Matthew Lambert, MD
Nephrology · Spartanburg, SCNPI 1992840805
Payments from drug & device makers
Across 456 payments — averaging $20.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Akebia Therapeutics Inc$863
- AstraZeneca$849
- Amgen$793
- Novartis$688
- Otsuka America Pharmaceutical, Inc.$608
- Travere Therapeutics, Inc.$524
- plus $5K from 29 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 | 38 | $863 |
| AstraZeneca(2 entities) | 48 | $849 |
| Amgen(2 entities) | 39 | $793 |
| Novartis | 27 | $688 |
| Otsuka America Pharmaceutical, Inc. | 54 | $608 |
| Travere Therapeutics, Inc. | 22 | $524 |
| Mallinckrodt Hospital Products Inc. | 19 | $484 |
| ANI Pharmaceuticals, Inc. | 20 | $473 |
| Vifor Pharma, Inc. | 23 | $446 |
| Calliditas Therapeutics US Inc. | 17 | $444 |
| GSK | 22 | $412 |
| Bayer | 18 | $358 |
| Mallinckrodt Enterprises LLC | 10 | $270 |
| Aurinia Pharma U.S., Inc. | 15 | $262 |
| Novo Nordisk | 10 | $248 |
| Daiichi Sankyo Inc. | 11 | $192 |
| Fresenius USA Marketing, Inc. | 10 | $175 |
| Lilly USA, LLC | 7 | $138 |
| Ardelyx, Inc. | 5 | $126 |
| Recor Medical Inc | 1 | $125 |
| Boehringer Ingelheim | 5 | $109 |
| Ultragenyx Pharmaceutical Inc. | 6 | $99 |
| Rockwell Medical, Inc. | 5 | $88 |
| Kyowa Kirin, Inc. | 3 | $76 |
| Baxter Healthcare | 5 | $65 |
| Apellis Pharmaceuticals, Inc. | 2 | $57 |
| Inari Medical, Inc. | 1 | $56 |
| Ascendis Pharma Endocrinology Inc | 2 | $49 |
| Cormedix Inc. | 2 | $38 |
| Arbor Pharmaceuticals, Inc. | 2 | $31 |
| Hikma Pharmaceuticals USA | 2 | $30 |
| OPKO Pharmaceuticals, LLC | 2 | $29 |
| Lundbeck LLC | 1 | $20 |
| Scpharmaceuticals Inc. | 1 | $17 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $17 |
How this compares
$9,260 in reported general payments places this provider in the 75th percentile of 180 nephrology providers in South 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 Spartanburg
- Muhammad EbrahimSpartanburg$146K
- Subhashini SubramaniamSpartanburg$13K
- Tanya TangSpartanburg$11K
- Lawrence McGeeSpartanburg$11K
- Kofi AppiahSpartanburg$7K
- Charles MurdockSpartanburg$7K
- Barry GorlitskyGreenville$3.1M
- Moustafa MoustafaOrangeburg$3M
- Amy SpragueGeorgetown$1.5M
- Pusadee SuchindaSumter$1.3M
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.