Mara Posner, DO
Gastroenterology · Las Vegas, NVNPI 1477765634
Payments from drug & device makers
Across 13 payments — averaging $29.09 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gilead$146
- Fujifilm Healthcare Americas Corporation$76
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$46
- Johnson & Johnson$36
- UCB, Inc.$21
- Pfizer$21
- plus $32 from 2 others
What the payments were for
- Food & beverage$378100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Gilead | 2 | $146 |
| Fujifilm Healthcare Americas Corporation | 1 | $76 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $46 |
| Johnson & Johnson | 3 | $36 |
| UCB, Inc. | 1 | $21 |
| Pfizer | 1 | $21 |
| Ironwood Pharmaceuticals, Inc | 1 | $19 |
| Merck | 1 | $13 |
How this compares
$378 in reported general payments places this provider in the 10th percentile of 103 gastroenterology providers in Nevada.
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 |
|---|---|---|
| LinzessLinaclotide | 35 | $33,218 |
| Omeprazole | 412 | $8,747 |
| SutabSod Sulf/Pot Chloride/Mag Sulf | 53 | $8,688 |
| Mesalamine | 36 | $8,154 |
| ClenpiqSod Picosulf/Mag Ox/Citric Ac | 31 | $5,394 |
| Dicyclomine Hcl | 266 | $4,440 |
| Famotidine | 162 | $3,586 |
| Rabeprazole Sodium | 57 | $3,427 |
| Colesevelam Hcl | 30 | $3,259 |
| Ursodiol | 13 | $2,889 |
| Mesalamine ErMesalamine | 15 | $2,233 |
| Pantoprazole Sodium | 141 | $2,148 |
| Colestipol Hcl | 25 | $2,111 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 37 | $2,091 |
| Ondansetron OdtOndansetron | 63 | $2,032 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Las Vegas
- Christian StoneLas Vegas$3.7M
- Michael ZimmermanLas Vegas$717K
- James HanLas Vegas$47K
- Tousif PashaLas Vegas$44K
- Filippo CremoniniLas Vegas$36K
- Vijay JayaramanLas Vegas$28K
- Gary ChenLas Vegas$27K
- David ShihLas Vegas$26K
- Noel FajardoLas Vegas$22K
- Frank FarisLas Vegas$14K
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.