Margaret Landwermeyer, MD
Obstetrics & Gynecology · Austin, TXNPI 1790758134
Payments from drug & device makers
Across 241 payments — averaging $17.51 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$1K
- Hologic Sales And Service, LLC$350
- Intuitive Surgical$308
- Exeltis, USA Inc.$307
- Davol Inc.$227
- Myovant Sciences Inc.$195
- plus $1K from 31 others
What the payments were for
- Food & beverage$4,220100%
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 |
|---|---|---|
| AbbVie(2 entities) | 117 | $1,411 |
| Hologic Sales And Service, LLC | 15 | $350 |
| Intuitive Surgical | 5 | $308 |
| Exeltis, USA Inc. | 18 | $307 |
| Davol Inc. | 3 | $227 |
| Myovant Sciences Inc. | 8 | $195 |
| Organon | 6 | $131 |
| Mayne Pharma Commercial LLC | 4 | $112 |
| Evofem Biosciences, Inc. | 5 | $109 |
| Pfizer | 5 | $91 |
| Vertical Pharmaceuticals, LLC | 5 | $89 |
| Bayer | 5 | $85 |
| Conmed Corporation | 1 | $83 |
| Therapeuticsmd, Inc. | 5 | $74 |
| Astellas Pharma US Inc | 4 | $67 |
| Valencia Technologies Corporation | 1 | $63 |
| Lupin Inc. | 4 | $62 |
| Merck | 3 | $47 |
| Minerva Surgical, Inc | 4 | $46 |
| Shield Therapeutics Inc | 2 | $39 |
| Biogen | 2 | $37 |
| Avion Pharmaceuticals | 2 | $35 |
| Agile Therapeutics, Inc. | 2 | $34 |
| Boston Scientific | 1 | $25 |
| Coloplast | 1 | $25 |
| Scynexis, Inc. | 1 | $21 |
| BD | 1 | $18 |
| Azurity Pharmaceuticals, Inc. | 1 | $18 |
| Biohaven Pharmaceutical Holding Company Ltd. | 1 | $18 |
| Coopersurgical, Inc. | 1 | $16 |
| Duchesnay USA Incorporated | 1 | $14 |
| Meditrina | 1 | $14 |
| Pacira Pharmaceuticals Incorporated | 1 | $14 |
| Ascend Therapeutics US, LLC | 1 | $13 |
| Endo Pharmaceuticals Inc. | 1 | $12 |
| Aspira Women's Health Inc | 1 | $11 |
| Unified Women's Healthcare, LP | 2 | $0 |
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.
- MYFEMBREE$131
- Da Vinci Surgical System$111
- Phasix Mesh$111
- BD MAX$102
How this compares
$4,220 in reported general payments places this provider in the 80th percentile of 3,099 obstetrics & gynecology providers in Texas.
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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Estradiol | 91 | $5,826 |
| ProgesteroneProgesterone, Micronized | 83 | $2,572 |
| Estradiol (Once Weekly)Estradiol | 12 | $1,498 |
| Clobetasol Propionate | 20 | $1,348 |
| Estradiol (Twice Weekly)Estradiol | 11 | $935 |
| Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst | 14 | $845 |
| ValacyclovirValacyclovir Hcl | 19 | $387 |
| Zolpidem Tartrate | 15 | $84 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in Austin
- Devin GarzaAustin$2M
- Shawn TassoneAustin$1.3M
- Melissa WinnAustin$1.1M
- Laura DowningAustin$464K
- Ana EduardoAustin$303K
- Stephanie ReichAustin$249K
- Renu ChalasaniAustin$156K
- Amir JazaeriHouston$19.5M
- Shannon WestinHouston$17.3M
- Monica LopezFort Worth$8.1M
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.