Nazia Hasan
Gastroenterology · Fairfield, CANPI 1831394667
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $11,875 of the $18,509 with a category attached, or 64.2%. Boston Scientific accounts for 92.7% of it on its own, with 15 other manufacturers making up the rest. Reporting peaked in 2023 at $12,972 and has fallen 83.5% since, to $2,140 in 2025.
Across 79 payments — averaging $234.30 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$17K
- Cook Medical LLC$460
- AbbVie$202
- ERBE USA Inc$194
- Medtronic$125
- Johnson & Johnson$57
- plus $307 from 10 others
What the payments were for
- Speaking & faculty fees$11,87564%
- Travel & lodging$3,62920%
- Food & beverage$3,00516%
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 | 42 | $17,165 |
| Cook Medical LLC | 5 | $460 |
| AbbVie | 11 | $202 |
| ERBE USA Inc | 2 | $194 |
| Medtronic | 1 | $125 |
| Johnson & Johnson | 3 | $57 |
| Redhill Biopharma Inc. | 2 | $44 |
| Gilead | 2 | $43 |
| QOL Medical, LLC | 2 | $41 |
| Merck | 2 | $38 |
| Braintree Laboratories, Inc. | 2 | $34 |
| Lilly USA, LLC | 1 | $31 |
| Pfizer | 1 | $22 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $21 |
| Shionogi Inc | 1 | $19 |
| Ironwood Pharmaceuticals, Inc | 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.
- SPYGLASS$1,308
- ORISE$727
- EXALT Model D$509
- AXIOS$241
- Resolution 360 ULTRA Clip$159
- FUSION$132
- NEXPOWDER$125
- Hemospray$117
- VIO3 Erbejet2 Hybridknife Flex$115
- ECHOTIP INSIGHT$112
How this compares
$18,509 in reported general payments places this provider in the 85th 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 |
|---|---|---|
| Ciprofloxacin Hcl | 20 | $70 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Fairfield
- Bennett RothLos Angeles$2.8M
- Douglas NguyenMission Viejo$2M
- Sammy SaabLos Angeles$1.9M
- Kenneth ChangNewport Beach$1.3M
- Joo HwangStanford$1M
- Drew SchembreWalnut Creek$659K
- Quan Nhula Jolla$641K
- Sadeea AbbasiLos Angeles$556K
- Ali RezaieWest Hollywood$519K
- Kenneth BinmoellerSan Francisco$507K
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.