Issam Daya, MD
Obstetrics & Gynecology · Towson, MDNPI 1750424552
Payments from drug & device makers
Across 351 payments — averaging $2677.78 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sumitomo Pharma America, Inc.$254K
- Evofem Biosciences, Inc.$196K
- Organon$150K
- Mitsubishi Tanabe Pharma Development America, Inc.$107K
- AbbVie$104K
- Myovant Sciences GmbH$64K
- plus $64K from 24 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 |
|---|---|---|
| Sumitomo Pharma America, Inc. | 54 | $254,372 |
| Evofem Biosciences, Inc. | 36 | $195,979 |
| Organon | 22 | $150,162 |
| Mitsubishi Tanabe Pharma Development America, Inc. | 4 | $106,854 |
| AbbVie(2 entities) | 52 | $104,276 |
| Myovant Sciences GmbH | 17 | $64,198 |
| Bayer | 13 | $45,949 |
| Myovant Sciences Inc. | 16 | $15,461 |
| Astellas Pharma US Inc | 14 | $482 |
| Exeltis, USA Inc. | 20 | $384 |
| Therapeuticsmd, Inc. | 21 | $365 |
| Sage Therapeutics, LLC | 11 | $246 |
| Avion Pharmaceuticals | 16 | $201 |
| Millicent US Inc | 11 | $191 |
| Pfizer | 10 | $174 |
| Mayne Pharma Commercial LLC | 6 | $96 |
| Coopersurgical, Inc. | 2 | $74 |
| Lupin Inc. | 3 | $61 |
| Daiichi Sankyo Inc. | 4 | $60 |
| Supernus Pharmaceuticals, Inc. | 2 | $57 |
| Hologic Sales And Service, LLC | 2 | $49 |
| Aspira Women's Health Inc | 2 | $41 |
| AMAG Pharmaceuticals, Inc. | 2 | $36 |
| Scynexis, Inc. | 1 | $31 |
| Amgen(2 entities) | 2 | $25 |
| Shield Therapeutics Inc | 1 | $25 |
| Exact Sciences | 1 | $21 |
| Channel Medsystems, Inc. | 1 | $19 |
| Meditrina | 1 | $11 |
| Unified Women's Healthcare, LP | 4 | $0 |
How this compares
$939,900 in reported general payments places this provider in the 95th percentile of 842 obstetrics & gynecology providers in Maryland.
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 obstetrics & gynecology in Towson
- Anna PowellTowson$13K
- Colleen McCormickBaltimore$1.9M
- Jenell ColemanBaltimore$1.2M
- Otis StittSilver Spring$641K
- Danielle ShillerBaltimore$473K
- Owen ReganCumberland$165K
- Anne BurkeBaltimore$159K
- Matthew ReevesChevy Chase$149K
- Steven BehramRockville$146K
- Rebecca StoneBaltimore$143K
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.