Healthcare provider profile · identity verified

Chad J Diamond, DO

Allopathic & Osteopathic Physicians|Family Medicine · HATTIESBURG, MS · NPI 1124023098

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 Chad J Diamond, DO received $722.11 in general payments during 2025 across 40 reported records.

ABBVIE INC. accounted for 31.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 19 associated products.

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

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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Linzess by this doctor in 2024.

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 55 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 50 claims for Farxiga 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 SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 33 claims for Symbicort 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 21 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

$722.11

40 reported records · 12 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
ABBVIE INC. Unresolved — no canonical attribution shown $224.4731.1%162025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $166.1123.0%72025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $127.2917.6%62025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $45.796.3%22025
Amgen Inc. Unresolved — no canonical attribution shown $32.534.5%22025
Exact Sciences Corporation Unresolved — no canonical attribution shown $21.252.9%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $19.792.7%12025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $18.452.6%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $18.122.5%12025
Esperion Therapeutics, Inc. Unresolved — no canonical attribution shown $16.662.3%12025
Lundbeck LLC Unresolved — no canonical attribution shown $16.442.3%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$15.212.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$722.1140

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
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $127.29 6 2025
Source payment records
  • 2025-01-21 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $20.49 · Open Payments source
  • 2025-02-18 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $21.56 · Open Payments source
  • 2025-04-02 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $22.19 · Open Payments source
  • 2025-05-05 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $22.07 · Open Payments source
  • 2025-05-20 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $22.06 · Open Payments source
  • 2025-06-16 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $18.92 · Open Payments source
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $116.16 5 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $105.32 6 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $105.32 6 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $105.03 3 2025
Source payment records
VRAYLAR
Normalized: vraylar
Drug ABBVIE INC. $99.51 9 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $45.79 2 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $21.25 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $19.79 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $19.79 1 2025
Source payment records
SYNTHROID
Normalized: synthroid
Drug ABBVIE INC. $19.64 1 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $18.45 1 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $18.12 1 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $16.76 1 2025
Source payment records
NEXLETOL
Normalized: nexletol
Drug Esperion Therapeutics, Inc. $16.66 1 2025
Source payment records
VYEPTI
Normalized: vyepti
Biological Lundbeck LLC $16.44 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $15.77 1 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $15.77 1 2025
Source payment records
INTELLIS ADAPTIVESTIM
Normalized: intellis adaptivestim
Device Medtronic, Inc. $15.21 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
FARXIGA
farxiga
2025 Farxiga 2024 50 exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 21
Beneficiary count suppressed
exact normalized Medicare Part D
SYNTHROID
synthroid
2025 Synthroid 2024 55 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 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
23 suppressed by CMS
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
55 11
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
50 12
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
33 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
21 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
Amlodipine BesylateAmlodipine Besylate500128
Levothyroxine SodiumLevothyroxine Sodium497112
Atorvastatin CalciumAtorvastatin Calcium420123
Rosuvastatin CalciumRosuvastatin Calcium23764
GabapentinGabapentin20655
CarvedilolCarvedilol20152
MeloxicamMeloxicam18661
OmeprazoleOmeprazole18045
Pantoprazole SodiumPantoprazole Sodium17854
Potassium ChloridePotassium Chloride17454
Metformin HclMetformin Hcl17044
FurosemideFurosemide15452
LisinoprilLisinopril15441
Metoprolol SuccinateMetoprolol Succinate14638
Losartan PotassiumLosartan Potassium14249
Quetiapine FumarateQuetiapine Fumarate11120
Montelukast SodiumMontelukast Sodium10729
Olmesartan MedoxomilOlmesartan Medoxomil10224
GlimepirideGlimepiride9824
HydrochlorothiazideHydrochlorothiazide9529
Citalopram HbrCitalopram Hydrobromide9419
Venlafaxine Hcl ErVenlafaxine Hcl8916
Duloxetine HclDuloxetine Hcl8217
Tamsulosin HclTamsulosin Hcl7827
Trazodone HclTrazodone Hcl7619
ClopidogrelClopidogrel Bisulfate7525
AllopurinolAllopurinol7425
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide7417
Metoprolol TartrateMetoprolol Tartrate7420
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide7419
Diclofenac SodiumDiclofenac Sodium7228
Sertraline HclSertraline Hcl7017
Paroxetine HclParoxetine Hcl6918
Pravastatin SodiumPravastatin Sodium6918
FamotidineFamotidine6622
CefdinirCefdinir6353
SimvastatinSimvastatin6312
MounjaroTirzepatide6013
Albuterol Sulfate HfaAlbuterol Sulfate5718
Metformin Hcl ErMetformin Hcl5717
ValsartanValsartan5715
Fluoxetine HclFluoxetine Hcl5613
SynthroidLevothyroxine Sodium5511
TrulicityDulaglutide5411
Warfarin SodiumWarfarin Sodium52suppressed
FarxigaDapagliflozin Propanediol5012
Fluticasone PropionateFluticasone Propionate5019
PregabalinPregabalin5011
Tramadol HclTramadol Hcl5011
JanuviaSitagliptin Phosphate45suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4515
NitrofurantoinNitrofurantoin Macrocrystal4337
Ciprofloxacin HclCiprofloxacin Hcl4234
IrbesartanIrbesartan4111
Isosorbide Mononitrate ErIsosorbide Mononitrate39suppressed
Risedronate SodiumRisedronate Sodium39suppressed
EliquisApixaban38suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide38suppressed
JardianceEmpagliflozin3611
Amitriptyline HclAmitriptyline Hcl3413
Doxycycline HyclateDoxycycline Hyclate3432
Pramipexole DihydrochloridePramipexole Di-Hcl34suppressed
Alendronate SodiumAlendronate Sodium3311
Escitalopram OxalateEscitalopram Oxalate3312
SymbicortBudesonide/Formoterol Fumarate33suppressed
CelecoxibCelecoxib3013
Nifedipine ErNifedipine30suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2913
MethylprednisoloneMethylprednisolone2924
Ondansetron OdtOndansetron2815
Zolpidem TartrateZolpidem Tartrate27suppressed
LinzessLinaclotide23suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2322
Diltiazem 24hr Er (Cd)Diltiazem Hcl22suppressed
SucralfateSucralfate2212
Bupropion XlBupropion Hcl21suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide21suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog21suppressed
OzempicSemaglutide21suppressed
BaclofenBaclofen20suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide20suppressed
LovastatinLovastatin20suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid20suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol19suppressed
IbuprofenIbuprofen19suppressed
KetoconazoleKetoconazole1915
Novolin 70-30Insulin Nph Hum/Reg Insulin Hm19suppressed
Tolterodine Tartrate ErTolterodine Tartrate19suppressed
Ondansetron HclOndansetron Hcl18suppressed
Tizanidine HclTizanidine Hcl18suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1813
ClonazepamClonazepam17suppressed
MetronidazoleMetronidazole1713
FluconazoleFluconazole16suppressed
SotalolSotalol Hcl16suppressed
SpironolactoneSpironolactone16suppressed
ValacyclovirValacyclovir Hcl15suppressed
TopiramateTopiramate14suppressed
CephalexinCephalexin1313
ClonidineClonidine13suppressed
Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine13suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium13suppressed
EzetimibeEzetimibe13suppressed
FenofibrateFenofibrate Nanocrystallized13suppressed
FinasterideFinasteride13suppressed
Fosinopril SodiumFosinopril Sodium13suppressed
Tresiba Flextouch U-200Insulin Degludec13suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog12suppressed
Diltiazem 24hr Er (La)Diltiazem Hcl12suppressed
Donepezil HclDonepezil Hcl12suppressed
Doxazosin MesylateDoxazosin Mesylate12suppressed
Klor-Con 10Potassium Chloride12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
LorazepamLorazepam12suppressed
TemazepamTemazepam12suppressed
Terbinafine HclTerbinafine Hcl12suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav11suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr11suppressed
AripiprazoleAripiprazole11suppressed
Bupropion HclBupropion Hcl11suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip1111
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
Dicyclomine HclDicyclomine Hcl11suppressed
DofetilideDofetilide11suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn11suppressed
NaproxenNaproxen11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
NystatinNystatin11suppressed
Oxybutynin Chloride ErOxybutynin Chloride11suppressed
Vilazodone HclVilazodone 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 $722.11 · 40 records ABBVIE INC. AIRSUPRA, Auvelity, CAPLYTA, Cologuard Collection Kit, EVENITY, FARXIGA, INTELLIS ADAPTIVESTIM, Kerendia, NEXLETOL, OTEZLA, Ozempic, QULIPTA, REPATHA, Rybelsus, SYNTHROID, UBRELVY, VRAYLAR, VYEPTI, XIFAXAN 5
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