Healthcare provider profile · identity verified

David J Park, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Medical Oncology · FULLERTON, CA · NPI 1275619447

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 David J Park, M.D. received $8,731.39 in general payments during 2025 across 145 reported records.

AstraZeneca Pharmaceuticals LP accounted for 39.6% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 61 associated products.

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

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 18 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 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 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.

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 30 claims for Xarelto 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 15 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 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.

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

Payment overview · 2025

General Payments

$8,731.39

145 reported records · 37 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $3,458.4339.6%182025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $2,554.8029.3%142025
Celgene Corporation Unresolved — no canonical attribution shown $268.763.1%222025
HISTOSONICS, INC. Unresolved — no canonical attribution shown $228.202.6%12025
Incyte Corporation Unresolved — no canonical attribution shown $182.742.1%52025
ABBVIE INC. Unresolved — no canonical attribution shown $174.522.0%112025
Daiichi Sankyo Inc. Unresolved — no canonical attribution shown $163.031.9%62025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $144.011.6%52025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $127.651.5%42025
BeOne Medicines USA, Inc. Unresolved — no canonical attribution shown $120.211.4%42025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $116.041.3%52025
Telix Pharmaceuticals Unresolved — no canonical attribution shown $114.201.3%32025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $91.581.1%52025
Lilly USA, LLC Unresolved — no canonical attribution shown $77.490.9%42025
Eisai Inc. Unresolved — no canonical attribution shown $76.570.9%32025
Exelixis Inc. Unresolved — no canonical attribution shown $73.930.8%22025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $73.470.8%22025
Caris MPI, Inc. Unresolved — no canonical attribution shown $60.300.7%22025
ARRAY BIOPHARMA INC Unresolved — no canonical attribution shown $56.810.7%32025
Karyopharm Therapeutics Inc. Unresolved — no canonical attribution shown $56.450.7%22025
Genentech USA, Inc. Unresolved — no canonical attribution shown $56.110.6%22025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $54.230.6%22025
EMD Serono, Inc. Unresolved — no canonical attribution shown $49.140.6%12025
Aveo Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $45.540.5%22025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $43.370.5%22025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $35.050.4%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $30.980.3%12025
SERVIER PHARMACEUTICALS LLC Unresolved — no canonical attribution shown $28.530.3%12025
SOBI, INC Unresolved — no canonical attribution shown $26.380.3%12025
PFIZER INC. Unresolved — no canonical attribution shown $23.640.3%32025
Rigel Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $20.930.2%12025
PUMA BIOTECHNOLOGY, INC. Unresolved — no canonical attribution shown $20.000.2%12025
GENZYME CORPORATION Unresolved — no canonical attribution shown $18.480.2%12025
TAIHO ONCOLOGY, INC. Unresolved — no canonical attribution shown $15.960.2%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $15.680.2%12025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $14.400.2%12025
Ipsen Biopharmaceuticals, Inc Unresolved — no canonical attribution shown $13.780.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$3,608.66139
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,980.002
Consulting Fee$1,980.001
Education$137.982
Travel and Lodging$24.751

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
TECVAYLI
Normalized: tecvayli
Biological Janssen Biotech, Inc. $2,306.79 8 2025
Source payment records
IMFINZI
Normalized: imfinzi
Biological AstraZeneca Pharmaceuticals LP $333.86 2 2025
Source payment records
CALQUENCE
Normalized: calquence
Drug AstraZeneca Pharmaceuticals LP $241.81 11 2025
Source payment records
REBLOZYL
Normalized: reblozyl
Biological Celgene Corporation $240.76 21 2025
Source payment records
RYBREVANT
Normalized: rybrevant
Drug Janssen Biotech, Inc. $207.62 4 2025
Source payment records
ENHERTU
Normalized: enhertu
Biological, Drug AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc. $168.58 6 2025
Source payment records
CARVYKTI
Normalized: carvykti
Drug Janssen Biotech, Inc. $150.00 1 2025
Source payment records
Trodelvy
Normalized: trodelvy
Drug Gilead Sciences, Inc. $144.01 5 2025
Source payment records
TALVEY
Normalized: talvey
Biological Janssen Biotech, Inc. $137.97 4 2025
Source payment records
DARZALEX
Normalized: darzalex
Biological Janssen Biotech, Inc. $120.73 4 2025
Source payment records
BRUKINSA
Normalized: brukinsa
Drug BeOne Medicines USA, Inc. $120.21 4 2025
Source payment records
EPKINLY
Normalized: epkinly
Drug ABBVIE INC. $107.90 8 2025
Source payment records
IMBRUVICA
Normalized: imbruvica
Drug ABBVIE INC. $107.90 8 2025
Source payment records
FRUZAQLA
Normalized: fruzaqla
Drug Takeda Pharmaceuticals U.S.A., Inc. $107.35 3 2025
Source payment records
MONJUVI
Normalized: monjuvi
Drug Incyte Corporation $94.75 4 2025
Source payment records
KEYTRUDA
Normalized: keytruda
Biological Merck Sharp & Dohme LLC $91.58 5 2025
Source payment records
JAYPIRCA
Normalized: jaypirca
Drug Lilly USA, LLC $77.49 4 2025
Source payment records
VERZENIO
Normalized: verzenio
Drug Lilly USA, LLC $77.49 4 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $76.57 3 2025
Source payment records
CABOMETYX
Normalized: cabometyx
Drug Exelixis Inc. $73.93 2 2025
Source payment records
LIBTAYO
Normalized: libtayo
Biological Regeneron Healthcare Solutions, Inc. $73.47 2 2025
Source payment records
MI CANCER SEEK
Normalized: mi cancer seek
Device Caris MPI, Inc. $60.30 2 2025
Source payment records
LORBRENA
Normalized: lorbrena
Drug ARRAY BIOPHARMA INC $56.81 3 2025
Source payment records
KISQALI
Normalized: kisqali
Drug Novartis Pharmaceuticals Corporation $56.54 2 2025
Source payment records
XPOVIO
Normalized: xpovio
Drug Karyopharm Therapeutics Inc. $56.45 2 2025
Source payment records
DATROWAY
Normalized: datroway
Drug Daiichi Sankyo Inc. $55.17 2 2025
Source payment records
ZEPZELCA
Normalized: zepzelca
Drug JAZZ PHARMACEUTICALS INC. $54.23 2 2025
Source payment records
ILLUCCIX
Normalized: illuccix
Drug Telix Pharmaceuticals $53.83 2 2025
Source payment records
PEMAZYRE
Normalized: pemazyre
Drug Incyte Corporation $50.33 2 2025
Source payment records
FOTIVDA
Normalized: fotivda
Drug Aveo Pharmaceuticals, Inc. $45.54 2 2025
Source payment records
ZYNYZ
Normalized: zynyz
Drug Incyte Corporation $44.42 2 2025
Source payment records
OPDIVO
Normalized: opdivo
Biological E.R. Squibb & Sons, L.L.C. $43.37 2 2025
Source payment records
VENCLEXTA
Normalized: venclexta
Drug ABBVIE INC. $38.81 2 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $35.06 2 2025
Source payment records
Nubeqa
Normalized: nubeqa
Drug Bayer Healthcare Pharmaceuticals Inc. $35.05 2 2025
Source payment records
Tibsovo
Normalized: tibsovo
Drug SERVIER PHARMACEUTICALS LLC $28.53 1 2025
Source payment records
Itovebi
Normalized: itovebi
Biological Genentech USA, Inc. $28.28 1 2025
Source payment records
OPDUALAG
Normalized: opdualag
Drug Celgene Corporation $28.00 1 2025
Source payment records
Polivy
Normalized: polivy
Biological Genentech USA, Inc. $27.83 1 2025
Source payment records
EMRELIS
Normalized: emrelis
Drug ABBVIE INC. $27.81 1 2025
Source payment records
Vonjo
Normalized: vonjo
Drug SOBI, INC $26.38 1 2025
Source payment records
SCEMBLIX
Normalized: scemblix
Drug Novartis Pharmaceuticals Corporation $24.44 1 2025
Source payment records
Gavreto
Normalized: gavreto
Drug Rigel Pharmaceuticals, Inc. $20.93 1 2025
Source payment records
Rezlidhia
Normalized: rezlidhia
Drug Rigel Pharmaceuticals, Inc. $20.93 1 2025
Source payment records
TAVALISSE
Normalized: tavalisse
Drug Rigel Pharmaceuticals, Inc. $20.93 1 2025
Source payment records
NINLARO
Normalized: ninlaro
Drug Takeda Pharmaceuticals U.S.A., Inc. $20.30 1 2025
Source payment records
Stivarga
Normalized: stivarga
Drug Bayer Healthcare Pharmaceuticals Inc. $20.30 1 2025
Source payment records
Vitrakvi
Normalized: vitrakvi
Drug Bayer Healthcare Pharmaceuticals Inc. $20.30 1 2025
Source payment records
NERLYNX
Normalized: nerlynx
Drug PUMA BIOTECHNOLOGY, INC. $20.00 1 2025
Source payment records
AYVAKIT
Normalized: ayvakit
Biological GENZYME CORPORATION $18.48 1 2025
Source payment records
LYNPARZA
Normalized: lynparza
Drug AstraZeneca Pharmaceuticals LP $17.04 1 2025
Source payment records
ELREXFIO
Normalized: elrexfio
Drug PFIZER INC. $17.00 2 2025
Source payment records
INQOVI
Normalized: inqovi
Drug TAIHO ONCOLOGY, INC. $15.96 1 2025
Source payment records
LONSURF
Normalized: lonsurf
Drug TAIHO ONCOLOGY, INC. $15.96 1 2025
Source payment records
OJJAARA
Normalized: ojjaara
Drug GlaxoSmithKline, LLC. $15.68 1 2025
Source payment records
KEYTRUDA QLEX
Normalized: keytruda qlex
Biological Merck Sharp & Dohme LLC $15.65 1 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $14.40 1 2025
Source payment records
Onivyde
Normalized: onivyde
Drug Ipsen Biopharmaceuticals, Inc $13.78 1 2025
Source payment records
Somatuline Depot
Normalized: somatuline depot
Drug Ipsen Biopharmaceuticals, Inc $13.78 1 2025
Source payment records
ADCETRIS
Normalized: adcetris
Biological PFIZER INC. $7.40 1 2025
Source payment records
PADCEV
Normalized: padcev
Biological PFIZER INC. $6.64 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
KISQALI
kisqali
2025 Kisqali 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
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
18 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
66 23
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 23
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
30 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
15 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 23

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
AnastrozoleAnastrozole21267
DexamethasoneDexamethasone7536
Prochlorperazine MaleateProchlorperazine Maleate7251
EliquisApixaban6623
Ondansetron HclOndansetron Hcl6447
LetrozoleLetrozole5625
Potassium ChloridePotassium Chloride4125
PrednisonePrednisone3820
Alendronate SodiumAlendronate Sodium3214
Lidocaine-PrilocaineLidocaine/Prilocaine3228
XareltoRivaroxaban30suppressed
GabapentinGabapentin26suppressed
Pantoprazole SodiumPantoprazole Sodium2515
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen2314
HydroxyureaHydroxyurea23suppressed
Tamoxifen CitrateTamoxifen Citrate23suppressed
AcyclovirAcyclovir21suppressed
TagrissoOsimertinib Mesylate18suppressed
ExemestaneExemestane16suppressed
CalquenceAcalabrutinib Maleate15suppressed
KisqaliRibociclib Succinate15suppressed
FentanylFentanyl13suppressed

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 $8,731.39 · 145 records AstraZeneca Pharmaceuticals LP ADCETRIS, AYVAKIT, BRUKINSA, CABOMETYX, CALQUENCE, CARVYKTI, DARZALEX, DATROWAY, ELREXFIO, EMRELIS, ENHERTU, EPKINLY, FOTIVDA, FRUZAQLA, Fabhalta, Gavreto, ILLUCCIX, IMBRUVICA, IMFINZI, INQOVI, Itovebi, JAYPIRCA, KEYTRUDA, KEYTRUDA QLEX, KISQALI, LIBTAYO, LONSURF, LORBRENA, LYNPARZA, Lenvima, MI CANCER SEEK, MONJUVI, NERLYNX, NINLARO, Nubeqa, OJJAARA, OPDIVO, OPDUALAG, Onivyde, PADCEV, PEMAZYRE, Polivy, REBLOZYL, RYBREVANT, Rezlidhia, SCEMBLIX, Somatuline Depot, Stivarga, TALVEY, TAVALISSE, TECVAYLI, Tibsovo, Trodelvy, ULTOMIRIS, VENCLEXTA, VERZENIO, Vitrakvi, Vonjo, XPOVIO, ZEPZELCA, ZYNYZ 7
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