Hazem Hammad, MD
Gastroenterology · Aurora, CONPI 1558572743
Payments from drug & device makers
What this record shows
This record is dominated by education: $49,105 of the $56,759 with a category attached, or 86.5%. Olympus Corporation Of The Americas accounts for 94.8% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2019 at $27,762 and has fallen 99.9% since, to $18 in 2023. Among gastroenterology clinicians in CO 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 124 payments — averaging $457.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Olympus Corporation Of The Americas$54K
- Olympus Corporation$1K
- Lumendi LLC$976
- Intuitive Surgical$350
- Olympus America Inc.$175
- Boston Scientific$71
- plus $18 from 1 others
What the payments were for
- Consulting fees$8401%
- Speaking & faculty fees$8652%
- Travel & lodging$4,6408%
- Food & beverage$1,3092%
- Education$49,10587%
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 |
|---|---|---|
| Olympus Corporation Of The Americas | 105 | $53,814 |
| Olympus Corporation | 2 | $1,355 |
| Lumendi LLC | 5 | $976 |
| Intuitive Surgical | 1 | $350 |
| Olympus America Inc. | 9 | $175 |
| Boston Scientific | 1 | $71 |
| ERBE USA Inc | 1 | $18 |
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.
- Olympus EMR & ESD Devices$24,398
- Olympus Hemostasis Devices$24,398
- Olympus EndoTherapy Accessories$23,706
- Olympus Capital Accessories$9,109
- EVIS EXERA$8,788
- ScopeGuide$8,788
- Single Use Electrosurgical Knife KD-655$8,404
- DISPOSABLE DISTAL ATTACHMENT$7,725
- Single Use Repositionable Clip$6,438
- Olympus GI Accessories$6,246
- Hemostasis Clips$2,575
- ESD$2,060
- GI Distal Attachments$2,060
- Single Use Electrosurgical Hemostatic Forceps$1,966
- DiLumen$897
- Da Vinci Surgical System$350
- Olympus EBUS Bronchoscopes$321
- Olympus Respiratory Accessories$321
How this compares
$56,759 in reported general payments places this provider in the 90th percentile of 304 gastroenterology providers in Colorado.
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 |
|---|---|---|
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 13 | $84 |
| Nystatin | 11 | $81 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Aurora
- Mihir WaghAurora$217K
- Steven EdmundowiczAurora$190K
- Raj ShahAurora$98K
- Jennifer ChristieAurora$45K
- Mohammad BilalAurora$36K
- Benjamin ClickAurora$35K
- Sachin WaniAurora$31K
- Frank ScottAurora$12K
- Mark GerichAurora$9K
- Ariana GreenwoodAurora$8K
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.