Karen Marie Flores, MD
Nephrology · Saint Louis, MONPI 1811531841
Payments from drug & device makers
Across 9 payments — averaging $47.62 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Travere Therapeutics, Inc.$125
- Sanofi-aventis U.S. LLC$95
- United Therapeutics Corporation$83
- Vifor Pharma, Inc.$50
- Nxstage Medical, Inc.$30
- Novo Nordisk$16
- plus $30 from 2 others
What the payments were for
- Food & beverage$33478%
- Education$9522%
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 |
|---|---|---|
| Travere Therapeutics, Inc. | 1 | $125 |
| Sanofi-aventis U.S. LLC | 1 | $95 |
| United Therapeutics Corporation | 1 | $83 |
| Vifor Pharma, Inc. | 1 | $50 |
| Nxstage Medical, Inc. | 2 | $30 |
| Novo Nordisk | 1 | $16 |
| Baxter Healthcare | 1 | $15 |
| Bayer | 1 | $15 |
How this compares
$429 in reported general payments places this provider in the 35th percentile of 253 nephrology providers in Missouri.
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 |
|---|---|---|
| LokelmaSodium Zirconium Cyclosilicate | 21 | $15,532 |
| EliquisApixaban | 25 | $14,442 |
| TradjentaLinagliptin | 16 | $12,342 |
| Valganciclovir Hcl | 71 | $12,164 |
| JardianceEmpagliflozin | 13 | $8,719 |
| Tacrolimus | 47 | $5,851 |
| Mycophenolic AcidMycophenolate Sodium | 15 | $3,545 |
| Acyclovir | 158 | $2,465 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 337 | $2,025 |
| Prednisone | 433 | $2,001 |
| Atorvastatin Calcium | 367 | $1,820 |
| Nifedipine ErNifedipine | 99 | $1,754 |
| Carvedilol | 259 | $1,357 |
| Famotidine | 217 | $1,317 |
| Pantoprazole Sodium | 247 | $1,303 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Saint Louis
- Benjamin HumphreysSaint Louis$1.2M
- Daniel CoyneSaint Louis$563K
- Tarek AlhamadSaint Louis$477K
- Tingting LiSaint Louis$370K
- Anuja JavaSaint Louis$365K
- Marcos RothsteinSaint Louis$350K
- Ying ChenSaint Louis$300K
- Gonzalo Matzumura UmemotoSaint Louis$263K
- Rowena Delos SantosSaint Louis$163K
- John EdwardsSaint Louis$137K
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.