Mark Leondires
Obstetrics & Gynecology · Norwalk, CTNPI 1063437275
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $27,750 of the $30,962 with a category attached, or 89.6%. EMD Serono, Inc. accounts for 71.1% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2023 at $19,268 and has fallen 99.3% since, to $140 in 2025. Among obstetrics & gynecology clinicians in CT with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 81 payments — averaging $382.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- EMD Serono, Inc.$22K
- Ferring Pharmaceuticals Inc.$8K
- Merck Kgaa$1K
- Coopersurgical, Inc.$129
- Merck$96
- Organon$48
- plus $51 from 2 others
Across 27 payments — averaging $52,240 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- IBSA Institut Biochimique SA$1.4M
What the payments were for
- Consulting fees$27,75090%
- Travel & lodging$1,1534%
- Food & beverage$2,0397%
- Education$200%
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 |
|---|---|---|
| EMD Serono, Inc. | 27 | $22,006 |
| Ferring Pharmaceuticals Inc. | 36 | $7,542 |
| Merck Kgaa | 1 | $1,090 |
| Coopersurgical, Inc. | 7 | $129 |
| Merck | 5 | $96 |
| Organon | 3 | $48 |
| Vitrolife Inc. | 1 | $38 |
| Galen US 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.
How this compares
$30,962 in reported general payments places this provider in the 95th percentile of 605 obstetrics & gynecology providers in Connecticut.
Other obstetrics & gynecology in Norwalk
- Mary MinkinNew Haven$285K
- Alessandro SantinNew Haven$98K
- Frederick RauHartford$89K
- Peter AuerbachGroton$41K
- Shieva GhofranyStamford$33K
- Alan FineHartford$30K
- Sean FlahertyHamden$28K
- Adam SteinbergHartford$23K
- Sarp AkselStamford$22K
- Timothy MachonEnfield$22K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.