Healthcare provider profile · identity verified

Hieu Thuan Phan, MD

Family Practice · REDLANDS, CA · NPI 1053549931

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 Calcium497259
Amlodipine BesylateAmlodipine Besylate259150
LisinoprilLisinopril214116
Rosuvastatin CalciumRosuvastatin Calcium186100
Albuterol Sulfate HfaAlbuterol Sulfate185111
Levothyroxine SodiumLevothyroxine Sodium177104
Losartan PotassiumLosartan Potassium169103
Metformin HclMetformin Hcl16973
Pantoprazole SodiumPantoprazole Sodium15364
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12866
GlipizideGlipizide12061
MeloxicamMeloxicam11868
GabapentinGabapentin11458
SimvastatinSimvastatin11253
OmeprazoleOmeprazole10672
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen10044
IbuprofenIbuprofen9764
Terazosin HclTerazosin Hcl9734
AllopurinolAllopurinol9342
FurosemideFurosemide9350
OzempicSemaglutide9126
Metoprolol TartrateMetoprolol Tartrate9052
Montelukast SodiumMontelukast Sodium9043
AtenololAtenolol8959
FinasterideFinasteride8837
Metformin Hcl ErMetformin Hcl8849
Potassium ChloridePotassium Chloride8752
HydrochlorothiazideHydrochlorothiazide8653
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide7840
Tamsulosin HclTamsulosin Hcl7837
PradaxaDabigatran Etexilate Mesylate7039
Trazodone HclTrazodone Hcl6940
Bisoprolol FumarateBisoprolol Fumarate6430
Alendronate SodiumAlendronate Sodium6034
Triamcinolone AcetonideTriamcinolone Acetonide5936
BaclofenBaclofen5430
Tramadol HclTramadol Hcl5227
Humulin NInsulin Nph Human Isophane4520
FamotidineFamotidine4424
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml4415
Ondansetron OdtOndansetron4324
Sertraline HclSertraline Hcl4325
Nano 2nd Gen Pen NeedlePen Needle, Diabetic3924
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen3813
SpironolactoneSpironolactone3823
JardianceEmpagliflozin3621
LactuloseLactulose35suppressed
PrednisonePrednisone3519
Buspirone HclBuspirone Hcl3416
AlprazolamAlprazolam3212
Duloxetine HclDuloxetine Hcl3219
EzetimibeEzetimibe3215
Fluoxetine HclFluoxetine Hcl3215
ClopidogrelClopidogrel Bisulfate3019
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst3026
Azelastine HclAzelastine Hcl2814
CarvedilolCarvedilol2713
Metoprolol SuccinateMetoprolol Succinate2711
Spiriva RespimatTiotropium Bromide2711
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid2716
Wixela InhubFluticasone Propion/Salmeterol2713
ColchicineColchicine2518
LorazepamLorazepam2516
Warfarin SodiumWarfarin Sodium24suppressed
Pravastatin SodiumPravastatin Sodium2311
AcyclovirAcyclovir2211
Bupropion XlBupropion Hcl2211
Humulin N KwikpenInsulin Nph Human Isophane22suppressed
Zolpidem TartrateZolpidem Tartrate21suppressed
Humulin RInsulin Regular, Human19suppressed
Hydralazine HclHydralazine Hcl1914
HydrocortisoneHydrocortisone1914
Terbinafine HclTerbinafine Hcl1911
Oxybutynin Chloride ErOxybutynin Chloride1811
Sumatriptan SuccinateSumatriptan Succinate18suppressed
Acetaminophen-CodeineAcetaminophen With Codeine17suppressed
BreynaBudesonide/Formoterol Fumarate17suppressed
Bupropion Hcl SrBupropion Hcl17suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl17suppressed
FenofibrateFenofibrate17suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
Escitalopram OxalateEscitalopram Oxalate1612
Insulin Glargine-YfgnInsulin Glargine-Yfgn16suppressed
MethocarbamolMethocarbamol16suppressed
EstradiolEstradiol15suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl15suppressed
Propranolol HclPropranolol Hcl15suppressed
RizatriptanRizatriptan Benzoate15suppressed
Memantine HclMemantine Hcl14suppressed
Morphine Sulfate ErMorphine Sulfate14suppressed
Paroxetine HclParoxetine Hcl14suppressed
Divalproex SodiumDivalproex Sodium13suppressed
Fluticasone PropionateFluticasone Propionate13suppressed
PregabalinPregabalin13suppressed
TadalafilTadalafil13suppressed
AlvescoCiclesonide12suppressed
Doxycycline MonohydrateDoxycycline Monohydrate12suppressed
EliquisApixaban12suppressed
FluconazoleFluconazole12suppressed
MirtazapineMirtazapine12suppressed
Oxycodone HclOxycodone Hcl12suppressed
Veo Insulin SyringeSyringe And Needle,insulin,1ml12suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1111
AzithromycinAzithromycin11suppressed
OxazepamOxazepam11suppressed
TemazepamTemazepam11suppressed

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