Nicolas Xydas
Gynecology · Houston, TXNPI 1922034669
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $17,600 of the $19,071 with a category attached, or 92.3%. Mimedx Group, Inc. accounts for 92.3% of it on its own, with 18 other manufacturers making up the rest. 2025 is the largest year on record at $10,535, more than ten times the $260 reported in 2019. Among gynecology clinicians in TX 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 87 payments — averaging $219.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mimedx Group, Inc.$18K
- Astellas Pharma US Inc$466
- Shield Therapeutics Inc$217
- AbbVie$213
- Hologic Sales And Service, LLC$169
- Johnson & Johnson$87
- plus $321 from 13 others
What the payments were for
- Consulting fees$17,60092%
- Food & beverage$1,3717%
- Education$1001%
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 |
|---|---|---|
| Mimedx Group, Inc. | 19 | $17,600 |
| Astellas Pharma US Inc | 19 | $466 |
| Shield Therapeutics Inc | 11 | $217 |
| AbbVie | 8 | $213 |
| Hologic Sales And Service, LLC | 9 | $169 |
| Johnson & Johnson | 2 | $87 |
| Biogen | 2 | $56 |
| Mission Pharmacal Company | 4 | $53 |
| Mayne Pharma Commercial LLC | 3 | $42 |
| Pfizer | 1 | $29 |
| Innovation Technologies Inc | 1 | $21 |
| Bayer | 1 | $18 |
| Optumhealth Care Solutions, LLC | 1 | $17 |
| Galderma Laboratories, L.p. | 1 | $17 |
| Cumberland Pharmaceuticals, Inc. | 1 | $17 |
| Exeltis, USA Inc. | 1 | $16 |
| Lupin Inc. | 1 | $12 |
| Merck | 1 | $12 |
| Therapeuticsmd, 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.
- BOVINE COLLAGEN$2,200
How this compares
$19,071 in reported general payments places this provider in the 90th percentile of 161 gynecology providers in Texas.
Other gynecology in Houston
- Robert ZurawinHouston$61K
- Maurice LeibmanHouston$10K
- Glenn MorganHouston$7K
- Alfred PoindexterHouston$5K
- Pinky RonenHouston$4K
- M Bruce ChristophersonHouston$3K
- John IrwinHouston$2K
- Richard FarnamEl Paso$1.2M
- Jessica ShepherdDallas$809K
- Linda LacyEl Paso$627K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.