Karl Pembaur, MD
Nephrology · Cincinnati, OHNPI 1760759799
Payments from drug & device makers
Across 308 payments — averaging $22.80 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bayer$1K
- AstraZeneca$995
- Vifor Pharma, Inc.$890
- Calliditas Therapeutics US Inc.$484
- Mallinckrodt Hospital Products Inc.$468
- Veloxis Pharmaceuticals, Inc.$332
- plus $3K from 27 others
What the payments were for
- Food & beverage$6,70896%
- Education$3144%
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 |
|---|---|---|
| Bayer | 45 | $1,072 |
| AstraZeneca(2 entities) | 40 | $995 |
| Vifor Pharma, Inc. | 40 | $890 |
| Calliditas Therapeutics US Inc. | 23 | $484 |
| Mallinckrodt Hospital Products Inc. | 14 | $468 |
| Veloxis Pharmaceuticals, Inc. | 11 | $332 |
| Travere Therapeutics, Inc. | 20 | $297 |
| Otsuka America Pharmaceutical, Inc. | 12 | $257 |
| Takeda Pharmaceuticals U.S.A., Inc. | 10 | $238 |
| Boehringer Ingelheim | 11 | $228 |
| Amgen(2 entities) | 12 | $207 |
| Aurinia Pharma U.S., Inc. | 8 | $166 |
| Scpharmaceuticals Inc. | 7 | $166 |
| Novartis | 6 | $159 |
| Mallinckrodt Enterprises LLC | 3 | $152 |
| Fresenius USA Marketing, Inc. | 8 | $136 |
| Akebia Therapeutics Inc | 6 | $123 |
| Daiichi Sankyo Inc. | 7 | $122 |
| Merck | 5 | $108 |
| GSK | 5 | $87 |
| Eurofins Viracor, LLC | 1 | $62 |
| Apellis Pharmaceuticals, Inc. | 2 | $43 |
| Ultragenyx Pharmaceutical Inc. | 2 | $36 |
| Leadiant Biosciences, Inc. | 1 | $27 |
| Renalytix AI, Inc. | 1 | $24 |
| Ardelyx, Inc. | 1 | $23 |
| Shire North American Group Inc | 1 | $21 |
| ANI Pharmaceuticals, Inc. | 1 | $20 |
| Johnson & Johnson | 1 | $18 |
| OPKO Pharmaceuticals, LLC | 1 | $17 |
| Alnylam Pharmaceuticals Inc. | 1 | $16 |
| Kyowa Kirin, Inc. | 1 | $15 |
| Lilly USA, LLC | 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
$7,023 in reported general payments places this provider in the 80th percentile of 450 nephrology providers in Ohio.
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 |
|---|---|---|
| FarxigaDapagliflozin Propanediol | 107 | $86,023 |
| KerendiaFinerenone | 53 | $38,432 |
| ProcritEpoetin Alfa | 15 | $28,887 |
| JardianceEmpagliflozin | 44 | $27,963 |
| Cinacalcet Hcl | 74 | $19,915 |
| LokelmaSodium Zirconium Cyclosilicate | 19 | $17,222 |
| Valganciclovir Hcl | 11 | $9,325 |
| Tacrolimus | 12 | $9,238 |
| Nifedipine ErNifedipine | 178 | $6,844 |
| Potassium Citrate ErPotassium Citrate | 32 | $6,315 |
| Losartan Potassium | 387 | $3,543 |
| Candesartan Cilexetil | 12 | $2,446 |
| Sevelamer Carbonate | 20 | $2,218 |
| Chlorthalidone | 115 | $1,674 |
| Calcium Acetate | 15 | $1,483 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AstraZenecaFarxiga, Lokelma | $995 | $103,245126 claims |
| BayerKerendia | $1,072 | $38,43253 claims |
| Johnson & JohnsonProcrit | $18 | $28,88715 claims |
| Boehringer IngelheimJardiance | $228 | $27,96344 claims |
| ANI Pharmaceuticals, Inc.Valsartan | $20 | $30415 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 80th percentile of 450 nephrology providers in Ohio.
Other nephrology in Cincinnati
- Prabir Roy ChaudhuryCincinnati$483K
- Amit GovilCincinnati$444K
- Manish AnandCincinnati$384K
- Kotagal KantCincinnati$334K
- Charuhas ThakarCincinnati$207K
- Suresh KamathCincinnati$159K
- Prakash GudsoorkarCincinnati$124K
- Chebel KhalilCincinnati$72K
- Ahmad AnjakCincinnati$65K
- Arshdeep TindniCincinnati$41K
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.