ImmunoGen, Inc.
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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.
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
2,921 matching records · $1,238,149.39 reported total · 0 disputed
Nature of payment: All payment types
Records imported here (UTC).
Download all 2,921 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 1–50 of 2,921.
| Recipient | Paying entity | Amount | Date | Nature of payment | Dispute status | Publication flags | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|---|---|
| FEN JIANG Physician / non-physician practitioner | ImmunoGen, Inc. | $29.26 | 12/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017248125 | CMS |
| MEGAN MCKEE Physician / non-physician practitioner | ImmunoGen, Inc. | $20.56 | 12/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250647 | CMS |
| SAKEER HUSSAIN Physician / non-physician practitioner | ImmunoGen, Inc. | $24.15 | 12/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252269 | CMS |
| JOY BROYLES Physician / non-physician practitioner | ImmunoGen, Inc. | $20.56 | 12/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017255305 | CMS |
| THERESA EVANS Physician / non-physician practitioner | ImmunoGen, Inc. | $24.15 | 12/28/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017257299 | CMS |
| GREGORY W SMITH Physician / non-physician practitioner | ImmunoGen, Inc. | $5,861.37 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017248391 | CMS |
| HOWARD MITCHELL GOODMAN Physician / non-physician practitioner | ImmunoGen, Inc. | $27.76 | 12/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017248737 | CMS |
| KALYAN BANDA Physician / non-physician practitioner | ImmunoGen, Inc. | $8,248.00 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017249421 | CMS |
| KRISTEN KELLEY Physician / non-physician practitioner | ImmunoGen, Inc. | $6,901.89 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017249777 | CMS |
| MAMTA TARAK CHOKSI Physician / non-physician practitioner | ImmunoGen, Inc. | $7,176.00 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250363 | CMS |
| MARK GEORGE CARMICHAEL Physician / non-physician practitioner | ImmunoGen, Inc. | $28.54 | 12/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250587 | CMS |
| MOHAMAD KHAIR KHASAWNEH Physician / non-physician practitioner | ImmunoGen, Inc. | $6,211.84 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250905 | CMS |
| MOHAMMAD M CHISTI Physician / non-physician practitioner | ImmunoGen, Inc. | $5,870.00 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250921 | CMS |
| PANAYOTIS LEDAKIS Physician / non-physician practitioner | ImmunoGen, Inc. | $6,800.00 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017251359 | CMS |
| TARA BERMAN Physician / non-physician practitioner | ImmunoGen, Inc. | $8,219.45 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252945 | CMS |
| TIFFANY A TROSO-SANDOVAL Physician / non-physician practitioner | ImmunoGen, Inc. | $8,239.10 | 12/27/2023 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017253155 | CMS |
| ANETTE P MCGOWAN Physician / non-physician practitioner | ImmunoGen, Inc. | $28.54 | 12/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017253841 | CMS |
| JESSICA RODRIGUEZ CRUZ Physician / non-physician practitioner | ImmunoGen, Inc. | $27.76 | 12/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017255215 | CMS |
| MICHELE INNOCENT Physician / non-physician practitioner | ImmunoGen, Inc. | $27.76 | 12/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017256295 | CMS |
| SARAH FLEMING Physician / non-physician practitioner | ImmunoGen, Inc. | $27.76 | 12/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017257003 | CMS |
| SHERI J WYSOCKI Physician / non-physician practitioner | ImmunoGen, Inc. | $28.54 | 12/27/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017257111 | CMS |
| NATHANIEL L JONES Physician / non-physician practitioner | ImmunoGen, Inc. | $16.80 | 12/26/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017251075 | CMS |
| ROBIN A LACOUR Physician / non-physician practitioner | ImmunoGen, Inc. | $24.91 | 12/26/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252071 | CMS |
| WILLIAM HIXSON Physician / non-physician practitioner | ImmunoGen, Inc. | $16.80 | 12/26/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017253467 | CMS |
| EMILY D CORNELIUS Physician / non-physician practitioner | ImmunoGen, Inc. | $16.80 | 12/26/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017254741 | CMS |
| KRISTINA TRAIL Physician / non-physician practitioner | ImmunoGen, Inc. | $16.80 | 12/26/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017255759 | CMS |
| NICOLE ANN PABLO Physician / non-physician practitioner | ImmunoGen, Inc. | $21.09 | 12/26/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017256473 | CMS |
| RAPHAEL CHARLES BOSSE Physician / non-physician practitioner | ImmunoGen, Inc. | $16.08 | 12/22/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017251655 | CMS |
| RONALD TANG Physician / non-physician practitioner | ImmunoGen, Inc. | $26.53 | 12/22/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252137 | CMS |
| LILIANA BUSTAMANTE Physician / non-physician practitioner | ImmunoGen, Inc. | $17.99 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250071 | CMS |
| LOWELL L HART Physician / non-physician practitioner | ImmunoGen, Inc. | $17.99 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250183 | CMS |
| MARK EDMUND THOMPSON Physician / non-physician practitioner | ImmunoGen, Inc. | $20.30 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017250579 | CMS |
| SAM S HUANG Physician / non-physician practitioner | ImmunoGen, Inc. | $23.39 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252281 | CMS |
| TARIQ MAHMOOD Physician / non-physician practitioner | ImmunoGen, Inc. | $23.39 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252969 | CMS |
| VERNON P MONTOYA Physician / non-physician practitioner | ImmunoGen, Inc. | $20.30 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017253317 | CMS |
| XINYU NAN Physician / non-physician practitioner | ImmunoGen, Inc. | $23.39 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017253515 | CMS |
| MARY L MOLLOY Physician / non-physician practitioner | ImmunoGen, Inc. | $17.99 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017256179 | CMS |
| SHEILA Y ROBERTS Physician / non-physician practitioner | ImmunoGen, Inc. | $20.30 | 12/21/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017257095 | CMS |
| EDWARD C GRENDYS Physician / non-physician practitioner | ImmunoGen, Inc. | $23.32 | 12/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017247749 | CMS |
| KELLY E DYLIK Physician / non-physician practitioner | ImmunoGen, Inc. | $23.32 | 12/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017249681 | CMS |
| SAMITH SANDADI Physician / non-physician practitioner | ImmunoGen, Inc. | $23.32 | 12/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252325 | CMS |
| SUNILKUMAR K KAKADIA Physician / non-physician practitioner | ImmunoGen, Inc. | $23.92 | 12/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017252869 | CMS |
| CHRISTINA D CLARK Physician / non-physician practitioner | ImmunoGen, Inc. | $23.32 | 12/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017254343 | CMS |
| SARAH MCCAIN TUCKER Physician / non-physician practitioner | ImmunoGen, Inc. | $23.32 | 12/20/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017257019 | CMS |
| CHARIS DURHAM Physician / non-physician practitioner | ImmunoGen, Inc. | $26.07 | 12/19/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017246851 | CMS |
| EDGAR CASTILLO DANDREIS Physician / non-physician practitioner | ImmunoGen, Inc. | $25.71 | 12/19/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017247673 | CMS |
| ERIN E FLEENER Physician / non-physician practitioner | ImmunoGen, Inc. | $26.07 | 12/19/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017248073 | CMS |
| HEIDI E GODOY Physician / non-physician practitioner | ImmunoGen, Inc. | $41.40 | 12/19/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017248613 | CMS |
| HOWARD ADLER Physician / non-physician practitioner | ImmunoGen, Inc. | $25.71 | 12/19/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017248733 | CMS |
| JACK H FREIMANN Physician / non-physician practitioner | ImmunoGen, Inc. | $24.75 | 12/19/2023 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 1017248845 | CMS |
Practitioner overview · all loaded program years
1,930 providers listed 3,344 records General Payments
General Payments to practitioners — all loaded program years
- Category: General Payments
- Program years: 2023, 2024
- Record count: 3,344
- Providers listed: 1,930
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 |
|---|---|---|---|---|
| PY2023 | $1,213,399.39 | 2,914 | 1,726 | This company in PY2023 → |
| PY2024 | $95,684.79 | 430 | 384 | This company in PY2024 → |
By recipient specialty (55)
Sorted by name; identical names by identifier.
Allopathic & Osteopathic Physicians 35 specialties 1,130 providers
- Anesthesiology 1
- Colon & Rectal Surgery 2
- Emergency Medicine 1
- Family Medicine 4
- Hospitalist 3
- Internal Medicine 32
- Internal Medicine · Cardiovascular Disease 1
- Internal Medicine · Gastroenterology 1
- Internal Medicine · Hematology 13
- Internal Medicine · Hematology & Oncology 503
- Internal Medicine · Medical Oncology 149
- Internal Medicine · Pulmonary Disease 2
- Obstetrics & Gynecology 53
- Obstetrics & Gynecology · Gynecologic Oncology 282
- Obstetrics & Gynecology · Gynecology 5
- Obstetrics & Gynecology · Urogynecology and Reconstructive Pelvic Surgery 2
- Ophthalmology 10
- Ophthalmology · Cornea and External Diseases Specialist 5
- Ophthalmology · Retina Specialist 1
- Pathology · Anatomic Pathology 2
- Pathology · Anatomic Pathology & Clinical Pathology 2
- Pediatrics 2
- Pediatrics · Pediatric Hematology-Oncology 2
- Physical Medicine & Rehabilitation 1
- Psychiatry & Neurology · Neurology 1
- Psychiatry & Neurology · Psychiatry 2
- Radiology · Diagnostic Radiology 2
- Radiology · Diagnostic Ultrasound 1
- Radiology · Neuroradiology 1
- Radiology · Radiation Oncology 27
- Radiology · Therapeutic Radiology 3
- Radiology · Vascular & Interventional Radiology 2
- Surgery 5
- Surgery · Surgical Oncology 6
- Thoracic Surgery (Cardiothoracic Vascular Surgery) 1
Eye and Vision Services Providers 3 specialties 25 providers
Nursing Service Providers 1 specialty 2 providers
Physician Assistants & Advanced Practice Nursing Providers 16 specialties 742 providers
- Clinical Nurse Specialist · Acute Care 1
- Clinical Nurse Specialist · Adult Health 1
- Clinical Nurse Specialist · Neuroscience 1
- Clinical Nurse Specialist · Oncology 7
- Nurse Practitioner 192
- Nurse Practitioner · Acute Care 27
- Nurse Practitioner · Adult Health 48
- Nurse Practitioner · Family 206
- Nurse Practitioner · Gerontology 28
- Nurse Practitioner · Obstetrics & Gynecology 5
- Nurse Practitioner · Primary Care 8
- Nurse Practitioner · Psychiatric/Mental Health 3
- Nurse Practitioner · Women's Health 36
- Physician Assistant 132
- Physician Assistant · Medical 29
- Physician Assistant · Surgical 18
Providers listed (1,930)
Sorted by name; identical names by identifier.
| Provider | Specialty | State | Records reported by this company |
|---|---|---|---|
| AARON L ANDERSON | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | IA | 1 |
| AARON NIZAM | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology | TN | 8 |
| AARON T HENDERSON | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | FL | 1 |
| AARTI SHEVADE | Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology | PA | 1 |
| ABIGAIL LOVE STRIKE | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | PA | 1 |
| ABINAV BAWEJA | Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology | CA | 1 |
| ABRAHAM CHEONG | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | GA | 1 |
| ACHALA B DORAISWAMY | Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology | CA | 1 |
| ADAM C WALTER | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology | OH | 1 |
| ADAM HENRY KAUFMAN | Allopathic & Osteopathic Physicians|Ophthalmology | OH | 1 |
| ADARA RENAE STARR MANESS | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | NC | 2 |
| ADELINE A BOATIN | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology | MA | 1 |
| ADEWALE A FAWOLE | Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology | FL | 1 |
| ADNAN AHMED KHAN | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | CA | 2 |
| AHMADREZA MORADI | Allopathic & Osteopathic Physicians|Ophthalmology|Cornea and External Diseases Specialist | CA | 1 |
| AHMED MOHAMED GHANY | Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology | OH | 1 |
| AHMED NADEEM | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | RI | 1 |
| AHSAN U SHAH | Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology | FL | 1 |
| AIDA J LOPEZ | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | FL | 1 |
| AILEEN CHEN | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | NJ | 1 |
| AISHA R BROWNLEE | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | IL | 1 |
| AJAY SEHGAL | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | TX | 1 |
| AJIT MANIAM | — | CA | 1 |
| AKIA MONIQUE SMITH | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Women's Health | MN | 1 |
| ALAA A ELBENDARY | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology | KS | 2 |
| ALAN CARTMELL | — | CA | 1 |
| ALAN D LANGERAK | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | AZ | 1 |
| ALAN DOSIK | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | NY | 1 |
| ALAN JOSEPH RODNEY | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | TX | 1 |
| ALAN K MUNOZ | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology | TX | 1 |
| ALAN LOCKWOOD | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care | OH | 1 |
| ALAN VIRGIL THOMAS | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | CA | 2 |
| ALBERTO BESSUDO | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | CA | 1 |
| ALBERTO MENDIVIL | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology | CA | 1 |
| ALDEN V CHIU | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | MD | 1 |
| ALESSANDRO D SANTIN | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology | CT | 1 |
| ALEX M GERDES | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner | IA | 1 |
| ALEXANDER B OLAWAIYE | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology | PA | 1 |
| ALEXANDER HANJOON SONG | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | CA | 2 |
| ALEXANDER LEE | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | CA | 2 |
| ALEXANDRA H SMICK | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology | OH | 1 |
| ALEXANDRA STAHL | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | NJ | 4 |
| ALEXANDRE M TUNGESVIK | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | MO | 1 |
| ALEXIS W O'HARA | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care | NY | 1 |
| ALEXUS M BLACK | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family | FL | 1 |
| ALFRED M KALMAN | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | FL | 1 |
| ALFRED S GUIRGUIS | Allopathic & Osteopathic Physicians|Obstetrics & Gynecology|Gynecologic Oncology | IL | 1 |
| ALI MOHAMAD SAYED | Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology | GA | 1 |
| ALI ZAHIR | Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology | PA | 1 |
| ALICE M MCCURDY | Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant | CA | 2 |