James Simon, MD
Nephrology · Cleveland, OHNPI 1346231180
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $21,013 of the $29,355 with a category attached, or 71.6%. AstraZeneca accounts for 91.8% of it on its own, with 4 other manufacturers making up the rest. Reporting peaked in 2020 at $15,976 and has fallen 86.9% since, to $2,100 in 2025. Among nephrology clinicians in OH 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 53 payments — averaging $553.87 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$27K
- Calliditas Therapeutics US Inc.$2K
- Masimo Corporation$195
- Aurinia Pharma U.S., Inc.$108
- Travere Therapeutics, Inc.$1
Across 10 payments — averaging $12,722 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.
- Sanofi$108K
- Biogen$19K
What the payments were for
- Consulting fees$2,1007%
- Speaking & faculty fees$21,01372%
- Travel & lodging$4,91517%
- Food & beverage$1,3265%
- Education$10%
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 |
|---|---|---|
| AstraZeneca | 48 | $26,951 |
| Calliditas Therapeutics US Inc. | 1 | $2,100 |
| Masimo Corporation | 2 | $195 |
| Aurinia Pharma U.S., Inc. | 1 | $108 |
| Travere Therapeutics, Inc. | 1 | $1 |
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
$29,355 in reported general payments places this provider in the 90th 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 |
|---|---|---|
| JardianceEmpagliflozin | 92 | $78,339 |
| FarxigaDapagliflozin Propanediol | 39 | $33,548 |
| Spironolactone | 34 | $1,095 |
| Nebivolol Hcl | 26 | $1,038 |
| Mycophenolate Mofetil | 13 | $944 |
| Valsartan | 14 | $818 |
| Carvedilol | 60 | $810 |
| Amlodipine Besylate | 76 | $506 |
| Atorvastatin Calcium | 49 | $492 |
| Lisinopril | 53 | $390 |
| Losartan Potassium | 39 | $359 |
| Irbesartan | 17 | $344 |
| Chlorthalidone | 31 | $329 |
| Hydralazine Hcl | 15 | $322 |
| Nifedipine ErNifedipine | 14 | $278 |
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 | $26,951 | $33,54839 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 90th percentile of 450 nephrology providers in Ohio.
Other nephrology in Cleveland
- Georges NakhoulCleveland$255K
- Sankar NavaneethanCleveland$253K
- Sevag DemirjianCleveland$158K
- Elias BassilCleveland$80K
- Ali MehdiCleveland$76K
- Amitkumar PatelCleveland$70K
- Emilio PoggioCleveland$41K
- Corey CavanaughCleveland$35K
- Ziad ZakyCleveland$20K
- Nishigandha PradhanCleveland$17K
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.