John Kang, MD
Nephrology · Bronx, NYNPI 1427459734
Payments from drug & device makers
Across 802 payments — averaging $116.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$52K
- Calliditas Therapeutics US Inc.$29K
- AstraZeneca$4K
- Bayer$1K
- ANI Pharmaceuticals, Inc.$807
- Travere Therapeutics, Inc.$764
- plus $6K from 28 others
What the payments were for
- Consulting fees$6,2467%
- Speaking & faculty fees$63,13868%
- Travel & lodging$6,2837%
- Food & beverage$17,10518%
- Education$2590%
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) | 210 | $51,847 |
| Calliditas Therapeutics US Inc. | 87 | $28,935 |
| AstraZeneca | 71 | $4,036 |
| Bayer | 53 | $1,085 |
| ANI Pharmaceuticals, Inc. | 67 | $807 |
| Travere Therapeutics, Inc. | 45 | $764 |
| Novo Nordisk | 40 | $734 |
| Boehringer Ingelheim | 11 | $719 |
| Vifor Pharma, Inc. | 28 | $511 |
| Fresenius USA Marketing, Inc. | 23 | $401 |
| Mannkind Corporation | 72 | $365 |
| Sanofi-aventis U.S. LLC | 4 | $361 |
| Otsuka America Pharmaceutical, Inc. | 15 | $339 |
| Intuity Medical Inc | 12 | $295 |
| Ascendis Pharma Endocrinology Inc | 7 | $202 |
| Lilly USA, LLC | 8 | $201 |
| Novartis | 11 | $187 |
| Exact Sciences | 4 | $187 |
| Merz North America, Inc. | 1 | $186 |
| THD America, Inc. | 1 | $154 |
| Ardelyx, Inc. | 1 | $149 |
| Medtronic | 6 | $137 |
| Aurinia Pharma U.S., Inc. | 6 | $88 |
| Amarin Pharma, Inc. | 3 | $59 |
| Abbott | 3 | $56 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 3 | $53 |
| Xeris Pharmaceuticals, Inc. | 3 | $42 |
| Alnylam Pharmaceuticals Inc. | 1 | $30 |
| Akebia Therapeutics Inc | 1 | $23 |
| GSK | 1 | $22 |
| Kyowa Kirin, Inc. | 1 | $15 |
| Angiodynamics, Inc. | 1 | $15 |
| Corcept Therapeutics | 1 | $15 |
| Merck | 1 | $15 |
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.
- KRYSTEXXA$47,872
- TARPEYO$28,060
- FARXIGA$2,677
- JARDIANCE$623
- LOKELMA$442
- Kerendia$377
- Repatha$247
- Pogo Automatic Blood Glucose Monitoring System$229
- EVENITY$229
- XPHOZAH 30 MG$149
- SOLIQUA 100/33$142
- MOUNJARO$125
- Cologuard Collection Kit$125
- Wegovy$125
- Filspari$125
- Prolia$122
- Ozempic$119
- TOUJEO$118
- Yorvipath$114
How this compares
$93,031 in reported general payments places this provider in the 90th percentile of 935 nephrology providers in New York.
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 |
|---|---|---|
| KrystexxaPegloticase | 26 | $1,387,206 |
| FarxigaDapagliflozin Propanediol | 355 | $277,838 |
| TarpeyoBudesonide | 11 | $185,938 |
| KerendiaFinerenone | 249 | $173,144 |
| LokelmaSodium Zirconium Cyclosilicate | 134 | $141,559 |
| FilspariSparsentan | 12 | $128,330 |
| VeltassaPatiromer Calcium Sorbitex | 101 | $111,515 |
| JardianceEmpagliflozin | 94 | $78,840 |
| OzempicSemaglutide | 50 | $55,554 |
| MyrbetriqMirabegron | 89 | $39,062 |
| VascepaIcosapent Ethyl | 81 | $33,939 |
| VelphoroSucroferric Oxyhydroxide | 16 | $33,470 |
| TradjentaLinagliptin | 31 | $20,601 |
| JanuviaSitagliptin Phosphate | 16 | $19,568 |
| LinzessLinaclotide | 21 | $17,253 |
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 |
|---|---|---|
| AmgenKrystexxa | $51,847 | $1,387,20626 claims |
| AstraZenecaFarxiga, Lokelma | $4,036 | $419,398489 claims |
| Calliditas Therapeutics US Inc.Tarpeyo | $28,935 | $185,93811 claims |
| BayerKerendia | $1,085 | $173,144249 claims |
| Travere Therapeutics, Inc.Filspari | $764 | $128,33012 claims |
| Boehringer IngelheimJardiance, Tradjenta | $719 | $99,441125 claims |
| Novo NordiskOzempic | $734 | $55,55450 claims |
| Fresenius USA Marketing, Inc.Velphoro | $401 | $33,47016 claims |
| MerckJanuvia | $15 | $19,56816 claims |
| GSKBreo Ellipta | $22 | $4,58711 claims |
| ANI Pharmaceuticals, Inc.Valsartan | $807 | $94247 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 935 nephrology providers in New York.
Other nephrology in Bronx
- Robert LynnBronx$2M
- Bruce SpinowitzBronx$837K
- Matthew AbramowitzBronx$749K
- Enver AkalinBronx$312K
- Chang XuBronx$257K
- Joel NeugartenBronx$256K
- Chaim CharytanBronx$204K
- Gill FreiBronx$188K
- Joji TokitaNew York$8.4M
- Krzysztof KirylukNew York$6.7M
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.