Healthcare provider profile · identity verified

Michael William Johnson, M.D.

Family Practice · VALENCIA, CA · NPI 1275590267

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 Calcium543165
Amlodipine BesylateAmlodipine Besylate347101
Losartan PotassiumLosartan Potassium25773
LisinoprilLisinopril19255
Levothyroxine SodiumLevothyroxine Sodium17550
Metformin HclMetformin Hcl15346
Metoprolol SuccinateMetoprolol Succinate14943
HydrochlorothiazideHydrochlorothiazide14239
SimvastatinSimvastatin12942
Tamsulosin HclTamsulosin Hcl11544
Pravastatin SodiumPravastatin Sodium10831
Metformin Hcl ErMetformin Hcl10333
GabapentinGabapentin9535
Rosuvastatin CalciumRosuvastatin Calcium8730
OmeprazoleOmeprazole7625
FurosemideFurosemide6821
Alendronate SodiumAlendronate Sodium6618
Fluticasone PropionateFluticasone Propionate6629
EliquisApixaban6316
FinasterideFinasteride6217
FamotidineFamotidine6024
Trazodone HclTrazodone Hcl5918
Zolpidem TartrateZolpidem Tartrate5812
AllopurinolAllopurinol5717
ValsartanValsartan5718
Albuterol Sulfate HfaAlbuterol Sulfate5625
Benazepril HclBenazepril Hcl5515
CarvedilolCarvedilol5519
Escitalopram OxalateEscitalopram Oxalate5518
Metoprolol TartrateMetoprolol Tartrate5016
JardianceEmpagliflozin4713
Potassium ChloridePotassium Chloride47suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4617
LorazepamLorazepam3914
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide38suppressed
Tramadol HclTramadol Hcl38suppressed
AtenololAtenolol35suppressed
Hydralazine HclHydralazine Hcl35suppressed
Pantoprazole SodiumPantoprazole Sodium3416
Duloxetine HclDuloxetine Hcl3311
Alfuzosin Hcl ErAlfuzosin Hcl32suppressed
AlprazolamAlprazolam31suppressed
EzetimibeEzetimibe3013
Glipizide ErGlipizide29suppressed
Diclofenac SodiumDiclofenac Sodium2816
GlipizideGlipizide2711
GlimepirideGlimepiride26suppressed
Triamcinolone AcetonideTriamcinolone Acetonide2615
FarxigaDapagliflozin Propanediol25suppressed
Nifedipine ErNifedipine25suppressed
TemazepamTemazepam25suppressed
Doxazosin MesylateDoxazosin Mesylate24suppressed
Terazosin HclTerazosin Hcl24suppressed
ClopidogrelClopidogrel Bisulfate23suppressed
IbuprofenIbuprofen23suppressed
JanuviaSitagliptin Phosphate23suppressed
OzempicSemaglutide23suppressed
Solifenacin SuccinateSolifenacin Succinate23suppressed
Bupropion Hcl SrBupropion Hcl22suppressed
Incruse ElliptaUmeclidinium Bromide22suppressed
Fluoxetine HclFluoxetine Hcl21suppressed
Montelukast SodiumMontelukast Sodium21suppressed
CelecoxibCelecoxib20suppressed
Citalopram HbrCitalopram Hydrobromide20suppressed
Repatha SyringeEvolocumab20suppressed
Clonidine HclClonidine Hcl19suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1918
NaproxenNaproxen1911
Sildenafil CitrateSildenafil Citrate19suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl18suppressed
Propranolol HclPropranolol Hcl18suppressed
SpironolactoneSpironolactone18suppressed
Azelastine HclAzelastine Hcl17suppressed
ChlorthalidoneChlorthalidone17suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide17suppressed
Meclizine HclMeclizine Hcl17suppressed
SynthroidLevothyroxine Sodium17suppressed
EstradiolEstradiol16suppressed
Olmesartan MedoxomilOlmesartan Medoxomil16suppressed
Propranolol Hcl ErPropranolol Hcl16suppressed
Acetaminophen-CodeineAcetaminophen With Codeine15suppressed
BaclofenBaclofen15suppressed
Nortriptyline HclNortriptyline Hcl15suppressed
Sertraline HclSertraline Hcl15suppressed
AcyclovirAcyclovir14suppressed
Amitriptyline HclAmitriptyline Hcl14suppressed
IrbesartanIrbesartan14suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
Pioglitazone HclPioglitazone Hcl14suppressed
Spiriva HandihalerTiotropium Bromide14suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide14suppressed
Buspirone HclBuspirone Hcl13suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol13suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride13suppressed
LovastatinLovastatin13suppressed
Mometasone FuroateMometasone Furoate13suppressed
MyrbetriqMirabegron13suppressed
Tizanidine HclTizanidine Hcl13suppressed
Quetiapine FumarateQuetiapine Fumarate12suppressed
RamiprilRamipril12suppressed
Testosterone CypionateTestosterone Cypionate12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
Ciprofloxacin HclCiprofloxacin Hcl11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
KetoconazoleKetoconazole11suppressed
MeloxicamMeloxicam11suppressed

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