Healthcare provider profile · identity verified

Tiffany J Mcewan, ARNP

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · WATERLOO, IA · NPI 1972985232

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 J Mcewan, ARNP received $370.22 in general payments during 2025 across 10 reported records.

Novo Nordisk Inc accounted for 42.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Linzess 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 31 claims for Farxiga 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 49 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 70 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$370.22

10 reported records · 7 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 $155.5942.0%32025
VERTEX PHARMACEUTICALS INCORPORATED Unresolved — no canonical attribution shown $91.6924.8%22025
Insulet Corporation Unresolved — no canonical attribution shown $45.4812.3%12025
PFIZER INC. Unresolved — no canonical attribution shown $26.757.2%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $18.885.1%12025
ABBVIE INC. Unresolved — no canonical attribution shown $17.674.8%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $14.163.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$370.2210

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
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $138.76 2 2025
Source payment records
OMNIPOD
Normalized: omnipod
Device Insulet Corporation $45.48 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $26.75 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $26.75 1 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $18.88 1 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $17.67 1 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $17.67 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $17.63 1 2025
Source payment records
JOURNAVX
Normalized: journavx
Drug VERTEX PHARMACEUTICALS INCORPORATED $17.36 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $16.83 1 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $14.16 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 49 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
13 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
31 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
49 13
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
70 17

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 Calcium36998
Levothyroxine SodiumLevothyroxine Sodium36985
OmeprazoleOmeprazole26269
Amlodipine BesylateAmlodipine Besylate20466
Metformin HclMetformin Hcl15339
Alendronate SodiumAlendronate Sodium14338
GabapentinGabapentin13936
Tramadol HclTramadol Hcl13632
JardianceEmpagliflozin12520
Metoprolol SuccinateMetoprolol Succinate12128
HydrochlorothiazideHydrochlorothiazide11629
Pantoprazole SodiumPantoprazole Sodium11636
LisinoprilLisinopril11433
SimvastatinSimvastatin11231
FurosemideFurosemide9821
Fluticasone PropionateFluticasone Propionate9536
MeloxicamMeloxicam9530
Rosuvastatin CalciumRosuvastatin Calcium9126
Losartan PotassiumLosartan Potassium8926
Bupropion XlBupropion Hcl8715
Tizanidine HclTizanidine Hcl7928
Citalopram HbrCitalopram Hydrobromide7817
Albuterol Sulfate HfaAlbuterol Sulfate7432
Venlafaxine Hcl ErVenlafaxine Hcl72suppressed
EliquisApixaban7017
Potassium ChloridePotassium Chloride7019
Cyclobenzaprine HclCyclobenzaprine Hcl6918
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6917
AlprazolamAlprazolam6013
Escitalopram OxalateEscitalopram Oxalate5818
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide5819
PregabalinPregabalin58suppressed
Trazodone HclTrazodone Hcl5715
Metformin Hcl ErMetformin Hcl5518
Tamsulosin HclTamsulosin Hcl54suppressed
FamotidineFamotidine5319
Pravastatin SodiumPravastatin Sodium5214
Azelastine HclAzelastine Hcl5125
Metoprolol TartrateMetoprolol Tartrate4916
OzempicSemaglutide4913
Montelukast SodiumMontelukast Sodium4811
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen47suppressed
Duloxetine HclDuloxetine Hcl45suppressed
BaclofenBaclofen43suppressed
FluconazoleFluconazole4223
Oxybutynin Chloride ErOxybutynin Chloride3811
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide37suppressed
Triamcinolone AcetonideTriamcinolone Acetonide3718
ClopidogrelClopidogrel Bisulfate3411
XareltoRivaroxaban32suppressed
Zolpidem TartrateZolpidem Tartrate32suppressed
FarxigaDapagliflozin Propanediol31suppressed
IrbesartanIrbesartan31suppressed
BumetanideBumetanide29suppressed
TrulicityDulaglutide29suppressed
LorazepamLorazepam28suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2825
NystatinNystatin28suppressed
Buspirone HclBuspirone Hcl2711
PrednisonePrednisone2719
LevetiracetamLevetiracetam26suppressed
SpironolactoneSpironolactone26suppressed
Diclofenac SodiumDiclofenac Sodium2511
Donepezil HclDonepezil Hcl25suppressed
Propranolol HclPropranolol Hcl25suppressed
Warfarin SodiumWarfarin Sodium25suppressed
JanuviaSitagliptin Phosphate24suppressed
LovastatinLovastatin24suppressed
Dexlansoprazole DrDexlansoprazole23suppressed
AcyclovirAcyclovir22suppressed
Boostrix TdapDiphth,pertuss(Acell),tet Vac2222
EstradiolEstradiol22suppressed
HydrocortisoneHydrocortisone22suppressed
IbuprofenIbuprofen21suppressed
Paroxetine HclParoxetine Hcl21suppressed
Sertraline HclSertraline Hcl21suppressed
AllopurinolAllopurinol20suppressed
MirtazapineMirtazapine19suppressed
MounjaroTirzepatide19suppressed
AtenololAtenolol18suppressed
CelecoxibCelecoxib18suppressed
Glipizide ErGlipizide18suppressed
TopiramateTopiramate18suppressed
LansoprazoleLansoprazole17suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog17suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1614
TrulancePlecanatide16suppressed
Amitriptyline HclAmitriptyline Hcl15suppressed
ClonazepamClonazepam15suppressed
EzetimibeEzetimibe15suppressed
FenofibrateFenofibrate Nanocrystallized15suppressed
MupirocinMupirocin15suppressed
NystopNystatin15suppressed
Olmesartan MedoxomilOlmesartan Medoxomil15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril14suppressed
FinasterideFinasteride14suppressed
Oxybutynin ChlorideOxybutynin Chloride14suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf14suppressed
Solifenacin SuccinateSolifenacin Succinate14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
ElinestNorgestrel-Ethinyl Estradiol13suppressed
Ezetimibe-SimvastatinEzetimibe/Simvastatin13suppressed
Fosfomycin TromethamineFosfomycin Tromethamine13suppressed
GlimepirideGlimepiride13suppressed
LinzessLinaclotide13suppressed
MethylprednisoloneMethylprednisolone1312
NabumetoneNabumetone13suppressed
Ondansetron HclOndansetron Hcl13suppressed
ValacyclovirValacyclovir Hcl13suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide13suppressed
BelsomraSuvorexant12suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
Fluoxetine HclFluoxetine Hcl12suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol12suppressed
Lurasidone HclLurasidone Hcl12suppressed
NitrofurantoinNitrofurantoin Macrocrystal12suppressed
Ondansetron OdtOndansetron12suppressed
RivastigmineRivastigmine12suppressed
SimbrinzaBrinzolamide/Brimonidine Tart12suppressed
Spiriva RespimatTiotropium Bromide12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
CephalexinCephalexin1111
GemfibrozilGemfibrozil11suppressed
KetoconazoleKetoconazole11suppressed
MethotrexateMethotrexate Sodium11suppressed
Propranolol Hcl ErPropranolol Hcl11suppressed
SotalolSotalol Hcl11suppressed
Sumatriptan SuccinateSumatriptan Succinate11suppressed
TradjentaLinagliptin11suppressed

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 $370.22 · 10 records Novo Nordisk Inc AIRSUPRA, COMIRNATY, JOURNAVX, OMNIPOD, Ozempic, PREVNAR 20, QULIPTA, Rybelsus, The Cologuard Plus Collection Kit, UBRELVY, Wegovy 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