Healthcare provider profile · identity verified

Mark D. Ellis, N.P.

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · JOHNSON CITY, TX · NPI 1508868530

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 Mark D. Ellis, N.P. received $15.72 in general payments during 2025 across 1 reported records.

Exact Sciences Corporation accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Payment overview · 2025

General Payments

$15.72

1 reported records · 1 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
Exact Sciences Corporation Unresolved — no canonical attribution shown $15.72100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$15.721

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
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $15.72 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.

None of this doctor’s payer companies has same-entity product evidence that passes the publication threshold. The site does not infer company ownership, affiliates, or generic manufacturers.

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
Levothyroxine SodiumLevothyroxine Sodium14743
Rosuvastatin CalciumRosuvastatin Calcium11533
PrednisonePrednisone11081
LisinoprilLisinopril10937
Atorvastatin CalciumAtorvastatin Calcium10432
Pantoprazole SodiumPantoprazole Sodium10436
Amlodipine BesylateAmlodipine Besylate10231
FamotidineFamotidine10142
Tramadol HclTramadol Hcl10133
OmeprazoleOmeprazole8428
Montelukast SodiumMontelukast Sodium8226
Trazodone HclTrazodone Hcl7830
Duloxetine HclDuloxetine Hcl7320
Losartan PotassiumLosartan Potassium7226
Metoprolol SuccinateMetoprolol Succinate7027
Bupropion XlBupropion Hcl6918
GabapentinGabapentin6826
HydrochlorothiazideHydrochlorothiazide5920
FurosemideFurosemide5825
Tamsulosin HclTamsulosin Hcl4917
Albuterol Sulfate HfaAlbuterol Sulfate4730
Escitalopram OxalateEscitalopram Oxalate4613
Metformin HclMetformin Hcl4415
Metformin Hcl ErMetformin Hcl4412
SimvastatinSimvastatin4415
Esomeprazole MagnesiumEsomeprazole Magnesium41suppressed
Azelastine HclAzelastine Hcl3824
ClonazepamClonazepam38suppressed
Ondansetron OdtOndansetron3620
OzempicSemaglutide35suppressed
Tizanidine HclTizanidine Hcl3412
Promethazine HclPromethazine Hcl3327
Tolterodine Tartrate ErTolterodine Tartrate33suppressed
Zolpidem TartrateZolpidem Tartrate33suppressed
AllopurinolAllopurinol32suppressed
NaproxenNaproxen3215
EzetimibeEzetimibe31suppressed
Sertraline HclSertraline Hcl30suppressed
Potassium ChloridePotassium Chloride2811
CefuroximeCefuroxime Axetil2721
MounjaroTirzepatide27suppressed
MupirocinMupirocin2718
Acetaminophen-CodeineAcetaminophen With Codeine2612
Cyclobenzaprine HclCyclobenzaprine Hcl26suppressed
Pravastatin SodiumPravastatin Sodium26suppressed
SynthroidLevothyroxine Sodium26suppressed
AlprazolamAlprazolam24suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2422
CarvedilolCarvedilol24suppressed
CelecoxibCelecoxib24suppressed
EstradiolEstradiol24suppressed
Hydroxyzine HclHydroxyzine Hcl2413
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide24suppressed
Oxybutynin Chloride ErOxybutynin Chloride24suppressed
Alendronate SodiumAlendronate Sodium23suppressed
Fluticasone PropionateFluticasone Propionate22suppressed
MeloxicamMeloxicam22suppressed
PregabalinPregabalin22suppressed
SpironolactoneSpironolactone22suppressed
Amitriptyline HclAmitriptyline Hcl21suppressed
Metoprolol TartrateMetoprolol Tartrate21suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2114
Pramipexole DihydrochloridePramipexole Di-Hcl20suppressed
Ropinirole HclRopinirole Hcl20suppressed
ValacyclovirValacyclovir Hcl2012
AzithromycinAzithromycin1919
Pioglitazone HclPioglitazone Hcl19suppressed
Memantine HclMemantine Hcl18suppressed
Benazepril HclBenazepril Hcl17suppressed
MethocarbamolMethocarbamol17suppressed
NystatinNystatin17suppressed
Olmesartan MedoxomilOlmesartan Medoxomil17suppressed
Carbidopa-LevodopaCarbidopa/Levodopa15suppressed
EliquisApixaban15suppressed
MirtazapineMirtazapine15suppressed
Bupropion Hcl SrBupropion Hcl14suppressed
FarxigaDapagliflozin Propanediol14suppressed
Fluoxetine HclFluoxetine Hcl14suppressed
TemazepamTemazepam14suppressed
CefdinirCefdinir1312
ClopidogrelClopidogrel Bisulfate13suppressed
MethylprednisoloneMethylprednisolone1311
Mometasone FuroateMometasone Furoate13suppressed
Doxycycline HyclateDoxycycline Hyclate12suppressed
IbuprofenIbuprofen12suppressed
PermethrinPermethrin12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
Citalopram HbrCitalopram Hydrobromide11suppressed
Eletriptan HbrEletriptan Hydrobromide11suppressed
JardianceEmpagliflozin11suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride11suppressed
Liothyronine SodiumLiothyronine Sodium11suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst11suppressed
RamiprilRamipril11suppressed
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 $15.72 · 1 records Exact Sciences Corporation The Cologuard Plus Collection Kit
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