Cynthia Christiano, MD
Nephrology · Greenville, NCNPI 1912905043
Payments from drug & device makers
Across 418 payments — averaging $1182.62 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Akebia Therapeutics Inc$233K
- CSL Behring$167K
- Bayer$89K
- Janssen Research & Development, LLC$4K
- Vifor Pharma, Inc.$331
- AstraZeneca$269
- plus $1K from 15 others
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 |
|---|---|---|
| Akebia Therapeutics Inc | 206 | $232,572 |
| CSL Behring | 77 | $167,498 |
| Bayer | 39 | $88,825 |
| Janssen Research & Development, LLC | 1 | $3,717 |
| Vifor Pharma, Inc. | 20 | $331 |
| AstraZeneca(2 entities) | 16 | $269 |
| Amgen(2 entities) | 8 | $178 |
| Fresenius USA Marketing, Inc. | 7 | $148 |
| Mallinckrodt Hospital Products Inc. | 7 | $141 |
| Aurinia Pharma U.S., Inc. | 8 | $132 |
| Calliditas Therapeutics US Inc. | 4 | $81 |
| Otsuka America Pharmaceutical, Inc. | 4 | $78 |
| Sanofi | 3 | $57 |
| Nxstage Medical, Inc. | 2 | $54 |
| GSK | 3 | $53 |
| Mallinckrodt Enterprises LLC | 3 | $49 |
| Travere Therapeutics, Inc. | 4 | $45 |
| OPKO Pharmaceuticals, LLC | 2 | $41 |
| Veloxis Pharmaceuticals, Inc. | 2 | $31 |
| La Jolla Pharmaceutical Company | 1 | $18 |
| Shire North American Group Inc | 1 | $17 |
How this compares
$494,335 in reported general payments places this provider in the 90th percentile of 366 nephrology providers in North Carolina.
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.
Other nephrology in Greenville
- Nauman ShahidGreenville$2M
- Reginald ObiGreenville$328K
- Paul BolinGreenville$227K
- William KendrickGreenville$125K
- Daniel EdmonstonDurham$9.9M
- Gregory GreenwoodWinston-Salem$4.1M
- Barry FreedmanWinston Salem$3.5M
- Manuel MonteroNew Bern$2.5M
- Rekha JohnKinston$2.3M
- Eric KirkWilmington$1.7M
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.