Healthcare provider profile · identity verified

Michael T Duffy, M.D.

Allopathic & Osteopathic Physicians|Preventive Medicine|Occupational Medicine · BEVERLY HILLS, CA · NPI 1689635328

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 Michael T Duffy, M.D. received $1,283.08 in general payments during 2025 across 49 reported records.

Amgen Inc. accounted for 26.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 26 associated products.

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

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 70 claims for Synthroid 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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 34 claims for Farxiga 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 11 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 25 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

$1,283.08

49 reported records · 18 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
Amgen Inc. Unresolved — no canonical attribution shown $342.7326.7%102025
ABBVIE INC. Unresolved — no canonical attribution shown $327.0525.5%102025
Lilly USA, LLC Unresolved — no canonical attribution shown $67.865.3%32025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $66.605.2%32025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $66.305.2%32025
Novo Nordisk Inc Unresolved — no canonical attribution shown $47.533.7%22025
Lundbeck LLC Unresolved — no canonical attribution shown $45.993.6%22025
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $42.143.3%22025
SANOFI-AVENTIS U.S. LLC Unresolved — no canonical attribution shown $40.953.2%22025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $38.373.0%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $36.862.9%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $32.932.6%22025
Exact Sciences Corporation Unresolved — no canonical attribution shown $23.851.9%12025
HEARTFLOW, INC. Unresolved — no canonical attribution shown $23.161.8%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $22.651.8%12025
Eisai Inc. Unresolved — no canonical attribution shown $22.641.8%12025
Medline Industries LP Unresolved — no canonical attribution shown $20.571.6%12025
Currax Pharmaceuticals LLC Unresolved — no canonical attribution shown $14.901.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,283.0849

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
OTEZLA
Normalized: otezla
Drug Amgen Inc. $296.89 8 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $221.39 4 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $151.86 7 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $87.87 5 2025
Source payment records
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $67.86 3 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $66.60 3 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $66.60 3 2025
Source payment records
CAPVAXIVE
Normalized: capvaxive
Biological Merck Sharp & Dohme LLC $66.30 3 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC $45.99 2 2025
Source payment records
TEPEZZA
Normalized: tepezza
Biological Amgen Inc. $45.84 2 2025
Source payment records
GEMTESA
Normalized: gemtesa
Drug Sumitomo Pharma America, Inc. $42.14 2 2025
Source payment records
GARDASIL 9
Normalized: gardasil 9
Biological Merck Sharp & Dohme LLC $40.99 2 2025
Source payment records
TZIELD
Normalized: tzield
Biological SANOFI-AVENTIS U.S. LLC $40.95 2 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $38.37 2 2025
Source payment records
LEQVIO
Normalized: leqvio
Drug Novartis Pharmaceuticals Corporation $36.86 2 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $35.25 2 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $30.77 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $30.77 1 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $23.85 1 2025
Source payment records
FFRct
Normalized: ffrct
Device HEARTFLOW, INC. $23.16 1 2025
Source payment records
Leqembi
Normalized: leqembi
Drug Eisai Inc. $22.64 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $20.09 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $19.45 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $16.76 1 2025
Source payment records
CONTRAVE
Normalized: contrave
Drug Currax Pharmaceuticals LLC $14.90 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $13.48 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
Ozempic
ozempic
2025 Ozempic 2024 25
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
70 14
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
34 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
11 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
25 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
Atorvastatin CalciumAtorvastatin Calcium31783
Levothyroxine SodiumLevothyroxine Sodium11229
Rosuvastatin CalciumRosuvastatin Calcium10335
Amlodipine BesylateAmlodipine Besylate9731
Olmesartan MedoxomilOlmesartan Medoxomil8723
EliquisApixaban7715
Losartan PotassiumLosartan Potassium7524
TemazepamTemazepam7512
HydrochlorothiazideHydrochlorothiazide7022
SynthroidLevothyroxine Sodium7014
Zolpidem TartrateZolpidem Tartrate6920
EzetimibeEzetimibe6012
AlprazolamAlprazolam5414
Metoprolol SuccinateMetoprolol Succinate5214
Tamsulosin HclTamsulosin Hcl5016
DiazepamDiazepam4312
ClonazepamClonazepam4012
AzithromycinAzithromycin3731
FarxigaDapagliflozin Propanediol34suppressed
Sertraline HclSertraline Hcl34suppressed
Duloxetine HclDuloxetine Hcl32suppressed
FurosemideFurosemide32suppressed
Pantoprazole SodiumPantoprazole Sodium32suppressed
SimvastatinSimvastatin31suppressed
AllopurinolAllopurinol29suppressed
Bupropion XlBupropion Hcl29suppressed
LisinoprilLisinopril29suppressed
Metoprolol TartrateMetoprolol Tartrate29suppressed
LorazepamLorazepam28suppressed
OzempicSemaglutide25suppressed
PaxlovidNirmatrelvir/Ritonavir2525
Escitalopram OxalateEscitalopram Oxalate24suppressed
GabapentinGabapentin23suppressed
Metformin HclMetformin Hcl22suppressed
PrednisonePrednisone22suppressed
Triamcinolone AcetonideTriamcinolone Acetonide22suppressed
AtenololAtenolol21suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18suppressed
ValacyclovirValacyclovir Hcl17suppressed
Montelukast SodiumMontelukast Sodium16suppressed
OlanzapineOlanzapine16suppressed
Tramadol HclTramadol Hcl16suppressed
CelecoxibCelecoxib15suppressed
Ipratropium BromideIpratropium Bromide15suppressed
OmeprazoleOmeprazole15suppressed
Testosterone CypionateTestosterone Cypionate14suppressed
TorsemideTorsemide14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav13suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide13suppressed
CarvedilolCarvedilol12suppressed
Ciprofloxacin HclCiprofloxacin Hcl12suppressed
MethylprednisoloneMethylprednisolone12suppressed
MyrbetriqMirabegron12suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
Trazodone HclTrazodone Hcl12suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril11suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa11suppressed
IbuprofenIbuprofen11suppressed
MirtazapineMirtazapine11suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen11suppressed
Potassium ChloridePotassium Chloride11suppressed
PregabalinPregabalin11suppressed
TrulicityDulaglutide11suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide11suppressed
Wixela InhubFluticasone Propion/Salmeterol11suppressed

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 $1,283.08 · 49 records Amgen Inc. AIRSUPRA, AREXVY, Auvelity, BREZTRI, CAPVAXIVE, CONTRAVE, Cologuard Collection Kit, FFRct, GARDASIL 9, GEMTESA, LEQVIO, Leqembi, MOUNJARO, OTEZLA, Ozempic, QULIPTA, REPATHA, REXULTI, Rybelsus, SHINGRIX, TEPEZZA, TZIELD, UBRELVY, VRAYLAR, Wegovy, ZEPBOUND 4
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