total. 2025 is the largest year on record at $20,760, 2.6 times the $7,954 reported in 2019. Among gastroenterology clinicians in MD with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 96 payments — averaging $748.62 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Echosens North America, Inc.$42K
- Madrigal Pharmaceuticals$25K
- Intercept Pharmaceuticals, Inc.$3K
- Ipsen Biopharmaceuticals, Inc$2K
- Fujifilm Healthcare Americas Corporation$242
- AbbVie$174
- plus $397 from 10 others
What the payments were for
- Consulting fees$23,02832%
- Speaking & faculty fees$45,79064%
- Travel & lodging$8231%
- Food & beverage$2,1933%
- Education$340%
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 |
|---|---|---|
| Echosens North America, Inc. | 38 | $41,999 |
| Madrigal Pharmaceuticals | 24 | $24,864 |
| Intercept Pharmaceuticals, Inc. | 1 | $2,640 |
| Ipsen Biopharmaceuticals, Inc | 3 | $1,551 |
| Fujifilm Healthcare Americas Corporation | 2 | $242 |
| AbbVie | 9 | $174 |
| Gilead | 6 | $123 |
| Sanofi | 3 | $77 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $52 |
| Johnson & Johnson | 1 | $33 |
| Kadmon Pharmaceuticals LLC | 1 | $25 |
| Braintree Laboratories, Inc. | 1 | $20 |
| Shionogi Inc | 1 | $19 |
| Orphalan Inc | 1 | $19 |
| Alnylam Pharmaceuticals Inc. | 1 | $17 |
| Merck | 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.
How this compares
$71,867 in reported general payments places this provider in the 90th percentile of 455 gastroenterology providers in Maryland.
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 |
|---|---|---|
| OcalivaObeticholic Acid | 23 | $254,582 |
| RezdiffraResmetirom | 15 | $58,631 |
| LinzessLinaclotide | 19 | $26,924 |
| ViberziEluxadoline | 12 | $19,321 |
| MotegrityPrucalopride Succinate | 18 | $16,037 |
| Ursodiol | 57 | $13,955 |
| Sirolimus | 13 | $13,593 |
| Mycophenolate Mofetil | 14 | $7,661 |
| Budesonide EcBudesonide | 11 | $4,404 |
| Tacrolimus | 21 | $4,300 |
| SutabSod Sulf/Pot Chloride/Mag Sulf | 13 | $2,073 |
| Famotidine | 104 | $2,000 |
| Pantoprazole Sodium | 85 | $1,716 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 27 | $1,413 |
| Budesonide DrBudesonide | 11 | $784 |
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 |
|---|---|---|
| Intercept Pharmaceuticals, Inc.Ocaliva | $2,640 | $254,58223 claims |
| Madrigal PharmaceuticalsRezdiffra | $24,864 | $58,63115 claims |
| AbbVieLinzess, Viberzi | $174 | $46,24431 claims |
| Braintree Laboratories, Inc.Sutab | $20 | $2,07313 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 90th percentile of 455 gastroenterology providers in Maryland.
Other gastroenterology in Laurel
- Theodore KimLaurel$20K
- Apurva ModiRockville$1.1M
- Sergey KantsevoyBaltimore$1.1M
- Anurag MaheshwariBaltimore$803K
- Aline Charabaty PishvaianBaltimore$631K
- Zachary BormanChevy Chase$520K
- Mouen KhashabBaltimore$440K
- Erica CohenChevy Chase$385K
- Natarajan RavendhranCatonsville$367K
- Raymond CrossBaltimore$341K
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.