Healthcare provider profile · identity verified

Preet Paul Singh, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Hematology & Oncology · SPRINGFIELD, IL · NPI 1881859833

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 Preet Paul Singh, MD received $1,645.70 in general payments during 2025 across 40 reported records.

Eli Lilly and Company accounted for 49.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 24 associated products.

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

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 25 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 61 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 61 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 15 claims for Calquence 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 TAGRISSO as an associated drug or biological on 5285 records involving 2776 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Tagrisso 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 64 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 64 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 25 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 61 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

$1,645.70

40 reported records · 19 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
Eli Lilly and Company Unresolved — no canonical attribution shown $813.0049.4%22025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $144.498.8%62025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $89.025.4%42025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $85.135.2%42025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $69.634.2%32025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $64.653.9%42025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $53.903.3%32025
Exelixis Inc. Unresolved — no canonical attribution shown $39.862.4%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $39.112.4%22025
US Oncology Corporate, Inc. Unresolved — no canonical attribution shown $32.752.0%12025
ABBVIE INC. Unresolved — no canonical attribution shown $30.701.9%12025
EMD Serono, Inc. Unresolved — no canonical attribution shown $27.391.7%12025
Genmab U.S., Inc. Unresolved — no canonical attribution shown $25.811.6%12025
Myriad Genetic Laboratories, Inc. Unresolved — no canonical attribution shown $25.811.6%12025
Janssen Scientific Affairs, LLC Unresolved — no canonical attribution shown $22.321.4%12025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $22.281.4%12025
PFIZER INC. Unresolved — no canonical attribution shown $21.731.3%12025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $20.001.2%12025
Celgene Corporation Unresolved — no canonical attribution shown $18.121.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$895.7039
Consulting Fee$750.001

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
Enhertu
Normalized: enhertu
Drug Daiichi Sankyo Inc. $112.95 4 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $85.13 4 2025
Source payment records
Vyloy
Normalized: vyloy
Drug Astellas Pharma US Inc $69.63 3 2025
Source payment records
KISQALI
Normalized: kisqali
Drug Novartis Pharmaceuticals Corporation $58.48 3 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $53.90 3 2025
Source payment records
WELIREG
Normalized: welireg
Drug Merck Sharp & Dohme LLC $42.03 2 2025
Source payment records
CABOMETYX
Normalized: cabometyx
Drug Exelixis Inc. $39.86 2 2025
Source payment records
TALVEY
Normalized: talvey
Biological Janssen Biotech, Inc. $39.11 2 2025
Source payment records
DATROWAY
Normalized: datroway
Drug Daiichi Sankyo Inc. $31.54 2 2025
Source payment records
VENCLEXTA
Normalized: venclexta
Drug ABBVIE INC. $30.70 1 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $30.54 1 2025
Source payment records
MYRISK
Normalized: myrisk
Device Myriad Genetic Laboratories, Inc. $25.81 1 2025
Source payment records
Tivdak
Normalized: tivdak
Drug Genmab U.S., Inc. $25.81 1 2025
Source payment records
LYNPARZA
Normalized: lynparza
Biological Merck Sharp & Dohme LLC $24.13 1 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Scientific Affairs, LLC $22.32 1 2025
Source payment records
ZEPZELCA
Normalized: zepzelca
Drug JAZZ PHARMACEUTICALS INC. $22.28 1 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $21.73 1 2025
Source payment records
BRAFTOVI
Normalized: braftovi
Drug ARRAY BIOPHARMA INC $20.00 1 2025
Source payment records
MEKTOVI
Normalized: mektovi
Drug ARRAY BIOPHARMA INC $20.00 1 2025
Source payment records
TUKYSA
Normalized: tukysa
Drug ARRAY BIOPHARMA INC $20.00 1 2025
Source payment records
IMFINZI
Normalized: imfinzi
Biological AstraZeneca Pharmaceuticals LP $18.38 1 2025
Source payment records
REBLOZYL
Normalized: reblozyl
Biological Celgene Corporation $18.12 1 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $16.77 1 2025
Source payment records
CALQUENCE
Normalized: calquence
Drug AstraZeneca Pharmaceuticals LP $15.15 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
CALQUENCE
calquence
2025 Calquence 2024 15
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
25 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
61 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
61 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
15 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 TAGRISSO
open payments reported associated product
CMS Open Payments — General Payments
5285 supporting records · 2776 recipient NPIs · example record 1206131546
Tagrisso · 2024
Exact normalized brand match · 1 Part D row
13 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
64 12
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
64 12
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
25 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
61 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
AnastrozoleAnastrozole26482
Ondansetron HclOndansetron Hcl11063
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8621
EliquisApixaban6412
XtandiEnzalutamide61suppressed
Prochlorperazine MaleateProchlorperazine Maleate5535
LoperamideLoperamide Hcl5219
Lidocaine-PrilocaineLidocaine/Prilocaine4937
Levothyroxine SodiumLevothyroxine Sodium4812
GabapentinGabapentin4412
PrednisonePrednisone4422
Ondansetron OdtOndansetron4313
Potassium ChloridePotassium Chloride4216
DexamethasoneDexamethasone3311
HydroxyureaHydroxyurea32suppressed
AcyclovirAcyclovir30suppressed
Tramadol HclTramadol Hcl2711
IbrancePalbociclib25suppressed
Imatinib MesylateImatinib Mesylate25suppressed
LorazepamLorazepam25suppressed
Colestipol HclColestipol Hcl23suppressed
LetrozoleLetrozole22suppressed
ExemestaneExemestane20suppressed
RevlimidLenalidomide20suppressed
CalquenceAcalabrutinib Maleate15suppressed
BrukinsaZanubrutinib14suppressed
LevofloxacinLevofloxacin14suppressed
FurosemideFurosemide13suppressed
MirtazapineMirtazapine13suppressed
TagrissoOsimertinib Mesylate13suppressed
Tamoxifen CitrateTamoxifen Citrate13suppressed
Pantoprazole SodiumPantoprazole Sodium12suppressed
XgevaDenosumab12suppressed
Hydroxyzine HclHydroxyzine 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 $1,645.70 · 40 records Eli Lilly and Company BRAFTOVI, CABOMETYX, CALQUENCE, DARZALEX, DATROWAY, ELREXFIO, Enhertu, Fabhalta, IMFINZI, KEYTRUDA, KISQALI, LYNPARZA, MEKTOVI, MYRISK, REBLOZYL, RYBREVANT, TALVEY, TUKYSA, Tivdak, Trodelvy, VENCLEXTA, Vyloy, WELIREG, ZEPZELCA 9
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