Stephen Dimarzo
Obstetrics & Gynecology · San Diego, CANPI 1366479461
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 95.5% of the total across 68 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 20 manufacturers, the largest accounting for just 21.9% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $764 and has fallen 65.3% since, to $265 in 2024.
Across 68 payments — averaging $24.02 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Organon$358
- Astellas Pharma US Inc$273
- AbbVie$201
- Pfizer$158
- Therapeuticsmd, Inc.$86
- Avion Pharmaceuticals$78
- plus $480 from 14 others
What the payments were for
- Food & beverage$1,56096%
- Education$734%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Organon | 4 | $358 |
| Astellas Pharma US Inc | 9 | $273 |
| AbbVie(2 entities) | 9 | $201 |
| Pfizer | 9 | $158 |
| Therapeuticsmd, Inc. | 5 | $86 |
| Avion Pharmaceuticals | 5 | $78 |
| AMAG Pharmaceuticals, Inc. | 4 | $73 |
| Mission Pharmacal Company | 4 | $66 |
| Merck | 4 | $60 |
| BD | 1 | $56 |
| Roche Diagnostics Corporation | 2 | $37 |
| Duchesnay USA Incorporated | 2 | $31 |
| Daiichi Sankyo Inc. | 2 | $31 |
| Exeltis, USA Inc. | 2 | $31 |
| Aspira Women's Health Inc | 1 | $23 |
| Hologic Sales And Service, LLC | 1 | $15 |
| Mayne Pharma Commercial LLC | 1 | $15 |
| Bayer | 1 | $15 |
| Minerva Surgical, Inc | 1 | $14 |
| Dysis Medical, Inc. | 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.
- NEXPLANON$313
How this compares
$1,634 in reported general payments places this provider in the 70th percentile of 3,784 obstetrics & gynecology providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Estradiol | 14 | $806 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in San Diego
- Antoinette Marengo BarbickSan Diego$69K
- Jeffrey WooSan Diego$31K
- Steve YuNorthridge$964K
- Samir HageRedlands$640K
- Malcolm MunroLos Angeles$609K
- Michael KrychmanCosta Mesa$547K
- Anita NelsonTorrance$530K
- Jan SegnitzSan Jose$511K
- Risa KaganBerkeley$497K
- Michael GreenOxnard$424K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.