Healthcare provider profile · identity verified

John E Turns, MD

Family Practice · CASTRO VALLEY, CA · NPI 1942371588

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 Calcium41356
Levothyroxine SodiumLevothyroxine Sodium25324
Divalproex SodiumDivalproex Sodium21626
Amlodipine BesylateAmlodipine Besylate21232
EliquisApixaban20216
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate18750
Metformin HclMetformin Hcl18427
Tamsulosin HclTamsulosin Hcl12726
GabapentinGabapentin11415
LevetiracetamLevetiracetam11117
Metoprolol TartrateMetoprolol Tartrate10818
Donepezil HclDonepezil Hcl10514
Ondansetron HclOndansetron Hcl9713
Sertraline HclSertraline Hcl9611
LisinoprilLisinopril8922
Quetiapine FumarateQuetiapine Fumarate8719
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen8012
ClopidogrelClopidogrel Bisulfate7911
Trazodone HclTrazodone Hcl7914
FurosemideFurosemide7114
Pantoprazole SodiumPantoprazole Sodium6914
Memantine HclMemantine Hcl68suppressed
Losartan PotassiumLosartan Potassium67suppressed
LactuloseLactulose6616
SimvastatinSimvastatin6411
BaclofenBaclofen58suppressed
RisperidoneRisperidone58suppressed
Valproic AcidValproic Acid (As Sodium Salt)54suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog50suppressed
LatanoprostLatanoprost4913
Hydralazine HclHydralazine Hcl4712
Fluoxetine HclFluoxetine Hcl46suppressed
OlanzapineOlanzapine45suppressed
Potassium ChloridePotassium Chloride43suppressed
CarvedilolCarvedilol4211
Escitalopram OxalateEscitalopram Oxalate41suppressed
FinasterideFinasteride41suppressed
AlprazolamAlprazolam40suppressed
Metoprolol SuccinateMetoprolol Succinate4011
XareltoRivaroxaban39suppressed
OmeprazoleOmeprazole3811
Albuterol SulfateAlbuterol Sulfate33suppressed
FamotidineFamotidine32suppressed
MirtazapineMirtazapine32suppressed
Rosuvastatin CalciumRosuvastatin Calcium32suppressed
Citalopram HbrCitalopram Hydrobromide31suppressed
JardianceEmpagliflozin30suppressed
LorazepamLorazepam30suppressed
Pravastatin SodiumPravastatin Sodium28suppressed
LantusInsulin Glargine,hum.Rec.Anlog27suppressed
BrilintaTicagrelor26suppressed
ClonazepamClonazepam26suppressed
FarxigaDapagliflozin Propanediol26suppressed
MyrbetriqMirabegron26suppressed
AtenololAtenolol25suppressed
Duloxetine HclDuloxetine Hcl25suppressed
TradjentaLinagliptin25suppressed
Albuterol Sulfate HfaAlbuterol Sulfate24suppressed
Bupropion XlBupropion Hcl24suppressed
DigoxinDigoxin24suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl24suppressed
Doxazosin MesylateDoxazosin Mesylate23suppressed
HydrochlorothiazideHydrochlorothiazide23suppressed
PentoxifyllinePentoxifylline23suppressed
ErtapenemErtapenem Sodium22suppressed
Humalog Kwikpen U-100Insulin Lispro22suppressed
AripiprazoleAripiprazole21suppressed
BreynaBudesonide/Formoterol Fumarate21suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog21suppressed
AllopurinolAllopurinol20suppressed
Oxycodone HclOxycodone Hcl20suppressed
Benztropine MesylateBenztropine Mesylate19suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1912
Carbidopa-LevodopaCarbidopa/Levodopa18suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate18suppressed
PrednisonePrednisone18suppressed
AmoxicillinAmoxicillin17suppressed
Amiodarone HclAmiodarone Hcl16suppressed
ArexvyRsvpref3 Antigen/As01e/Pf1616
LamotrigineLamotrigine16suppressed
SpironolactoneSpironolactone16suppressed
Timolol MaleateTimolol Maleate16suppressed
Tramadol HclTramadol Hcl16suppressed
CephalexinCephalexin15suppressed
SantylCollagenase Clostridium Hist.15suppressed
GlipizideGlipizide14suppressed
Glipizide-MetforminGlipizide/Metformin Hcl14suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)13suppressed
OxcarbazepineOxcarbazepine13suppressed
Ziprasidone HclZiprasidone Hcl13suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr12suppressed
Benazepril HclBenazepril Hcl12suppressed
Brimonidine TartrateBrimonidine Tartrate12suppressed
Donepezil Hcl OdtDonepezil Hcl12suppressed
FiaspInsulin Aspart (Niacinamide)12suppressed
HumalogInsulin Lispro12suppressed
LacosamideLacosamide12suppressed
Lurasidone HclLurasidone Hcl12suppressed
SotalolSotalol Hcl12suppressed
Valproic AcidValproic Acid12suppressed
GlycopyrrolateGlycopyrrolate11suppressed
JanuviaSitagliptin Phosphate11suppressed
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
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