Vifor (International) Ltd.
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Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
Centers for Medicare & Medicaid Services, Open Payments
These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.
Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.
CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state.
Page 1 of 1; records 1–29 of 29 matching records. This page contains 29 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.
IndustryPayments · General Payments
Vifor (International) Ltd.
CMS reporting company ID 100000081386
General Payments, PY2023; Recipient scope: All recipient types; Nature of payment: All payment types
Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00
Page 1 of 1; records 1–29 of 29 matching records. This page contains 29 records (maximum 50), not the full filtered export.
Filtered page: https://industrypayments.org/company/100000081386?year=2023&recipient=all#records-h
CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9
Cite these filtered records
The citation includes this program year, filters, data edition, and page of results.
- Plain
- Vifor (International) Ltd., CMS reporting company ID 100000081386. General Payments, PY2023; Recipient scope: All recipient types; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–29 of 29 matching records. This page contains 29 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/company/100000081386?year=2023&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
- APA 7
- IndustryPayments. (2026). Vifor (International) Ltd., CMS reporting company ID 100000081386. General Payments, PY2023; Recipient scope: All recipient types; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–29 of 29 matching records. This page contains 29 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/company/100000081386?year=2023&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
- Bluebook
- Vifor (International) Ltd., CMS reporting company ID 100000081386, IndustryPayments, General Payments, PY2023; Recipient scope: All recipient types; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 1; records 1–29 of 29 matching records. This page contains 29 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/company/100000081386?year=2023&recipient=all#records-h.
Centers for Medicare & Medicaid Services, Open Payments
Citation formats are provided for reference; check the requirements of your publication.
Payment records · PY2023
Date, newest first, then reporting company; values as published by CMS.
General Payments · PY2023 · All recipient types · CMS publication 2026-06-30
29 matching records · $156,483.12 reported total · 0 disputed
Nature of payment: All payment types
Records imported here (UTC).
Download all 29 matching records (CSV)
CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.
Showing records 1–29 of 29.
| Recipient | Paying entity | Amount | Date | Nature of payment | Dispute status | Publication flags | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|---|---|
| NADIA HENSLEY Physician / non-physician practitioner | Vifor (International) Ltd. | $3,878.00 | 12/18/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695637 | CMS |
| ARYEH SHANDER Physician / non-physician practitioner | Vifor (International) Ltd. | $2,901.00 | 11/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695647 | CMS |
| JAVED BUTLER Physician / non-physician practitioner | Vifor (International) Ltd. | $3,000.00 | 10/14/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1056060983 | CMS |
| STEPHEN JOHN GREENE Physician / non-physician practitioner | Vifor (International) Ltd. | $1,800.00 | 09/11/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695649 | CMS |
| STEPHEN JOHN GREENE Physician / non-physician practitioner | Vifor (International) Ltd. | $331.18 | 09/11/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695657 | CMS |
| STEPHEN JOHN GREENE Physician / non-physician practitioner | Vifor (International) Ltd. | $57.45 | 09/11/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695661 | CMS |
| KAMYAR ZADEH KALANTAR Physician / non-physician practitioner | Vifor (International) Ltd. | $2,800.00 | 09/02/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052902265 | CMS |
| JAVED BUTLER Physician / non-physician practitioner | Vifor (International) Ltd. | $1,350.00 | 07/31/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695625 | CMS |
| STEPHEN JOHN GREENE Physician / non-physician practitioner | Vifor (International) Ltd. | $1,800.00 | 07/31/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052784383 | CMS |
| SAGAR U NIGWEKAR Physician / non-physician practitioner | Vifor (International) Ltd. | $1,815.00 | 07/03/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695635 | CMS |
| MATTHEW R WEIR Physician / non-physician practitioner | Vifor (International) Ltd. | $9,600.00 | 05/01/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052965997 | CMS |
| ELLIE KELEPOURIS Physician / non-physician practitioner | Vifor (International) Ltd. | $2,475.00 | 03/20/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052830391 | CMS |
| ELLIE KELEPOURIS Physician / non-physician practitioner | Vifor (International) Ltd. | $55.00 | 03/20/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052843261 | CMS |
| NIHAR DESAI Physician / non-physician practitioner | Vifor (International) Ltd. | $1,575.00 | 03/20/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052843351 | CMS |
| NIHAR DESAI Physician / non-physician practitioner | Vifor (International) Ltd. | $414.89 | 03/20/2023 | Travel and Lodging | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052843567 | CMS |
| NIHAR DESAI Physician / non-physician practitioner | Vifor (International) Ltd. | $38.60 | 03/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052843647 | CMS |
| STEPHEN JOHN GREENE Physician / non-physician practitioner | Vifor (International) Ltd. | $1,350.00 | 03/06/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052773391 | CMS |
| Saint Lukes Hospital Of Kansas City Teaching hospital | Vifor (International) Ltd. | $14,983.70 | 03/06/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052800575 | CMS |
| JAVED BUTLER Physician / non-physician practitioner | Vifor (International) Ltd. | $39,000.00 | 02/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052845059 | CMS |
| BERTRAM PITT Physician / non-physician practitioner | Vifor (International) Ltd. | $39,000.00 | 02/20/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695621 | CMS |
| JAVED BUTLER Physician / non-physician practitioner | Vifor (International) Ltd. | $4,050.00 | 02/20/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695623 | CMS |
| BIYKEM BOZKURT Physician / non-physician practitioner | Vifor (International) Ltd. | $1,575.00 | 02/20/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695629 | CMS |
| JAVED BUTLER Physician / non-physician practitioner | Vifor (International) Ltd. | $2,500.00 | 02/17/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1056060981 | CMS |
| MATTHEW R WEIR Physician / non-physician practitioner | Vifor (International) Ltd. | $8,600.00 | 02/12/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052928643 | CMS |
| KAMYAR ZADEH KALANTAR Physician / non-physician practitioner | Vifor (International) Ltd. | $3,700.00 | 02/10/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052912994 | CMS |
| MATTHEW R WEIR Physician / non-physician practitioner | Vifor (International) Ltd. | $2,200.00 | 02/10/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052920775 | CMS |
| JAVED BUTLER Physician / non-physician practitioner | Vifor (International) Ltd. | $2,583.30 | 02/10/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1056060977 | CMS |
| TOMAS GANZ Physician / non-physician practitioner | Vifor (International) Ltd. | $2,400.00 | 01/16/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695631 | CMS |
| JAVED BUTLER Physician / non-physician practitioner | Vifor (International) Ltd. | $650.00 | 01/09/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1052695627 | CMS |
Practitioner overview · all loaded program years
77 providers listed 254 records General Payments
General Payments to practitioners — all loaded program years
- Category: General Payments
- Program years: 2019, 2020, 2021, 2022, 2023, 2024, 2025
- Record count: 254
- Providers listed: 77
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.
Coverage: program years 2019–2025, General Payments only, reported to physicians and non-physician practitioners. Payments to teaching hospitals are not included in these practitioner figures. Each figure is labeled with its category and program year; categories are never combined.
Practitioner payments by program year
| Program year | Reported | Records | Providers | Detail |
|---|---|---|---|---|
| PY2019 | $99,273.19 | 52 | 8 | This company in PY2019 → |
| PY2020 | $178,552.24 | 68 | 47 | This company in PY2020 → |
| PY2021 | $125,086.50 | 18 | 14 | This company in PY2021 → |
| PY2022 | $228,701.71 | 48 | 21 | This company in PY2022 → |
| PY2023 | $141,499.42 | 28 | 12 | This company in PY2023 → |
| PY2024 | $63,118.85 | 25 | 12 | This company in PY2024 → |
| PY2025 | $92,512.01 | 15 | 5 | This company in PY2025 → |
By recipient specialty (20)
Sorted by name; identical names by identifier.
Allopathic & Osteopathic Physicians 20 specialties 77 providers
- Anesthesiology 4
- Dermatology 3
- Emergency Medicine 1
- Hospitalist 1
- Internal Medicine 5
- Internal Medicine · Advanced Heart Failure and Transplant Cardiology 7
- Internal Medicine · Cardiovascular Disease 17
- Internal Medicine · Gastroenterology 1
- Internal Medicine · Hematology 2
- Internal Medicine · Hematology & Oncology 2
- Internal Medicine · Interventional Cardiology 2
- Internal Medicine · Nephrology 16
- Internal Medicine · Pulmonary Disease 1
- Internal Medicine · Rheumatology 3
- Obstetrics & Gynecology 2
- Pediatrics 3
- Pediatrics · Pediatric Cardiology 1
- Pediatrics · Pediatric Hematology-Oncology 2
- Pediatrics · Pediatric Nephrology 2
- Thoracic Surgery (Cardiothoracic Vascular Surgery) 2
Providers listed (77)
Sorted by name; identical names by identifier.
| Provider | Specialty | State | Records reported by this company |
|---|---|---|---|
| MICHAEL NASSIF | Allopathic & Osteopathic Physicians|Internal Medicine|Advanced Heart Failure and Transplant Cardiology | MO | 1 |
| MIKHAIL KOSIBOROD | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | MO | 4 |
| MONY FRAER | Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology | IA | 1 |
| MURRAY EPSTEIN | Allopathic & Osteopathic Physicians|Hospitalist | FL | 2 |
| NADIA HENSLEY | Allopathic & Osteopathic Physicians|Anesthesiology | MD | 1 |
| NIHAR DESAI | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | CT | 10 |
| NORMAN D JAFFE | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | NY | 1 |
| OSWALDO CASTRO | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology | DC | 4 |
| PIERRE R TIBI | Allopathic & Osteopathic Physicians|Thoracic Surgery (Cardiothoracic Vascular Surgery) | AZ | 1 |
| PRASHANT VAISHNAVA | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | NY | 1 |
| RICHARD GRALLA | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | NY | 3 |
| ROBERT J MENTZ | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | NC | 1 |
| ROXANA GHASHGHAEI | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | CA | 1 |
| SAEID NOSRATI | Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology | CA | 1 |
| SAGAR U NIGWEKAR | Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology | MA | 1 |
| SANJAY SETHI | Allopathic & Osteopathic Physicians|Internal Medicine | NY | 1 |
| SANTANU BISWAS | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | WA | 1 |
| SHALINE RAO | Allopathic & Osteopathic Physicians|Internal Medicine|Advanced Heart Failure and Transplant Cardiology | DC | 2 |
| SHAYAN SHIRAZIAN | Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology | NY | 1 |
| STEPHEN JOHN GREENE | Allopathic & Osteopathic Physicians|Internal Medicine|Advanced Heart Failure and Transplant Cardiology | NC | 14 |
| THOMAS D COATES | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Hematology-Oncology | CA | 4 |
| TIMOTHY GEORGE | Allopathic & Osteopathic Physicians|Thoracic Surgery (Cardiothoracic Vascular Surgery) | TX | 1 |
| TOMAS GANZ | Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease | CA | 6 |
| TYLER JUSTIN GLUCKMAN | Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease | OR | 1 |
| VICTOR R GORDEUK | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | IL | 2 |
| VIKAS DHARNIDHARKA | Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Nephrology | NJ | 1 |
| WILLIAM CHARLES COLE CLAIBORNE | Allopathic & Osteopathic Physicians|Dermatology | LA | 1 |