Faten Ayyoub, MD
Nephrology · Saint Clair Shores, MINPI 1881650760
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.4% of the total across 232 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 27 manufacturers, the largest accounting for just 24.0% — the pattern of someone who eats at a lot of different presentations.
Across 232 payments — averaging $20.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$1K
- AstraZeneca$670
- Mallinckrodt Hospital Products Inc.$388
- Vifor Pharma, Inc.$315
- Novartis$252
- Aurinia Pharma U.S., Inc.$223
- plus $2K from 21 others
Across 3 payments — averaging $10,391 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.
- AstraZeneca$31K
What the payments were for
- Food & beverage$4,81999%
- Education$271%
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 |
|---|---|---|
| Amgen(2 entities) | 62 | $1,162 |
| AstraZeneca | 33 | $670 |
| Mallinckrodt Hospital Products Inc. | 17 | $388 |
| Vifor Pharma, Inc. | 16 | $315 |
| Novartis | 12 | $252 |
| Aurinia Pharma U.S., Inc. | 10 | $223 |
| Calliditas Therapeutics US Inc. | 10 | $206 |
| Bayer | 6 | $201 |
| Akebia Therapeutics Inc | 10 | $190 |
| Boehringer Ingelheim | 7 | $149 |
| Ardelyx, Inc. | 7 | $142 |
| ANI Pharmaceuticals, Inc. | 6 | $117 |
| Medtronic | 1 | $115 |
| Fresenius USA Marketing, Inc. | 6 | $109 |
| Acorda Therapeutics, Inc | 1 | $100 |
| GSK | 5 | $99 |
| Daiichi Sankyo Inc. | 4 | $71 |
| Otsuka America Pharmaceutical, Inc. | 4 | $70 |
| Takeda Pharmaceuticals U.S.A., Inc. | 4 | $67 |
| Novo Nordisk | 3 | $65 |
| Apellis Pharmaceuticals, Inc. | 1 | $32 |
| Travere Therapeutics, Inc. | 2 | $25 |
| Ascendis Pharma Endocrinology Inc | 1 | $18 |
| Mallinckrodt Enterprises LLC | 1 | $17 |
| Johnson & Johnson | 1 | $16 |
| Shire North American Group Inc | 1 | $13 |
| Radius Health, 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.
How this compares
$4,846 in reported general payments places this provider in the 80th percentile of 325 nephrology providers in Michigan.
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 |
|---|---|---|
| ProsolParenteral Amino Acid 20% No.1 | 33 | $4,912 |
| Bumetanide | 29 | $2,002 |
| Tamsulosin Hcl | 34 | $689 |
| Hydralazine Hcl | 25 | $629 |
| Furosemide | 90 | $545 |
| Potassium Chloride | 20 | $408 |
| Lisinopril | 29 | $218 |
| Allopurinol | 13 | $106 |
| Amlodipine Besylate | 13 | $104 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Saint Clair Shores
- Richard CrossSaint Clair Shores$96K
- Alexander YevzlinAnn Arbor$1.1M
- Muwaffaq SalamehBay City$164K
- Laura MarianiAnn Arbor$150K
- Crystal Gardner-MartinLivonia$140K
- Katherine KwonSaint Joseph$111K
- Anatole BesarabDetroit$102K
- Kausik UmanathDetroit$85K
- Joel TopfRoseville$79K
- Matthias KretzlerAnn Arbor$70K
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.