Healthcare provider profile · identity verified

Tiffany Eileen Groen, D.O.

Allopathic & Osteopathic Physicians|Family Medicine · NEW LENOX, IL · NPI 1609019538

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 Tiffany Eileen Groen, D.O. received $1,187.50 in general payments during 2025 across 52 reported records.

Novo Nordisk Inc accounted for 20.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 25 associated products.

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

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 23 claims for Synthroid by this doctor in 2024.

Astellas Pharma US 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 Myrbetriq as an associated drug or biological on 16 records involving 16 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Myrbetriq 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 22 claims for Farxiga 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 32 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 32 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 57 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 19 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 57 claims for Ozempic 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 28 claims for Eliquis 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 PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Paxlovid by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,187.50

52 reported records · 15 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $242.6020.4%112025
Phathom Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $223.0118.8%82025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $126.5710.7%62025
Astellas Pharma US Inc Unresolved — no canonical attribution shown $122.7110.3%52025
PFIZER INC. Unresolved — no canonical attribution shown $92.227.8%42025
Exact Sciences Corporation Unresolved — no canonical attribution shown $74.936.3%32025
ABBVIE INC. Unresolved — no canonical attribution shown $55.854.7%22025
Lilly USA, LLC Unresolved — no canonical attribution shown $51.834.4%32025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $47.444.0%32025
Corcept Therapeutics Unresolved — no canonical attribution shown $42.743.6%22025
Viatris Specialty LLC Unresolved — no canonical attribution shown $26.572.2%12025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $24.222.0%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $22.421.9%12025
Inspire Medical Systems, Inc. Unresolved — no canonical attribution shown $20.801.8%12025
IBSA Pharma Inc. Unresolved — no canonical attribution shown $13.591.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,187.5052

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
VOQUEZNA
Normalized: voquezna
Drug Phathom Pharmaceuticals, Inc. $223.01 8 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $126.57 6 2025
Source payment records
Veozah
Normalized: veozah
Drug Astellas Pharma US Inc $122.71 5 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $78.88 4 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $76.04 3 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $76.04 3 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $74.93 3 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $73.79 3 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $47.44 3 2025
Source payment records
  • 2025-02-12 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $16.21 · Open Payments source
  • 2025-04-02 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $14.66 · Open Payments source
  • 2025-11-24 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $16.57 · Open Payments source
Korlym
Normalized: korlym
Drug Corcept Therapeutics $42.74 2 2025
Source payment records
MOUNJARO
Normalized: mounjaro
Drug Lilly USA, LLC $38.05 2 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Boehringer Ingelheim Pharmaceuticals, Inc., Lilly USA, LLC $38.00 2 2025
Source payment records
CREON
Normalized: creon
Drug ABBVIE INC. $28.81 1 2025
Source payment records
LINZESS
Normalized: linzess
Drug ABBVIE INC. $28.81 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $27.04 1 2025
Source payment records
YUPELRI
Normalized: yupelri
Drug Viatris Specialty LLC $26.57 1 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $23.39 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $22.42 1 2025
Source payment records
INSPIRE
Normalized: inspire
Device Inspire Medical Systems, Inc. $20.80 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $18.43 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $18.43 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $18.43 1 2025
Source payment records
Flector
Normalized: flector
Drug IBSA Pharma Inc. $13.59 1 2025
Source payment records
Licart
Normalized: licart
Drug IBSA Pharma Inc. $13.59 1 2025
Source payment records
Tirosint
Normalized: tirosint
Drug IBSA Pharma Inc. $13.59 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 32
Beneficiary count suppressed
exact normalized Medicare Part D
MOUNJARO
mounjaro
2025 Mounjaro 2024 57
Beneficiary count suppressed
exact normalized Medicare Part D
Ozempic
ozempic
2025 Ozempic 2024 57 exact normalized Medicare Part D
PAXLOVID
paxlovid
2025 Paxlovid 2024 12 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
23 suppressed by CMS
Astellas Pharma US Inc
Exact reporting entity; no affiliate inference
2025 Myrbetriq
open payments reported associated product
CMS Open Payments — General Payments
16 supporting records · 16 recipient NPIs · example record 1238599014
Myrbetriq · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
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
22 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
32 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
32 suppressed by CMS
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
57 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
19 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
57 11
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
28 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
12 12

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 Calcium322109
Levothyroxine SodiumLevothyroxine Sodium30887
Losartan PotassiumLosartan Potassium18956
Amlodipine BesylateAmlodipine Besylate18759
LisinoprilLisinopril16146
SimvastatinSimvastatin14438
HydrochlorothiazideHydrochlorothiazide12537
Metoprolol SuccinateMetoprolol Succinate11838
Pantoprazole SodiumPantoprazole Sodium11837
AlprazolamAlprazolam10331
Rosuvastatin CalciumRosuvastatin Calcium10132
GabapentinGabapentin10032
Metformin HclMetformin Hcl8429
OmeprazoleOmeprazole8435
FamotidineFamotidine7527
Duloxetine HclDuloxetine Hcl7223
Trazodone HclTrazodone Hcl7017
Venlafaxine Hcl ErVenlafaxine Hcl6914
Montelukast SodiumMontelukast Sodium6620
Fluticasone PropionateFluticasone Propionate6520
Escitalopram OxalateEscitalopram Oxalate6218
Potassium ChloridePotassium Chloride6117
Alendronate SodiumAlendronate Sodium5922
MounjaroTirzepatide57suppressed
OzempicSemaglutide5711
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5615
Sertraline HclSertraline Hcl5618
Albuterol Sulfate HfaAlbuterol Sulfate5229
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5213
Pravastatin SodiumPravastatin Sodium5015
Tamsulosin HclTamsulosin Hcl4919
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4814
FurosemideFurosemide4720
AllopurinolAllopurinol4513
MeloxicamMeloxicam4416
Olmesartan MedoxomilOlmesartan Medoxomil4413
IrbesartanIrbesartan4312
ChlorthalidoneChlorthalidone4113
ClopidogrelClopidogrel Bisulfate4013
Metoprolol TartrateMetoprolol Tartrate4013
Metformin Hcl ErMetformin Hcl3812
Oxybutynin Chloride ErOxybutynin Chloride3711
Tramadol HclTramadol Hcl3515
JardianceEmpagliflozin32suppressed
Zolpidem TartrateZolpidem Tartrate32suppressed
Bupropion XlBupropion Hcl31suppressed
Ibandronate SodiumIbandronate Sodium31suppressed
MyrbetriqMirabegron29suppressed
EliquisApixaban28suppressed
AtenololAtenolol27suppressed
Breo ElliptaFluticasone/Vilanterol27suppressed
MirtazapineMirtazapine27suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid27suppressed
EzetimibeEzetimibe2612
GlimepirideGlimepiride26suppressed
Acetaminophen-CodeineAcetaminophen With Codeine25suppressed
Amitriptyline HclAmitriptyline Hcl25suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog25suppressed
CelecoxibCelecoxib24suppressed
FenofibrateFenofibrate23suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic23suppressed
PregabalinPregabalin23suppressed
Solifenacin SuccinateSolifenacin Succinate23suppressed
SynthroidLevothyroxine Sodium23suppressed
FarxigaDapagliflozin Propanediol22suppressed
JanuviaSitagliptin Phosphate22suppressed
PrednisonePrednisone2218
Propranolol Hcl ErPropranolol Hcl22suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2219
Cyclobenzaprine HclCyclobenzaprine Hcl21suppressed
LovastatinLovastatin21suppressed
NaproxenNaproxen21suppressed
Tresiba Flextouch U-200Insulin Degludec21suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol20suppressed
LorazepamLorazepam19suppressed
Paroxetine HclParoxetine Hcl19suppressed
TrulicityDulaglutide19suppressed
Bupropion Hcl SrBupropion Hcl18suppressed
Oxycodone HclOxycodone Hcl18suppressed
Tizanidine HclTizanidine Hcl18suppressed
Fluoxetine HclFluoxetine Hcl17suppressed
TemazepamTemazepam17suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril16suppressed
Buspirone HclBuspirone Hcl16suppressed
Verapamil ErVerapamil Hcl16suppressed
Glipizide ErGlipizide15suppressed
GlyxambiEmpagliflozin/Linagliptin15suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog15suppressed
Meclizine HclMeclizine Hcl15suppressed
MethylprednisoloneMethylprednisolone1515
NystopNystatin15suppressed
Ropinirole HclRopinirole Hcl15suppressed
SucralfateSucralfate15suppressed
XareltoRivaroxaban14suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1312
Benazepril HclBenazepril Hcl13suppressed
CarvedilolCarvedilol13suppressed
GlipizideGlipizide13suppressed
Propranolol HclPropranolol Hcl13suppressed
RamiprilRamipril13suppressed
Varenicline TartrateVarenicline Tartrate13suppressed
Bisoprolol-HydrochlorothiazideBisoprolol/Hydrochlorothiazide12suppressed
Citalopram HbrCitalopram Hydrobromide12suppressed
Donepezil HclDonepezil Hcl12suppressed
Irbesartan-HydrochlorothiazideIrbesartan/Hydrochlorothiazide12suppressed
Janumet XrSitagliptin Phos/Metformin Hcl12suppressed
LansoprazoleLansoprazole12suppressed
Olmesartan-HydrochlorothiazideOlmesartan/Hydrochlorothiazide12suppressed
PaxlovidNirmatrelvir/Ritonavir1212
PremarinEstrogens, Conjugated12suppressed
SpironolactoneSpironolactone12suppressed
Tresiba Flextouch U-100Insulin Degludec12suppressed
ValacyclovirValacyclovir Hcl12suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide12suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride11suppressed
Norethindrone-E.Estradiol-IronNorethindrone-E.Estradiol-Iron11suppressed
TopiramateTopiramate11suppressed

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 $1,187.50 · 52 records Novo Nordisk Inc ABRYSVO, AIRSUPRA, Auvelity, COMIRNATY, CREON, Flector, INSPIRE, JARDIANCE, Korlym, LINZESS, Licart, MOUNJARO, NURTEC ODT, Ozempic, PAXLOVID, PREVNAR 20, Rybelsus, The Cologuard Plus Collection Kit, Tirosint, UBRELVY, VOQUEZNA, Veozah, Wegovy, XIFAXAN, YUPELRI 10
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