Healthcare provider profile · identity verified

Ashis Kumar Chakrabarti, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · TERRE HAUTE, IN · NPI 1912953001

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Ashis Kumar Chakrabarti, M.D. received $2,551.42 in general payments during 2025 across 128 reported records.

SEAGEN INC. accounted for 11.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 60 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Brukinsa, Eliquis, Imbruvica, Jakafi.

ABBVIE INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported IMBRUVICA as an associated drug or biological on 15599 records involving 6881 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Imbruvica by this doctor in 2024.

BeOne Medicines USA, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BRUKINSA as an associated drug or biological on 10251 records involving 4941 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Brukinsa by this doctor in 2024.

Celgene Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 25 records involving 24 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Eliquis by this doctor in 2024.

Celgene Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported POMALYST as an associated drug or biological on 282 records involving 237 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Pomalyst by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Eliquis by this doctor in 2024.

Incyte Corporation reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JAKAFI as an associated drug or biological on 14854 records involving 6477 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Jakafi by this doctor in 2024.

Janssen Biotech, Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported IMBRUVICA as an associated drug or biological on 47 records involving 33 distinct recipient NPIs. Public Medicare Part D data also shows 18 claims for Imbruvica by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Eliquis by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$2,551.42

128 reported records · 36 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
SEAGEN INC. Unresolved — no canonical attribution shown $291.9411.4%32025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $275.9110.8%152025
PFIZER INC. Unresolved — no canonical attribution shown $206.058.1%162025
Incyte Corporation Unresolved — no canonical attribution shown $197.307.7%72025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $167.756.6%112025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $141.155.5%102025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $138.205.4%72025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $111.264.4%52025
ABBVIE INC. Unresolved — no canonical attribution shown $103.374.0%62025
Exelixis Inc. Unresolved — no canonical attribution shown $100.253.9%42025
Eisai Inc. Unresolved — no canonical attribution shown $90.943.6%42025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $81.743.2%42025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $55.732.2%32025
Legend Biotech USA Inc. Unresolved — no canonical attribution shown $54.552.1%32025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $51.362.0%32025
Adaptive Biotechnologies Corporation Unresolved — no canonical attribution shown $50.502.0%22025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $47.351.9%32025
Aveo Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $36.621.4%22025
Celgene Corporation Unresolved — no canonical attribution shown $31.241.2%22025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $29.351.1%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $23.630.9%12025
Geron Corporation Unresolved — no canonical attribution shown $23.480.9%12025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $23.370.9%12025
Pharmacosmos Therapeutics Inc. Unresolved — no canonical attribution shown $19.670.8%12025
SOBI, INC Unresolved — no canonical attribution shown $18.870.7%12025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $18.220.7%12025
Syndax Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $17.480.7%12025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $17.450.7%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $17.260.7%12025
ACCORD HEALTHCARE, INC. Unresolved — no canonical attribution shown $17.220.7%12025
GENZYME CORPORATION Unresolved — no canonical attribution shown $16.980.7%12025
Genmab U.S., Inc. Unresolved — no canonical attribution shown $15.620.6%12025
Azurity Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $15.590.6%12025
Genentech USA, Inc. Unresolved — no canonical attribution shown $14.890.6%12025
Amgen Inc. Unresolved — no canonical attribution shown $14.870.6%12025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $14.260.6%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,150.50123
Education$400.925

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $275.91 15 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological, Drug AstraZeneca Pharmaceuticals LP, Merck Sharp & Dohme LLC $132.75 7 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $111.26 5 2025
Source payment records
WELIREG
Normalized: welireg
Drug Merck Sharp & Dohme LLC $110.75 6 2025
Source payment records
REBLOZYL
Normalized: reblozyl
Biological Celgene Corporation, Merck Sharp & Dohme LLC $106.81 6 2025
Source payment records
CABOMETYX
Normalized: cabometyx
Drug Exelixis Inc. $100.25 4 2025
Source payment records
PADCEV
Normalized: padcev
Biological, Drug Astellas Pharma US Inc, PFIZER INC. $98.32 10 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $90.94 4 2025
Source payment records
KISQALI
Normalized: kisqali
Drug Novartis Pharmaceuticals Corporation $69.84 5 2025
Source payment records
MONJUVI
Normalized: monjuvi
Drug Incyte Corporation $65.80 4 2025
Source payment records
TECVAYLI
Normalized: tecvayli
Biological Janssen Biotech, Inc. $64.60 5 2025
Source payment records
FRUZAQLA
Normalized: fruzaqla
Drug Takeda Pharmaceuticals U.S.A., Inc. $64.40 3 2025
Source payment records
ELIQUIS
Normalized: eliquis
Drug PFIZER INC. $55.83 3 2025
Source payment records
OPDIVO
Normalized: opdivo
Biological E.R. Squibb & Sons, L.L.C. $55.73 3 2025
Source payment records
CARVYKTI
Normalized: carvykti
Biological Legend Biotech USA Inc. $54.55 3 2025
Source payment records
SCEMBLIX
Normalized: scemblix
Drug Novartis Pharmaceuticals Corporation $52.93 4 2025
Source payment records
BRUKINSA
Normalized: brukinsa
Drug BeOne Medicines USA, Inc. $51.36 3 2025
Source payment records
EPKINLY
Normalized: epkinly
Drug ABBVIE INC., Genmab U.S., Inc. $51.27 3 2025
Source payment records
clonoSEQ
Normalized: clonoseq
Device Adaptive Biotechnologies Corporation $50.50 2 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $47.35 3 2025
Source payment records
MEKTOVI
Normalized: mektovi
Drug ARRAY BIOPHARMA INC $47.35 3 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $46.08 3 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Biotech, Inc. $43.05 3 2025
Source payment records
ADCETRIS
Normalized: adcetris
Biological PFIZER INC. $40.27 2 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $40.27 2 2025
Source payment records
JAKAFI
Normalized: jakafi
Drug Incyte Corporation $38.51 2 2025
Source payment records
FOTIVDA
Normalized: fotivda
Drug Aveo Pharmaceuticals, Inc. $36.62 2 2025
Source payment records
VENCLEXTA
Normalized: venclexta
Biological, Drug ABBVIE INC., Genentech USA, Inc. $36.53 2 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $36.30 2 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $35.65 2 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $33.96 2 2025
Source payment records
TALVEY
Normalized: talvey
Biological Janssen Biotech, Inc. $33.96 2 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug ARRAY BIOPHARMA INC, PFIZER INC. $31.01 2 2025
Source payment records
INLYTA
Normalized: inlyta
Drug PFIZER INC. $26.92 4 2025
Source payment records
ERLEADA
Normalized: erleada
Drug Janssen Biotech, Inc. $26.14 1 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug PFIZER INC. $24.87 2 2025
Source payment records
TALZENNA
Normalized: talzenna
Drug PFIZER INC. $24.87 2 2025
Source payment records
XTANDI
Normalized: xtandi
Drug PFIZER INC. $24.87 2 2025
Source payment records
RYTELO
Normalized: rytelo
Drug Geron Corporation $23.48 1 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $23.37 1 2025
Source payment records
ENHERTU
Normalized: enhertu
Biological AstraZeneca Pharmaceuticals LP $20.26 1 2025
Source payment records
MONOFERRIC
Normalized: monoferric
Drug Pharmacosmos Therapeutics Inc. $19.67 1 2025
Source payment records
Doptelet
Normalized: doptelet
Drug SOBI, INC $18.87 1 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $18.38 1 2025
Source payment records
ZEPZELCA
Normalized: zepzelca
Drug JAZZ PHARMACEUTICALS INC. $18.22 1 2025
Source payment records
LORBRENA
Normalized: lorbrena
Drug ARRAY BIOPHARMA INC $17.84 1 2025
Source payment records
XALKORI
Normalized: xalkori
Drug ARRAY BIOPHARMA INC $17.84 1 2025
Source payment records
REVUFORJ
Normalized: revuforj
Drug Syndax Pharmaceuticals, Inc. $17.48 1 2025
Source payment records
Onivyde
Normalized: onivyde
Drug Ipsen Biopharmaceuticals, Inc $17.45 1 2025
Source payment records
Somatuline Depot
Normalized: somatuline depot
Drug Ipsen Biopharmaceuticals, Inc $17.45 1 2025
Source payment records
NINLARO
Normalized: ninlaro
Drug Takeda Pharmaceuticals U.S.A., Inc. $17.34 1 2025
Source payment records
JEMPERLI
Normalized: jemperli
Biological GlaxoSmithKline, LLC. $17.26 1 2025
Source payment records
ZEJULA
Normalized: zejula
Drug GlaxoSmithKline, LLC. $17.26 1 2025
Source payment records
Camcevi
Normalized: camcevi
Drug ACCORD HEALTHCARE, INC. $17.22 1 2025
Source payment records
CALQUENCE
Normalized: calquence
Drug AstraZeneca Pharmaceuticals LP $17.17 1 2025
Source payment records
SARCLISA
Normalized: sarclisa
Biological GENZYME CORPORATION $16.98 1 2025
Source payment records
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $16.11 1 2025
Source payment records
VIVIMUSTA
Normalized: vivimusta
Drug Azurity Pharmaceuticals, Inc. $15.59 1 2025
Source payment records
KYPROLIS
Normalized: kyprolis
Drug Amgen Inc. $14.87 1 2025
Source payment records
LIBTAYO
Normalized: libtayo
Biological Regeneron Healthcare Solutions, Inc. $14.26 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
BRUKINSA
brukinsa
2025 Brukinsa 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
ELIQUIS
eliquis
2025 Eliquis 2024 17
Beneficiary count suppressed
exact normalized Medicare Part D
IMBRUVICA
imbruvica
2025 Imbruvica 2024 18
Beneficiary count suppressed
exact normalized Medicare Part D
JAKAFI
jakafi
2025 Jakafi 2024 20
Beneficiary count suppressed
exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 IMBRUVICA
open payments reported associated product
CMS Open Payments — General Payments
15599 supporting records · 6881 recipient NPIs · example record 1201352838
Imbruvica · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
BeOne Medicines USA, Inc.
Exact reporting entity; no affiliate inference
2025 BRUKINSA
open payments reported associated product
CMS Open Payments — General Payments
10251 supporting records · 4941 recipient NPIs · example record 1202883638
Brukinsa · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Celgene Corporation
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
25 supporting records · 24 recipient NPIs · example record 1184385048
Eliquis · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS
Celgene Corporation
Exact reporting entity; no affiliate inference
2025 POMALYST
open payments reported associated product
CMS Open Payments — General Payments
282 supporting records · 237 recipient NPIs · example record 1184378437
Pomalyst · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS
Incyte Corporation
Exact reporting entity; no affiliate inference
2025 JAKAFI
open payments reported associated product
CMS Open Payments — General Payments
14854 supporting records · 6477 recipient NPIs · example record 1225959940
Jakafi · 2024
Exact normalized brand match · 1 Part D row
20 suppressed by CMS
Janssen Biotech, Inc.
Exact reporting entity; no affiliate inference
2025 IMBRUVICA
open payments reported associated product
CMS Open Payments — General Payments
47 supporting records · 33 recipient NPIs · example record 1174328453
Imbruvica · 2024
Exact normalized brand match · 1 Part D row
18 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Warfarin SodiumWarfarin Sodium10113
AnastrozoleAnastrozole8821
Levothyroxine SodiumLevothyroxine Sodium7416
PrednisonePrednisone5824
Prochlorperazine MaleateProchlorperazine Maleate5532
Potassium ChloridePotassium Chloride5317
HydroxyureaHydroxyurea38suppressed
AcyclovirAcyclovir36suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen33suppressed
GabapentinGabapentin32suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3112
Morphine Sulfate ErMorphine Sulfate26suppressed
Amlodipine BesylateAmlodipine Besylate25suppressed
JakafiRuxolitinib Phosphate20suppressed
ImbruvicaIbrutinib18suppressed
LisinoprilLisinopril18suppressed
LorazepamLorazepam18suppressed
EliquisApixaban17suppressed
OmeprazoleOmeprazole16suppressed
Ondansetron HclOndansetron Hcl15suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim15suppressed
Duloxetine HclDuloxetine Hcl14suppressed
ExemestaneExemestane14suppressed
PomalystPomalidomide14suppressed
BrukinsaZanubrutinib12suppressed
JantovenWarfarin Sodium12suppressed
Ondansetron OdtOndansetron12suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $2,551.42 · 128 records SEAGEN INC. ADCETRIS, BRAFTOVI, BRUKINSA, CABOMETYX, CALQUENCE, CARVYKTI, CREON, Camcevi, DARZALEX, Doptelet, ELIQUIS, ELREXFIO, ENHERTU, EPKINLY, ERLEADA, FOTIVDA, FRUZAQLA, Fabhalta, IBRANCE, IMBRUVICA, INLYTA, JAKAFI, JEMPERLI, KEYTRUDA, KEYTRUDA QLEX, KISQALI, KYPROLIS, LIBTAYO, LORBRENA, LYNPARZA, Lenvima, MEKTOVI, MONJUVI, MONOFERRIC, NINLARO, OPDIVO, ORGOVYX, Onivyde, PADCEV, REBLOZYL, REVUFORJ, RYBREVANT, RYTELO, SARCLISA, SCEMBLIX, Somatuline Depot, TALVEY, TALZENNA, TECVAYLI, TUKYSA, Trodelvy, ULTOMIRIS, VENCLEXTA, VIVIMUSTA, WELIREG, XALKORI, XTANDI, ZEJULA, ZEPZELCA, clonoSEQ 8
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error