Healthcare provider profile · identity verified

Darren Wayne Lackan, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · FT WORTH, TX · NPI 1053347534

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 Darren Wayne Lackan, M.D. received $3,343.30 in general payments during 2025 across 149 reported records.

Abbott Laboratories accounted for 10.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 43 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Jardiance, Mounjaro, Ozempic, Unithroid.

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 SYNTHROID as an associated drug or biological on 10655 records involving 4881 distinct recipient NPIs. Public Medicare Part D data also shows 362 claims for Synthroid by this doctor in 2024.

Amgen 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 PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Prolia by this doctor in 2024.

Amneal Pharmaceuticals 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 UNITHROID as an associated drug or biological on 7282 records involving 3230 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Unithroid by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 JARDIANCE as an associated drug or biological on 123636 records involving 49438 distinct recipient NPIs. Public Medicare Part D data also shows 51 claims for Jardiance by this doctor in 2024.

Lilly USA, 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 JARDIANCE as an associated drug or biological on 47708 records involving 23833 distinct recipient NPIs. Public Medicare Part D data also shows 51 claims for Jardiance by this doctor in 2024.

Lilly USA, 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 MOUNJARO as an associated drug or biological on 186719 records involving 66436 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Mounjaro by this doctor in 2024.

Lilly USA, 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 TRULICITY as an associated drug or biological on 71 records involving 57 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Trulicity by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 52 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$3,343.30

149 reported records · 34 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
Abbott Laboratories Unresolved — no canonical attribution shown $365.8810.9%162025
Amgen Inc. Unresolved — no canonical attribution shown $334.8710.0%132025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $255.347.6%92025
Novo Nordisk Inc Unresolved — no canonical attribution shown $238.907.2%142025
Corcept Therapeutics Unresolved — no canonical attribution shown $212.706.4%82025
Madrigal Pharmaceuticals Unresolved — no canonical attribution shown $180.095.4%62025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $166.805.0%72025
Lilly USA, LLC Unresolved — no canonical attribution shown $164.614.9%82025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $141.594.2%52025
Ascendis Pharma Endocrinology Inc Unresolved — no canonical attribution shown $111.133.3%42025
BETA BIONICS, INC. Unresolved — no canonical attribution shown $110.823.3%52025
Eisai Inc. Unresolved — no canonical attribution shown $98.002.9%42025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $95.152.9%52025
Sequel Med Tech, LLC Unresolved — no canonical attribution shown $85.832.6%52025
Alvogen Inc Unresolved — no canonical attribution shown $78.652.4%42025
Endo USA, Inc. Unresolved — no canonical attribution shown $71.542.1%32025
Globus Medical, Inc. Unresolved — no canonical attribution shown $67.542.0%32025
Radius Health, Inc. Unresolved — no canonical attribution shown $65.622.0%32025
Chiesi USA, Inc. Unresolved — no canonical attribution shown $57.261.7%22025
Verity Pharmaceuticals Inc. Unresolved — no canonical attribution shown $56.461.7%32025
Tandem Diabetes Care, Inc. Unresolved — no canonical attribution shown $50.551.5%32025
ABBVIE INC. Unresolved — no canonical attribution shown $49.381.5%32025
TOLMAR, INC. Unresolved — no canonical attribution shown $45.461.4%32025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $36.061.1%22025
Soleno Therapeutics, Inc. Unresolved — no canonical attribution shown $34.881.0%12025
Insulet Corporation Unresolved — no canonical attribution shown $34.541.0%22025
KYOWA KIRIN, INC. Unresolved — no canonical attribution shown $20.570.6%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $19.420.6%12025
Mannkind Corporation Unresolved — no canonical attribution shown $18.680.6%12025
PFIZER INC. Unresolved — no canonical attribution shown $16.790.5%12025
Avvisto Therapeutics, LLC Unresolved — no canonical attribution shown $16.370.5%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $14.340.4%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $14.260.4%12025
Echosens North America, Inc. Unresolved — no canonical attribution shown $13.220.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$3,319.26148
Education$24.041

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
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $365.88 16 2025
Source payment records
TEPEZZA
Normalized: tepezza
Biological Amgen Inc. $282.22 7 2025
Source payment records
CRENESSITY
Normalized: crenessity
Drug Neurocrine BioSciences, Inc. $255.34 9 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $212.70 8 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $210.32 12 2025
Source payment records
REZDIFFRA
Normalized: rezdiffra
Drug Madrigal Pharmaceuticals $180.09 6 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $164.61 8 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $141.80 7 2025
Source payment records
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $141.59 5 2025
Source payment records
Yorvipath
Normalized: yorvipath
Drug Ascendis Pharma Endocrinology Inc $111.13 4 2025
Source payment records
iLet Bionic Pancreas
Normalized: ilet bionic pancreas
Device BETA BIONICS, INC. $110.82 5 2025
Source payment records
iLet Insulin Infusion Kit Contact Detach
Normalized: ilet insulin infusion kit contact detach
Device BETA BIONICS, INC. $110.82 5 2025
Source payment records
iLet Insulin Infusion Kit Inset
Normalized: ilet insulin infusion kit inset
Device BETA BIONICS, INC. $110.82 5 2025
Source payment records
GVOKE HYPOPEN
Normalized: gvoke hypopen
Drug Xeris Pharmaceuticals, Inc. $100.14 4 2025
Source payment records
Lenvima
Normalized: lenvima
Drug Eisai Inc. $98.00 4 2025
Source payment records
UNITHROID
Normalized: unithroid
Drug Amneal Pharmaceuticals LLC $95.15 5 2025
Source payment records
TWIIST
Normalized: twiist
Device Sequel Med Tech, LLC $85.83 5 2025
Source payment records
TERIPARATIDE
Normalized: teriparatide
Drug Alvogen Inc $78.65 4 2025
Source payment records
AVEED
Normalized: aveed
Biological Endo USA, Inc. $71.54 3 2025
Source payment records
Senza
Normalized: senza
Device Globus Medical, Inc. $67.54 3 2025
Source payment records
RECORLEV
Normalized: recorlev
Drug Xeris Pharmaceuticals, Inc. $66.66 3 2025
Source payment records
Tymlos
Normalized: tymlos
Drug Radius Health, Inc. $65.62 3 2025
Source payment records
MYCAPSSA
Normalized: mycapssa
Drug Chiesi USA, Inc. $57.26 2 2025
Source payment records
t:slim X2 Insulin Pump with Control-IQ
Normalized: t slim x2 insulin pump with control iq
Device Tandem Diabetes Care, Inc. $50.55 3 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $46.92 5 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $45.70 2 2025
Source payment records
JATENZO
Normalized: jatenzo
Drug TOLMAR, INC. $45.46 3 2025
Source payment records
Tlando
Normalized: tlando
Drug Verity Pharmaceuticals Inc. $39.09 2 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $36.06 2 2025
Source payment records
VYKAT XR
Normalized: vykat xr
Drug Soleno Therapeutics, Inc. $34.88 1 2025
Source payment records
Omnipod
Normalized: omnipod
Device Insulet Corporation $34.54 2 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $28.58 2 2025
Source payment records
CRYSVITA
Normalized: crysvita
Drug KYOWA KIRIN, INC. $20.57 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $19.42 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $19.42 1 2025
Source payment records
AFREZZA
Normalized: afrezza
Drug Mannkind Corporation $18.68 1 2025
Source payment records
Trelstar
Normalized: trelstar
Drug Verity Pharmaceuticals Inc. $17.37 1 2025
Source payment records
SOMAVERT
Normalized: somavert
Drug PFIZER INC. $16.79 1 2025
Source payment records
CYCLOSET
Normalized: cycloset
Drug Avvisto Therapeutics, LLC $16.37 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $14.34 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $14.26 1 2025
Source payment records
Fibroscan
Normalized: fibroscan
Device Echosens North America, Inc. $13.22 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $5.73 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
JARDIANCE
jardiance
2025 Jardiance 2024 51 exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 32
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 52 exact normalized Medicare Part D
UNITHROID
unithroid
2025 Unithroid 2024 17
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 SYNTHROID
open payments reported associated product
CMS Open Payments — General Payments
10655 supporting records · 4881 recipient NPIs · example record 1201352636
Synthroid · 2024
Exact normalized brand match · 1 Part D row
362 100
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Amneal Pharmaceuticals LLC
Exact reporting entity; no affiliate inference
2025 UNITHROID
open payments reported associated product
CMS Open Payments — General Payments
7282 supporting records · 3230 recipient NPIs · example record 1220525525
Unithroid · 2024
Exact normalized brand match · 1 Part D row
17 suppressed by CMS
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
123636 supporting records · 49438 recipient NPIs · example record 1221811583
Jardiance · 2024
Exact normalized brand match · 1 Part D row
51 15
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
47708 supporting records · 23833 recipient NPIs · example record 1186464557
Jardiance · 2024
Exact normalized brand match · 1 Part D row
51 15
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
186719 supporting records · 66436 recipient NPIs · example record 1186464455
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
32 suppressed by CMS
Lilly USA, LLC
Exact reporting entity; no affiliate inference
2025 TRULICITY
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 57 recipient NPIs · example record 1186464601
Trulicity · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
52 15

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
SynthroidLevothyroxine Sodium362100
Levothyroxine SodiumLevothyroxine Sodium22986
Lidocaine-PrilocaineLidocaine/Prilocaine6459
CalcitriolCalcitriol5411
Testosterone CypionateTestosterone Cypionate5312
OzempicSemaglutide5215
JardianceEmpagliflozin5115
TirosintLevothyroxine Sodium4712
Tresiba Flextouch U-100Insulin Degludec4115
TestosteroneTestosterone40suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic4012
Metformin HclMetformin Hcl3814
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3411
Humalog Kwikpen U-100Insulin Lispro3314
MounjaroTirzepatide32suppressed
Rosuvastatin CalciumRosuvastatin Calcium3215
Metformin Hcl ErMetformin Hcl2612
UnithroidLevothyroxine Sodium17suppressed
Liothyronine SodiumLiothyronine Sodium16suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic15suppressed
PrednisonePrednisone14suppressed
TrulicityDulaglutide14suppressed
HumalogInsulin Lispro12suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog11suppressed
CabergolineCabergoline11suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic11suppressed
Novolog FlexpenInsulin Aspart11suppressed
ProliaDenosumab11suppressed
VascepaIcosapent Ethyl11suppressed

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 $3,343.30 · 149 records Abbott Laboratories AFREZZA, AREXVY, AVEED, CRENESSITY, CRYSVITA, CYCLOSET, Dexcom G6 Transmitter, EVENITY, FREESTYLE LIBRE 3, Fibroscan, GVOKE HYPOPEN, JARDIANCE, JATENZO, Kerendia, Korlym, Lenvima, MOUNJARO, MYCAPSSA, Omnipod, Ozempic, RECORLEV, REPATHA, REZDIFFRA, Rybelsus, SHINGRIX, SOMAVERT, Senza, TEPEZZA, TERIPARATIDE, TWIIST, TZIELD, Tlando, Trelstar, Tymlos, UNITHROID, VYKAT XR, Wegovy, Yorvipath, ZEPBOUND, iLet Bionic Pancreas, iLet Insulin Infusion Kit Contact Detach, iLet Insulin Infusion Kit Inset, t:slim X2 Insulin Pump with Control-IQ 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