Healthcare provider profile · identity verified

Tiffany Mark, M.D.

Family Practice · YAKIMA, WA · NPI 1144755919

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
Atorvastatin CalciumAtorvastatin Calcium367106
Levothyroxine SodiumLevothyroxine Sodium35191
Losartan PotassiumLosartan Potassium23762
LisinoprilLisinopril22876
OmeprazoleOmeprazole19164
Metoprolol SuccinateMetoprolol Succinate14045
Amlodipine BesylateAmlodipine Besylate13942
Metformin HclMetformin Hcl11331
Fluoxetine HclFluoxetine Hcl10120
Potassium ChloridePotassium Chloride9630
Rosuvastatin CalciumRosuvastatin Calcium8826
HydrochlorothiazideHydrochlorothiazide8430
Albuterol Sulfate HfaAlbuterol Sulfate8232
Trazodone HclTrazodone Hcl8225
SimvastatinSimvastatin7823
Citalopram HbrCitalopram Hydrobromide7423
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen7329
Alendronate SodiumAlendronate Sodium7220
FurosemideFurosemide7228
GabapentinGabapentin7225
Duloxetine HclDuloxetine Hcl7015
Cyclobenzaprine HclCyclobenzaprine Hcl6218
CarvedilolCarvedilol6115
Montelukast SodiumMontelukast Sodium5715
Pantoprazole SodiumPantoprazole Sodium5616
Bupropion XlBupropion Hcl4911
EliquisApixaban4912
Pravastatin SodiumPravastatin Sodium4913
AlprazolamAlprazolam48suppressed
Zolpidem TartrateZolpidem Tartrate46suppressed
CelecoxibCelecoxib4411
OzempicSemaglutide4413
Metformin Hcl ErMetformin Hcl4313
LorazepamLorazepam4212
Triamcinolone AcetonideTriamcinolone Acetonide4222
BaclofenBaclofen38suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3612
AllopurinolAllopurinol3413
Tamsulosin HclTamsulosin Hcl34suppressed
TrulicityDulaglutide34suppressed
ClonazepamClonazepam32suppressed
FamotidineFamotidine3213
AtenololAtenolol31suppressed
EstradiolEstradiol3111
NystatinNystatin3014
PregabalinPregabalin30suppressed
AripiprazoleAripiprazole29suppressed
Oxycodone HclOxycodone Hcl2911
Tramadol HclTramadol Hcl29suppressed
Venlafaxine Hcl ErVenlafaxine Hcl29suppressed
XareltoRivaroxaban29suppressed
Sertraline HclSertraline Hcl2811
MeloxicamMeloxicam26suppressed
Warfarin SodiumWarfarin Sodium25suppressed
Metoprolol TartrateMetoprolol Tartrate23suppressed
Oxybutynin ChlorideOxybutynin Chloride23suppressed
Prazosin HclPrazosin Hcl23suppressed
Ropinirole HclRopinirole Hcl22suppressed
SynthroidLevothyroxine Sodium21suppressed
GlimepirideGlimepiride20suppressed
PrednisonePrednisone2015
Fluticasone PropionateFluticasone Propionate19suppressed
MirtazapineMirtazapine19suppressed
Diclofenac SodiumDiclofenac Sodium18suppressed
LovastatinLovastatin18suppressed
SpironolactoneSpironolactone18suppressed
JardianceEmpagliflozin17suppressed
IrbesartanIrbesartan16suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide16suppressed
AzithromycinAzithromycin15suppressed
MethocarbamolMethocarbamol15suppressed
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen15suppressed
Sumatriptan SuccinateSumatriptan Succinate15suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl14suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol14suppressed
GlipizideGlipizide14suppressed
Hydromorphone HclHydromorphone Hcl14suppressed
Propranolol HclPropranolol Hcl14suppressed
ValacyclovirValacyclovir Hcl14suppressed
Ventolin HfaAlbuterol Sulfate14suppressed
Bupropion HclBupropion Hcl13suppressed
CreonLipase/Protease/Amylase13suppressed
Liothyronine SodiumLiothyronine Sodium13suppressed
Arnuity ElliptaFluticasone Furoate12suppressed
Benazepril HclBenazepril Hcl12suppressed
Bupropion Hcl SrBupropion Hcl12suppressed
CephalexinCephalexin12suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine12suppressed
EzetimibeEzetimibe12suppressed
Hydroxyzine HclHydroxyzine Hcl12suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12suppressed
Tizanidine HclTizanidine Hcl12suppressed
AcyclovirAcyclovir11suppressed
Armour ThyroidThyroid,pork11suppressed
Olmesartan MedoxomilOlmesartan Medoxomil11suppressed
Tolterodine Tartrate ErTolterodine Tartrate11suppressed
Verapamil ErVerapamil Hcl11suppressed

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