Healthcare provider profile · identity verified

Nitai Riegler, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease · MILFORD, CT · NPI 1225124514

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 Nitai Riegler, MD received $374.21 in general payments during 2025 across 4 reported records.

Lilly USA, LLC accounted for 32.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

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 61 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 24 claims for Symbicort 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 55 claims for Jardiance by this doctor in 2024.

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

Payment overview · 2025

General Payments

$374.21

4 reported records · 4 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
Lilly USA, LLC Unresolved — no canonical attribution shown $122.8832.8%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $120.1732.1%12025
Verona Pharma, Inc. Unresolved — no canonical attribution shown $113.2830.3%12025
Dexcom, Inc. Unresolved — no canonical attribution shown $17.884.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$374.214

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
ZEPBOUND
Normalized: zepbound
Drug Lilly USA, LLC $122.88 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $120.17 1 2025
Source payment records
Ohtuvayre
Normalized: ohtuvayre
Drug Verona Pharma, Inc. $113.28 1 2025
Source payment records
Dexcom G6 Transmitter
Normalized: dexcom g6 transmitter
Medical Supply Dexcom, Inc. $17.88 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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 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
61 16
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
24 suppressed by CMS
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
55 13

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
Losartan PotassiumLosartan Potassium25783
Rosuvastatin CalciumRosuvastatin Calcium24685
Amlodipine BesylateAmlodipine Besylate22462
Albuterol Sulfate HfaAlbuterol Sulfate19969
Atorvastatin CalciumAtorvastatin Calcium18652
Pravastatin SodiumPravastatin Sodium18257
GabapentinGabapentin17747
Levothyroxine SodiumLevothyroxine Sodium16448
LisinoprilLisinopril15241
Metformin HclMetformin Hcl11234
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11024
Metoprolol SuccinateMetoprolol Succinate10236
Duloxetine HclDuloxetine Hcl10134
OzempicSemaglutide9917
Montelukast SodiumMontelukast Sodium9632
Olmesartan MedoxomilOlmesartan Medoxomil8226
AlprazolamAlprazolam7814
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr7615
Pantoprazole SodiumPantoprazole Sodium7624
ClonazepamClonazepam7514
Zolpidem TartrateZolpidem Tartrate63suppressed
FarxigaDapagliflozin Propanediol6116
AzithromycinAzithromycin5949
FurosemideFurosemide5716
OmeprazoleOmeprazole5718
JardianceEmpagliflozin5513
Breztri AerosphereBudesonide/Glycopyr/Formoterol5112
EliquisApixaban5112
RybelsusSemaglutide5112
Nebivolol HclNebivolol Hcl5014
Citalopram HbrCitalopram Hydrobromide4914
MirtazapineMirtazapine4819
HydrochlorothiazideHydrochlorothiazide4721
MeloxicamMeloxicam4618
IrbesartanIrbesartan4416
SynthroidLevothyroxine Sodium4311
Alendronate SodiumAlendronate Sodium42suppressed
AllopurinolAllopurinol4213
Tamsulosin HclTamsulosin Hcl4213
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride4011
ValsartanValsartan4011
MethocarbamolMethocarbamol3911
Trazodone HclTrazodone Hcl3811
Bupropion XlBupropion Hcl37suppressed
EzetimibeEzetimibe3713
Tizanidine HclTizanidine Hcl37suppressed
Metoprolol TartrateMetoprolol Tartrate3511
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med31suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl30suppressed
Escitalopram OxalateEscitalopram Oxalate27suppressed
SimvastatinSimvastatin2712
RoflumilastRoflumilast26suppressed
Sertraline HclSertraline Hcl26suppressed
Bisoprolol FumarateBisoprolol Fumarate25suppressed
MethylprednisoloneMethylprednisolone2521
Potassium ChloridePotassium Chloride25suppressed
Benazepril HclBenazepril Hcl24suppressed
PrednisonePrednisone24suppressed
SymbicortBudesonide/Formoterol Fumarate24suppressed
Wixela InhubFluticasone Propion/Salmeterol24suppressed
LorazepamLorazepam23suppressed
Pioglitazone HclPioglitazone Hcl23suppressed
Metformin Hcl ErMetformin Hcl21suppressed
CarvedilolCarvedilol20suppressed
ClopidogrelClopidogrel Bisulfate20suppressed
Dexlansoprazole DrDexlansoprazole20suppressed
Synjardy XrEmpagliflozin/Metformin Hcl20suppressed
ValacyclovirValacyclovir Hcl20suppressed
Donepezil HclDonepezil Hcl19suppressed
Hydroxyzine HclHydroxyzine Hcl19suppressed
PregabalinPregabalin19suppressed
Paroxetine HclParoxetine Hcl18suppressed
AtenololAtenolol17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl17suppressed
Hydroxyzine PamoateHydroxyzine Pamoate17suppressed
SpironolactoneSpironolactone17suppressed
Fluticasone PropionateFluticasone Propionate16suppressed
Ipratropium BromideIpratropium Bromide16suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1614
NystatinNystatin1611
Buspirone HclBuspirone Hcl15suppressed
DiazepamDiazepam15suppressed
FamotidineFamotidine15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide15suppressed
VascepaIcosapent Ethyl15suppressed
Pilocarpine HclPilocarpine Hcl14suppressed
Raloxifene HclRaloxifene Hcl14suppressed
Venlafaxine Hcl ErVenlafaxine Hcl14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1311
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate13suppressed
Meclizine HclMeclizine Hcl13suppressed
Tramadol HclTramadol Hcl13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
Butalb-Acetaminoph-Caff-CodeinButalbit/Acetamin/Caff/Codeine12suppressed
Fluoxetine HclFluoxetine Hcl12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol12suppressed
Olmesartan-Amlodipine-HctzOlmesartan/Amlodipin/Hcthiazid12suppressed
Spiriva RespimatTiotropium Bromide12suppressed
TestosteroneTestosterone12suppressed
Diclofenac SodiumDiclofenac Sodium11suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog11suppressed
NamzaricMemantine Hcl/Donepezil Hcl11suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide11suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended11suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl11suppressed
TemazepamTemazepam11suppressed

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 $374.21 · 4 records Lilly USA, LLC AIRSUPRA, Dexcom G6 Transmitter, Ohtuvayre, ZEPBOUND 3
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