Healthcare provider profile · identity verified

Timothy L Gillison, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · SPRINGFIELD, IL · NPI 1710905906

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 Timothy L Gillison, MD received $146.62 in general payments during 2025 across 7 reported records.

PFIZER INC. accounted for 31.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ibrance.

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 IBRANCE as an associated drug or biological on 54 records involving 52 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Ibrance 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 35 claims for Xtandi 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 66 claims for Eliquis 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 SPRYCEL as an associated drug or biological on 32 records involving 32 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Sprycel 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 71 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 66 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 IBRANCE as an associated drug or biological on 11505 records involving 4934 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Ibrance 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 35 claims for Xtandi by this doctor in 2024.

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

Payment overview · 2025

General Payments

$146.62

7 reported records · 6 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
PFIZER INC. Unresolved — no canonical attribution shown $46.0931.4%22025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $28.0119.1%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $22.2415.2%12025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $17.5011.9%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $17.4611.9%12025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $15.3210.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$115.976
Education$30.651

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
IBRANCE
Normalized: ibrance
Drug PFIZER INC. $30.65 1 2025
Source payment records
FRUZAQLA
Normalized: fruzaqla
Drug Takeda Pharmaceuticals U.S.A., Inc. $28.01 1 2025
Source payment records
OPDUALAG
Normalized: opdualag
Drug E.R. Squibb & Sons, L.L.C. $22.24 1 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $17.50 1 2025
Source payment records
LORBRENA
Normalized: lorbrena
Drug ARRAY BIOPHARMA INC $17.50 1 2025
Source payment records
MEKTOVI
Normalized: mektovi
Drug ARRAY BIOPHARMA INC $17.50 1 2025
Source payment records
XALKORI
Normalized: xalkori
Drug ARRAY BIOPHARMA INC $17.50 1 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $17.46 1 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $15.44 1 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $15.32 1 2025
Source payment records
TECVAYLI
Normalized: tecvayli
Biological Janssen Biotech, Inc. $15.32 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
IBRANCE
ibrance
2025 Ibrance 2024 23
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
ARRAY BIOPHARMA INC
Exact reporting entity; no affiliate inference
2025 IBRANCE
open payments reported associated product
CMS Open Payments — General Payments
54 supporting records · 52 recipient NPIs · example record 1228804288
Ibrance · 2024
Exact normalized brand match · 1 Part D row
23 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
35 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
66 13
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 SPRYCEL
open payments reported associated product
CMS Open Payments — General Payments
32 supporting records · 32 recipient NPIs · example record 1184390211
Sprycel · 2024
Exact normalized brand match · 1 Part D row
11 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
71 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
66 13
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 IBRANCE
open payments reported associated product
CMS Open Payments — General Payments
11505 supporting records · 4934 recipient NPIs · example record 1228794164
Ibrance · 2024
Exact normalized brand match · 1 Part D row
23 suppressed by CMS
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
35 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
AnastrozoleAnastrozole23660
Potassium ChloridePotassium Chloride10334
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8838
HydroxyureaHydroxyurea7117
ImbruvicaIbrutinib71suppressed
Ondansetron HclOndansetron Hcl7031
LetrozoleLetrozole6922
PrednisonePrednisone6918
EliquisApixaban6613
GabapentinGabapentin5515
AcyclovirAcyclovir49suppressed
Prochlorperazine MaleateProchlorperazine Maleate4920
AlprazolamAlprazolam40suppressed
RevlimidLenalidomide40suppressed
DexamethasoneDexamethasone3515
XtandiEnzalutamide35suppressed
Abiraterone AcetateAbiraterone Acetate34suppressed
PomalystPomalidomide31suppressed
VerzenioAbemaciclib30suppressed
Tamoxifen CitrateTamoxifen Citrate29suppressed
Warfarin SodiumWarfarin Sodium29suppressed
Bupropion Hcl SrBupropion Hcl28suppressed
Imatinib MesylateImatinib Mesylate26suppressed
Duloxetine HclDuloxetine Hcl24suppressed
IbrancePalbociclib23suppressed
Trazodone HclTrazodone Hcl22suppressed
Venlafaxine Hcl ErVenlafaxine Hcl22suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2118
Morphine Sulfate ErMorphine Sulfate2111
FurosemideFurosemide2013
SorafenibSorafenib Tosylate20suppressed
Ibandronate SodiumIbandronate Sodium18suppressed
Ondansetron OdtOndansetron1714
Lidocaine-PrilocaineLidocaine/Prilocaine1613
Levothyroxine SodiumLevothyroxine Sodium15suppressed
SpironolactoneSpironolactone15suppressed
JakafiRuxolitinib Phosphate14suppressed
Tramadol HclTramadol Hcl14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Sertraline HclSertraline Hcl13suppressed
LevofloxacinLevofloxacin1211
LumakrasSotorasib12suppressed
TagrissoOsimertinib Mesylate12suppressed
Escitalopram OxalateEscitalopram Oxalate11suppressed
FentanylFentanyl11suppressed
HydrocortisoneHydrocortisone11suppressed
LorazepamLorazepam11suppressed
NubeqaDarolutamide11suppressed
SprycelDasatinib11suppressed
Tamsulosin HclTamsulosin Hcl11suppressed

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 $146.62 · 7 records PFIZER INC. BRAFTOVI, DARZALEX, ELREXFIO, FRUZAQLA, IBRANCE, LORBRENA, MEKTOVI, OPDUALAG, TECVAYLI, Trodelvy, XALKORI 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