Greg Sharon, MD
Allergy & Immunology · Bloomingdale, ILNPI 1619950250
Payments from drug & device makers
Across 576 payments — averaging $18.43 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Optinose US, Inc.$2K
- GSK$1K
- AstraZeneca$1K
- Takeda Pharmaceuticals U.S.A., Inc.$709
- CSL Behring$655
- AbbVie$457
- plus $5K from 29 others
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 |
|---|---|---|
| Optinose US, Inc. | 64 | $1,610 |
| GSK | 108 | $1,322 |
| AstraZeneca | 64 | $1,176 |
| Takeda Pharmaceuticals U.S.A., Inc. | 33 | $709 |
| CSL Behring | 35 | $655 |
| AbbVie | 24 | $457 |
| Regeneron Healthcare Solutions, Inc. | 24 | $419 |
| Genentech USA, Inc. | 18 | $404 |
| Covis Pharma GmbH | 20 | $380 |
| Shire North American Group Inc | 19 | $376 |
| Grifols USA, LLC | 19 | $338 |
| Pharming Healthcare, Inc. | 14 | $287 |
| Boehringer Ingelheim | 15 | $283 |
| Sanofi | 12 | $263 |
| Amgen | 13 | $248 |
| Teva Pharmaceuticals USA, Inc. | 14 | $246 |
| Nestle Healthcare Nutrition Inc. | 8 | $210 |
| Pfizer | 10 | $158 |
| Bio Products Laboratory USA, Inc. | 10 | $154 |
| Novartis | 9 | $144 |
| Octapharma USA, Inc. | 3 | $118 |
| Blueprint Medicines Corporation | 4 | $109 |
| Kaleo, Inc. | 6 | $99 |
| Kedrion Biopharma Inc. | 4 | $72 |
| Alk-abello, Inc | 4 | $67 |
| QOL Medical, LLC | 8 | $57 |
| Aimmune Therapeutics, Inc. | 3 | $54 |
| Biocryst US Sales Co., LLC | 3 | $53 |
| Hospira, Inc. | 1 | $25 |
| LEO Pharma Inc. | 1 | $24 |
| Eyevance Pharmaceuticals LLC | 2 | $23 |
| Incyte Corporation | 1 | $21 |
| Biocryst Pharmaceuticals, Inc. | 1 | $19 |
| Biohaven Pharmaceutical Holding Company Ltd. | 1 | $19 |
| Phadia US Inc. | 1 | $15 |
How this compares
$10,613 in reported general payments places this provider in the 70th percentile of 161 allergy & immunology providers in Illinois.
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.
Other allergy & immunology in Bloomingdale
- Dareen SiriNormal$5.9M
- Giselle MosnaimChicago$2.2M
- Anju PetersChicago$2.1M
- Priya BansalSaint Charles$1.3M
- Rachna ShahMelrose Park$1M
- Melanie MakhijaChicago$402K
- Elizabeth LippnerChicago$329K
- Patrick WinShiloh$314K
- Christina CiaccioChicago$310K
- Amanda SalihChicago$160K
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.