Payment overview · 2025
General Payments
$1,573.80
65 reported records · 19 companies
Healthcare provider profile · identity verified
Isoken Koko, MD
Allopathic & Osteopathic Physicians|Internal Medicine · RIVER FOREST, IL · NPI 1265465728
Verified facts
What the public records show
CMS Open Payments records show Isoken Koko, MD received $1,573.80 in general payments during 2025 across 65 reported records.
SEAGEN INC. accounted for 12.6% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 36 associated products.
A separate comparison found the same explicitly named product in public Medicare Part D data: Calquence, Kisqali, Xtandi.
ARRAY BIOPHARMA 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 BOSULIF as an associated drug or biological on 11 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Bosulif by this doctor in 2024.
ARRAY BIOPHARMA 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 XTANDI as an associated drug or biological on 98 records involving 88 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Xtandi by this doctor in 2024.
Astellas Pharma US 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 Xtandi as an associated drug or biological on 11345 records involving 5418 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Xtandi by this doctor in 2024.
AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported CALQUENCE as an associated drug or biological on 8404 records involving 3935 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Calquence 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 113 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 27 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 113 claims for Eliquis 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 XARELTO as an associated drug or biological on 24 records involving 23 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Xarelto by this doctor in 2024.
Merck Sharp & Dohme LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported LENVIMA as an associated drug or biological on 66 records involving 58 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Lenvima by this doctor in 2024.
Novartis Pharmaceuticals 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 KISQALI as an associated drug or biological on 31637 records involving 7959 distinct recipient NPIs. Public Medicare Part D data also shows 16 claims for Kisqali 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 BOSULIF as an associated drug or biological on 3017 records involving 2109 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Bosulif 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 113 claims for Eliquis 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 XTANDI as an associated drug or biological on 19368 records involving 7657 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Xtandi by this doctor in 2024.
These records do not establish that a payment influenced prescribing or medical care.
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 company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| SEAGEN INC. | Unresolved — no canonical attribution shown | $198.99 | 12.6% | 2 | 2025 |
| Daiichi Sankyo Inc. | Unresolved — no canonical attribution shown | $159.39 | 10.1% | 10 | 2025 |
| ABBVIE INC. | Unresolved — no canonical attribution shown | $151.46 | 9.6% | 8 | 2025 |
| Novartis Pharmaceuticals Corporation | Unresolved — no canonical attribution shown | $144.53 | 9.2% | 6 | 2025 |
| Janssen Biotech, Inc. | Unresolved — no canonical attribution shown | $137.04 | 8.7% | 2 | 2025 |
| PFIZER INC. | Unresolved — no canonical attribution shown | $125.22 | 8.0% | 8 | 2025 |
| Merck Sharp & Dohme LLC | Unresolved — no canonical attribution shown | $109.71 | 7.0% | 5 | 2025 |
| Gilead Sciences, Inc. | Unresolved — no canonical attribution shown | $104.19 | 6.6% | 5 | 2025 |
| AstraZeneca Pharmaceuticals LP | Unresolved — no canonical attribution shown | $99.61 | 6.3% | 4 | 2025 |
| ARRAY BIOPHARMA INC | Unresolved — no canonical attribution shown | $80.20 | 5.1% | 4 | 2025 |
| TerSera Therapeutics LLC | Unresolved — no canonical attribution shown | $56.19 | 3.6% | 2 | 2025 |
| Celgene Corporation | Unresolved — no canonical attribution shown | $40.81 | 2.6% | 2 | 2025 |
| Azurity Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $28.00 | 1.8% | 1 | 2025 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | Unresolved — no canonical attribution shown | $26.30 | 1.7% | 1 | 2025 |
| Karyopharm Therapeutics Inc. | Unresolved — no canonical attribution shown | $25.95 | 1.6% | 1 | 2025 |
| GlaxoSmithKline, LLC. | Unresolved — no canonical attribution shown | $25.09 | 1.6% | 1 | 2025 |
| Ipsen Biopharmaceuticals, Inc | Unresolved — no canonical attribution shown | $24.80 | 1.6% | 1 | 2025 |
| Astellas Pharma US Inc | Unresolved — no canonical attribution shown | $19.64 | 1.2% | 1 | 2025 |
| E.R. Squibb & Sons, L.L.C. | Unresolved — no canonical attribution shown | $16.68 | 1.1% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $1,362.39 | 62 |
| Education | $211.41 | 3 |
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 product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| CARVYKTI Normalized: carvykti |
Drug | Janssen Biotech, Inc. | $111.79 | 1 | 2025 |
Source payment records
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| RYBREVANT Normalized: rybrevant |
Drug | Janssen Biotech, Inc. | $111.79 | 1 | 2025 |
Source payment records
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| KEYTRUDA Normalized: keytruda |
Biological | Merck Sharp & Dohme LLC | $109.71 | 5 | 2025 |
Source payment records
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| Enhertu Normalized: enhertu |
Drug | Daiichi Sankyo Inc. | $107.01 | 7 | 2025 |
Source payment records
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| Trodelvy Normalized: trodelvy |
Drug | Gilead Sciences, Inc. | $104.19 | 5 | 2025 |
Source payment records
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| EPKINLY Normalized: epkinly |
Drug | ABBVIE INC. | $74.74 | 3 | 2025 |
Source payment records
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| IMBRUVICA Normalized: imbruvica |
Drug | ABBVIE INC. | $74.74 | 3 | 2025 |
Source payment records
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| SCEMBLIX Normalized: scemblix |
Drug | Novartis Pharmaceuticals Corporation | $74.28 | 3 | 2025 |
Source payment records
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| KISQALI Normalized: kisqali |
Drug | Novartis Pharmaceuticals Corporation | $70.25 | 3 | 2025 |
Source payment records
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| LORBRENA Normalized: lorbrena |
Drug | ARRAY BIOPHARMA INC | $59.93 | 3 | 2025 |
Source payment records
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| IBRANCE Normalized: ibrance |
Drug | PFIZER INC. | $58.16 | 2 | 2025 |
Source payment records
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| TUKYSA Normalized: tukysa |
Drug | PFIZER INC. | $58.16 | 2 | 2025 |
Source payment records
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| VENCLEXTA Normalized: venclexta |
Drug | ABBVIE INC. | $57.85 | 4 | 2025 |
Source payment records
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| Xermelo Normalized: xermelo |
Drug | TerSera Therapeutics LLC | $56.19 | 2 | 2025 |
Source payment records
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| LYNPARZA Normalized: lynparza |
Biological, Drug | AstraZeneca Pharmaceuticals LP, Merck Sharp & Dohme LLC | $53.78 | 2 | 2025 |
Source payment records
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| CALQUENCE Normalized: calquence |
Drug | AstraZeneca Pharmaceuticals LP | $50.67 | 2 | 2025 |
Source payment records
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| DATROWAY Normalized: datroway |
Drug | Daiichi Sankyo Inc. | $41.87 | 2 | 2025 |
Source payment records
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| REBLOZYL Normalized: reblozyl |
Biological | Celgene Corporation | $40.81 | 2 | 2025 |
Source payment records
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| ELREXFIO Normalized: elrexfio |
Drug | PFIZER INC. | $36.72 | 4 | 2025 |
Source payment records
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| PADCEV Normalized: padcev |
Biological | PFIZER INC. | $30.34 | 2 | 2025 |
Source payment records
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| DANZITEN Normalized: danziten |
Drug | Azurity Pharmaceuticals, Inc. | $28.00 | 1 | 2025 |
Source payment records
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| XPOVIO Normalized: xpovio |
Drug | Karyopharm Therapeutics Inc. | $25.95 | 1 | 2025 |
Source payment records
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| AKEEGA Normalized: akeega |
Drug | Janssen Biotech, Inc. | $25.25 | 1 | 2025 |
Source payment records
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| BALVERSA Normalized: balversa |
Drug | Janssen Biotech, Inc. | $25.25 | 1 | 2025 |
Source payment records
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| ERLEADA Normalized: erleada |
Drug | Janssen Biotech, Inc. | $25.25 | 1 | 2025 |
Source payment records
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| JEMPERLI Normalized: jemperli |
Biological | GlaxoSmithKline, LLC. | $25.09 | 1 | 2025 |
Source payment records
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| ZEJULA Normalized: zejula |
Drug | GlaxoSmithKline, LLC. | $25.09 | 1 | 2025 |
Source payment records
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| Onivyde Normalized: onivyde |
Drug | Ipsen Biopharmaceuticals, Inc | $24.80 | 1 | 2025 |
Source payment records
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| ADCETRIS Normalized: adcetris |
Biological | PFIZER INC. | $22.95 | 1 | 2025 |
Source payment records
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| IMFINZI Normalized: imfinzi |
Biological | AstraZeneca Pharmaceuticals LP | $22.94 | 1 | 2025 |
Source payment records
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| BRAFTOVI Normalized: braftovi |
Drug | ARRAY BIOPHARMA INC | $20.27 | 1 | 2025 |
Source payment records
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| MEKTOVI Normalized: mektovi |
Drug | ARRAY BIOPHARMA INC | $20.27 | 1 | 2025 |
Source payment records
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| Xtandi Normalized: xtandi |
Drug | Astellas Pharma US Inc | $19.64 | 1 | 2025 |
Source payment records
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| ELAHERE Normalized: elahere |
Drug | ABBVIE INC. | $18.87 | 1 | 2025 |
Source payment records
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| OPDIVO Normalized: opdivo |
Biological | E.R. Squibb & Sons, L.L.C. | $16.68 | 1 | 2025 |
Source payment records
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| Vanflyta Normalized: vanflyta |
Drug | Daiichi Sankyo Inc. | $10.51 | 1 | 2025 |
Source payment records
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* 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 product | Payment year | Part D brand | Part D year | Claims | Match method | Source |
|---|---|---|---|---|---|---|
| CALQUENCE calquence |
2025 | Calquence | 2024 | 16 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| KISQALI kisqali |
2025 | Kisqali | 2024 | 16 Beneficiary count suppressed |
exact normalized | Medicare Part D |
| Xtandi xtandi |
2025 | Xtandi | 2024 | 27 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 company | Payment year | Drug reported by same entity | Open Payments evidence | Part D | Claims | Beneficiaries |
|---|---|---|---|---|---|---|
| ARRAY BIOPHARMA INC Exact reporting entity; no affiliate inference |
2025 | BOSULIF open payments reported associated product |
CMS Open Payments — General Payments 11 supporting records · 11 recipient NPIs · example record 1228863907 |
Bosulif · 2024 Exact normalized brand match · 1 Part D row |
14 | suppressed by CMS |
| ARRAY BIOPHARMA INC Exact reporting entity; no affiliate inference |
2025 | XTANDI open payments reported associated product |
CMS Open Payments — General Payments 98 supporting records · 88 recipient NPIs · example record 1228800820 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
27 | suppressed by CMS |
| Astellas Pharma US Inc Exact reporting entity; no affiliate inference |
2025 | Xtandi open payments reported associated product |
CMS Open Payments — General Payments 11345 supporting records · 5418 recipient NPIs · example record 1238560686 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
27 | suppressed by CMS |
| AstraZeneca Pharmaceuticals LP Exact reporting entity; no affiliate inference |
2025 | CALQUENCE open payments reported associated product |
CMS Open Payments — General Payments 8404 supporting records · 3935 recipient NPIs · example record 1206131382 |
Calquence · 2024 Exact normalized brand match · 1 Part D row |
16 | 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 |
113 | 24 |
| 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 |
27 | 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 |
113 | 24 |
| Janssen Biotech, Inc. Exact reporting entity; no affiliate inference |
2025 | XARELTO open payments reported associated product |
CMS Open Payments — General Payments 24 supporting records · 23 recipient NPIs · example record 1174259978 |
Xarelto · 2024 Exact normalized brand match · 1 Part D row |
13 | suppressed by CMS |
| Merck Sharp & Dohme LLC Exact reporting entity; no affiliate inference |
2025 | LENVIMA open payments reported associated product |
CMS Open Payments — General Payments 66 supporting records · 58 recipient NPIs · example record 1237995778 |
Lenvima · 2024 Exact normalized brand match · 1 Part D row |
12 | suppressed by CMS |
| Novartis Pharmaceuticals Corporation Exact reporting entity; no affiliate inference |
2025 | KISQALI open payments reported associated product |
CMS Open Payments — General Payments 31637 supporting records · 7959 recipient NPIs · example record 1200004789 |
Kisqali · 2024 Exact normalized brand match · 1 Part D row |
16 | suppressed by CMS |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | BOSULIF open payments reported associated product |
CMS Open Payments — General Payments 3017 supporting records · 2109 recipient NPIs · example record 1228795613 |
Bosulif · 2024 Exact normalized brand match · 1 Part D row |
14 | 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 |
113 | 24 |
| PFIZER INC. Exact reporting entity; no affiliate inference |
2025 | XTANDI open payments reported associated product |
CMS Open Payments — General Payments 19368 supporting records · 7657 recipient NPIs · example record 1228794230 |
Xtandi · 2024 Exact normalized brand match · 1 Part D row |
27 | 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
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Anastrozole | Anastrozole | 117 | 38 |
| Eliquis | Apixaban | 113 | 24 |
| Letrozole | Letrozole | 75 | 22 |
| Revlimid | Lenalidomide | 61 | 13 |
| Tamoxifen Citrate | Tamoxifen Citrate | 50 | 16 |
| Hydroxyurea | Hydroxyurea | 45 | suppressed |
| Valacyclovir | Valacyclovir Hcl | 44 | 14 |
| Exemestane | Exemestane | 43 | 13 |
| Dexamethasone | Dexamethasone | 36 | 21 |
| Pantoprazole Sodium | Pantoprazole Sodium | 30 | suppressed |
| Pomalyst | Pomalidomide | 27 | suppressed |
| Xtandi | Enzalutamide | 27 | suppressed |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 25 | suppressed |
| Abiraterone Acetate | Abiraterone Acetate | 24 | suppressed |
| Olanzapine | Olanzapine | 24 | suppressed |
| Lenalidomide | Lenalidomide | 19 | suppressed |
| Procrit | Epoetin Alfa | 17 | suppressed |
| Allopurinol | Allopurinol | 16 | suppressed |
| Calquence | Acalabrutinib Maleate | 16 | suppressed |
| Kisqali | Ribociclib Succinate | 16 | suppressed |
| Potassium Chloride | Potassium Chloride | 16 | suppressed |
| Prednisone | Prednisone | 15 | suppressed |
| Alendronate Sodium | Alendronate Sodium | 14 | suppressed |
| Bosulif | Bosutinib | 14 | suppressed |
| Methadone Hcl | Methadone Hcl | 14 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 14 | 12 |
| Jakafi | Ruxolitinib Phosphate | 13 | suppressed |
| Xarelto | Rivaroxaban | 13 | suppressed |
| Cabometyx | Cabozantinib S-Malate | 12 | suppressed |
| Fentanyl | Fentanyl | 12 | suppressed |
| Hydromorphone Hcl | Hydromorphone Hcl | 12 | suppressed |
| Lenvima | Lenvatinib Mesylate | 12 | suppressed |
| Nubeqa | Darolutamide | 12 | suppressed |
| Trazodone Hcl | Trazodone Hcl | 12 | suppressed |
| Verzenio | Abemaciclib | 12 | suppressed |
| Oxycodone Hcl | Oxycodone Hcl | 11 | suppressed |
| Triamcinolone Acetonide | Triamcinolone Acetonide | 11 | suppressed |
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.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part D coverage |
|---|---|---|---|---|---|
| 2025 | $1,573.80 · 65 records | SEAGEN INC. | ADCETRIS, AKEEGA, BALVERSA, BRAFTOVI, CALQUENCE, CARVYKTI, DANZITEN, DATROWAY, ELAHERE, ELREXFIO, EPKINLY, ERLEADA, Enhertu, IBRANCE, IMBRUVICA, IMFINZI, JEMPERLI, KEYTRUDA, KISQALI, LORBRENA, LYNPARZA, MEKTOVI, OPDIVO, Onivyde, PADCEV, REBLOZYL, RYBREVANT, SCEMBLIX, TUKYSA, Trodelvy, VENCLEXTA, Vanflyta, XPOVIO, Xermelo, Xtandi, ZEJULA | 13 | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- What role, if any, does Calquence play in your treatment recommendations for me?
- How do you evaluate evidence when you have a financial relationship with ARRAY BIOPHARMA INC?
- Are there reasonable alternatives I should understand when we discuss treatment options?
- How should I interpret the industry-payment records shown here in the context of my care?
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
How to read this page
- Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
- Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
- Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
- Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
- When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.
Loaded source releases
| Dataset | Year | Publication | Source |
|---|---|---|---|
| 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 |
Full methodology · Questions & answers · Report a possible error