Maryam Shambayati
Pediatric Gastroenterology · Oklahoma City, OKNPI 1235486416
Payments from drug & device makers
Across 640 payments — averaging $427.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- QOL Medical, LLC$76K
- Takeda Pharmaceuticals U.S.A., Inc.$63K
- Sanofi$56K
- AbbVie$43K
- Regeneron Healthcare Solutions, Inc.$24K
- Pfizer$6K
- plus $5K from 24 others
What the payments were for
- Consulting fees$12,7905%
- Speaking & faculty fees$216,68581%
- Travel & lodging$21,7228%
- Food & beverage$17,7907%
- Education$470%
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 |
|---|---|---|
| QOL Medical, LLC | 128 | $75,999 |
| Takeda Pharmaceuticals U.S.A., Inc. | 92 | $62,941 |
| Sanofi | 31 | $56,433 |
| AbbVie | 171 | $42,764 |
| Regeneron Healthcare Solutions, Inc. | 49 | $23,860 |
| Pfizer | 14 | $6,204 |
| Johnson & Johnson | 65 | $1,803 |
| Janssen Scientific Affairs, LLC | 19 | $1,477 |
| Madrigal Pharmaceuticals | 7 | $495 |
| Nestle Healthcare Nutrition Inc. | 15 | $244 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 5 | $200 |
| Alcresta Therapeutics, Inc. | 3 | $187 |
| Gilead | 5 | $179 |
| Ipsen Biopharmaceuticals, Inc | 7 | $150 |
| Aimmune Therapeutics, Inc. | 2 | $114 |
| Ironwood Pharmaceuticals, Inc | 5 | $92 |
| Intercept Pharmaceuticals, Inc. | 3 | $58 |
| Coloplast | 2 | $49 |
| Amgen | 3 | $47 |
| Avanos Medical | 2 | $35 |
| Eisai Inc. | 2 | $35 |
| Novo Nordisk | 2 | $30 |
| Shire North American Group Inc | 1 | $25 |
| Biocon Biologics Inc | 1 | $22 |
| Albireo Pharma, Inc. | 1 | $20 |
| Amneal Pharmaceuticals LLC | 1 | $16 |
| Boehringer Ingelheim | 1 | $16 |
| Capsovision, Inc. | 1 | $15 |
| Applied Medical Technology Inc | 1 | $13 |
| AstraZeneca | 1 | $12 |
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
$273,534 in reported general payments places this provider in the 95th percentile of 20 pediatric gastroenterology providers in Oklahoma.
Other pediatric gastroenterology in Oklahoma City
- Andrea Mejia SanchezOklahoma City$82K
- Muhammad AltafOklahoma City$63K
- John GrunowOklahoma City$4K
- Abhishek WattsOklahoma City$2K
- Muhammad RiazOklahoma City$2K
- Saurabh TalathiOklahoma City$318
- Yojana SunkojOklahoma City$292
- Candaca MarshallOklahoma City$150
- Michael MorrisOklahoma City$145
- Shatha QarooniOklahoma City$109
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.