Healthcare provider profile · identity verified

Megan Fontana Diffenbaugh, PHARMD, BCACP

Pharmacist · YADKINVILLE, NC · NPI 1467740332

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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
XareltoRivaroxaban25981
FarxigaDapagliflozin Propanediol17565
JardianceEmpagliflozin14554
OzempicSemaglutide14057
EliquisApixaban13139
Rosuvastatin CalciumRosuvastatin Calcium8929
Warfarin SodiumWarfarin Sodium7323
MounjaroTirzepatide6521
Trelegy ElliptaFluticasone/Umeclidin/Vilanter5322
Metformin Hcl ErMetformin Hcl5021
Atorvastatin CalciumAtorvastatin Calcium4919
RybelsusSemaglutide4919
SymbicortBudesonide/Formoterol Fumarate4617
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog4612
Albuterol Sulfate HfaAlbuterol Sulfate4215
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3413
Tresiba Flextouch U-200Insulin Degludec3412
LisinoprilLisinopril3311
Novolog FlexpenInsulin Aspart3213
Synjardy XrEmpagliflozin/Metformin Hcl32suppressed
Metoprolol SuccinateMetoprolol Succinate31suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/730suppressed
Metformin HclMetformin Hcl2911
Tresiba Flextouch U-100Insulin Degludec2912
Nano 2nd Gen Pen NeedlePen Needle, Diabetic2716
Omnipod Dash Pods (Gen 4)Insulin Pump Cart,cont Inf,bt27suppressed
Duloxetine HclDuloxetine Hcl26suppressed
GabapentinGabapentin26suppressed
Humalog Kwikpen U-100Insulin Lispro2611
Losartan PotassiumLosartan Potassium2612
Techlite Pen NeedlePen Needle, Diabetic2613
Breztri AerosphereBudesonide/Glycopyr/Formoterol2512
TrulicityDulaglutide25suppressed
Amlodipine BesylateAmlodipine Besylate22suppressed
EzetimibeEzetimibe22suppressed
Ondansetron HclOndansetron Hcl22suppressed
Repatha SureclickEvolocumab22suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr21suppressed
FurosemideFurosemide21suppressed
Levothyroxine SodiumLevothyroxine Sodium20suppressed
Pioglitazone HclPioglitazone Hcl20suppressed
Tamsulosin HclTamsulosin Hcl20suppressed
Armour ThyroidThyroid,pork19suppressed
EntrestoSacubitril/Valsartan19suppressed
Insulin LisproInsulin Lispro19suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl1912
ClopidogrelClopidogrel Bisulfate18suppressed
Montelukast SodiumMontelukast Sodium18suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide18suppressed
Spiriva RespimatTiotropium Bromide18suppressed
HumalogInsulin Lispro17suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro17suppressed
OmeprazoleOmeprazole16suppressed
Trazodone HclTrazodone Hcl16suppressed
Xigduo XrDapaglifloz Propaned/Metformin16suppressed
HydrochlorothiazideHydrochlorothiazide15suppressed
AllopurinolAllopurinol14suppressed
InvokanaCanagliflozin14suppressed
LinzessLinaclotide14suppressed
TradjentaLinagliptin13suppressed
CarvedilolCarvedilol12suppressed
Dicyclomine HclDicyclomine Hcl12suppressed
Potassium ChloridePotassium Chloride12suppressed
Solifenacin SuccinateSolifenacin Succinate12suppressed
Ventolin HfaAlbuterol Sulfate12suppressed
Buspirone HclBuspirone Hcl11suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip11suppressed
OmnarisCiclesonide11suppressed
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic11suppressed

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
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