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 · PY2024

Date, newest first, then reporting company; values as published by CMS.

General Payments · PY2024 · All recipient types · CMS publication 2026-06-30

430 matching records · $95,684.79 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 430 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 430.

Recipient Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
CECELIA KOETTING
Physician / non-physician practitioner
ImmunoGen, Inc. $41.9602/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941629 CMS
PORAS KAMLESH PATEL
Physician / non-physician practitioner
ImmunoGen, Inc. $21.9502/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941747 CMS
MAX FREDERICK BERGSTROM
Physician / non-physician practitioner
ImmunoGen, Inc. $21.9502/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941977 CMS
GERARD N LOZADA
Physician / non-physician practitioner
ImmunoGen, Inc. $76.6102/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941681 CMS
CYNTHIA L MARTEL
Physician / non-physician practitioner
ImmunoGen, Inc. $23.7802/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941685 CMS
CRYSTAL DAWN REMINGTON
Physician / non-physician practitioner
ImmunoGen, Inc. $76.6102/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941697 CMS
JOSSELYN G MOLINA AVILA
Physician / non-physician practitioner
ImmunoGen, Inc. $22.8302/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941709 CMS
LAURA J NENNIG
Physician / non-physician practitioner
ImmunoGen, Inc. $76.6102/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941719 CMS
MEREDITH J SELLECK
Physician / non-physician practitioner
ImmunoGen, Inc. $86.6202/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941809 CMS
ALYSSA BAILY SHERWOOD
Physician / non-physician practitioner
ImmunoGen, Inc. $76.6102/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941833 CMS
HUZEFA F BAHRAIN
Physician / non-physician practitioner
ImmunoGen, Inc. $26.1002/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941377 CMS
NADIM LOUIS BOU ZGHEIB
Physician / non-physician practitioner
ImmunoGen, Inc. $25.8302/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941401 CMS
THAD R DENEHY
Physician / non-physician practitioner
ImmunoGen, Inc. $13.8102/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941463 CMS
MARK PHILIP DIAMOND
Physician / non-physician practitioner
ImmunoGen, Inc. $26.1002/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941471 CMS
ERIC C LIBERMAN
Physician / non-physician practitioner
ImmunoGen, Inc. $13.8102/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941671 CMS
JANET OSBORNE
Physician / non-physician practitioner
ImmunoGen, Inc. $23.2002/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941735 CMS
ERIN J SAKS
Physician / non-physician practitioner
ImmunoGen, Inc. $23.2002/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941793 CMS
LUIS J SANTOS REYES
Physician / non-physician practitioner
ImmunoGen, Inc. $18.3702/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941797 CMS
PEDRO GIL G SOLIVAN ORTIZ
Physician / non-physician practitioner
ImmunoGen, Inc. $19.2602/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941847 CMS
LINDSAY R BIAS
Physician / non-physician practitioner
ImmunoGen, Inc. $25.8302/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941985 CMS
MARISA BUONANNO-HAMRAH
Physician / non-physician practitioner
ImmunoGen, Inc. $13.8102/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941991 CMS
LAURA ANN DAVIS
Physician / non-physician practitioner
ImmunoGen, Inc. $13.4002/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099942015 CMS
ANNELISE CLAERR GAUTHIER
Physician / non-physician practitioner
ImmunoGen, Inc. $64.6502/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099942057 CMS
DEBORAH GREENGRASS
Physician / non-physician practitioner
ImmunoGen, Inc. $13.8102/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099942067 CMS
STEPHANIE HORROCKS
Physician / non-physician practitioner
ImmunoGen, Inc. $26.1002/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099942093 CMS
SAPHINA N WILLIAMS
Physician / non-physician practitioner
ImmunoGen, Inc. $27.5602/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099942195 CMS
JAFFAR HILLI
Physician / non-physician practitioner
ImmunoGen, Inc. $20.5702/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941351 CMS
ZONERA ASHRAF ALI
Physician / non-physician practitioner
ImmunoGen, Inc. $29.9602/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941357 CMS
MOHSEN S ARANI
Physician / non-physician practitioner
ImmunoGen, Inc. $27.3702/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941363 CMS
FIKRET I ATAMDEDE
Physician / non-physician practitioner
ImmunoGen, Inc. $28.1402/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941369 CMS
BRETT ROBERT BARLOW
Physician / non-physician practitioner
ImmunoGen, Inc. $21.3302/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941383 CMS
SUSANA CAMPOS
Physician / non-physician practitioner
ImmunoGen, Inc. $700.0002/07/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941417 CMS
SCOTT KENDAL DESSAIN
Physician / non-physician practitioner
ImmunoGen, Inc. $29.9602/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941467 CMS
OLIVER DORIGO
Physician / non-physician practitioner
ImmunoGen, Inc. $700.0002/07/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941479 CMS
MEGAN INDERMAUR
Physician / non-physician practitioner
ImmunoGen, Inc. $133.8802/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941589 CMS
JESSICA A KENNARD
Physician / non-physician practitioner
ImmunoGen, Inc. $121.4002/07/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941611 CMS
JESSICA A KENNARD
Physician / non-physician practitioner
ImmunoGen, Inc. $133.8802/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941613 CMS
MOHAMAD KHAIR KHASAWNEH
Physician / non-physician practitioner
ImmunoGen, Inc. $600.0002/07/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941619 CMS
VLADIMIR D LIMONNIK
Physician / non-physician practitioner
ImmunoGen, Inc. $29.9602/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941673 CMS
MICAEL LOPEZ-ACEVEDO
Physician / non-physician practitioner
ImmunoGen, Inc. $3,854.0002/07/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941677 CMS
MICAEL LOPEZ-ACEVEDO
Physician / non-physician practitioner
ImmunoGen, Inc. $109.3102/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941679 CMS
CAROLINE ANNETTE RIVERA OLOMO
Physician / non-physician practitioner
ImmunoGen, Inc. $109.3102/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941785 CMS
DERIC SAVIOR
Physician / non-physician practitioner
ImmunoGen, Inc. $29.9602/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941801 CMS
SHELLY MARIE SEWARD
Physician / non-physician practitioner
ImmunoGen, Inc. $133.8802/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941817 CMS
SHELLY MARIE SEWARD
Physician / non-physician practitioner
ImmunoGen, Inc. $3,257.0002/07/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941819 CMS
KARTHIK SHANKAR
Physician / non-physician practitioner
ImmunoGen, Inc. $29.9602/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941825 CMS
AARTI SHEVADE
Physician / non-physician practitioner
ImmunoGen, Inc. $29.9602/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941835 CMS
RICKY TONG
Physician / non-physician practitioner
ImmunoGen, Inc. $29.9602/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941875 CMS
TIFFANY A TROSO-SANDOVAL
Physician / non-physician practitioner
ImmunoGen, Inc. $700.0002/07/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941877 CMS
VICTOR VAZQUEZ
Physician / non-physician practitioner
ImmunoGen, Inc. $109.3102/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261099941895 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 yearReportedRecordsProvidersDetail
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
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

Providers listed (1,930)

Sorted by name; identical names by identifier.

ProviderSpecialtyStateRecords 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