Healthcare provider profile · identity verified

Stephen Tim Yip, D.O.

Family Practice · EL CAJON, CA · NPI 1841580263

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 Calcium551209
LisinoprilLisinopril277108
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen23260
Amlodipine BesylateAmlodipine Besylate22387
Levothyroxine SodiumLevothyroxine Sodium20078
Rosuvastatin CalciumRosuvastatin Calcium20085
Losartan PotassiumLosartan Potassium16367
AtenololAtenolol15159
OmeprazoleOmeprazole14369
HydrochlorothiazideHydrochlorothiazide13149
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide12749
Metformin HclMetformin Hcl12553
GabapentinGabapentin11950
Albuterol Sulfate HfaAlbuterol Sulfate11662
Metoprolol TartrateMetoprolol Tartrate11546
SimvastatinSimvastatin10849
Trazodone HclTrazodone Hcl10745
Tamsulosin HclTamsulosin Hcl9337
MeloxicamMeloxicam9042
GlipizideGlipizide8933
Terazosin HclTerazosin Hcl8728
Alendronate SodiumAlendronate Sodium8335
Metformin Hcl ErMetformin Hcl8339
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen7623
FamotidineFamotidine7528
Potassium ChloridePotassium Chloride7331
PradaxaDabigatran Etexilate Mesylate7328
ClopidogrelClopidogrel Bisulfate6928
Pantoprazole SodiumPantoprazole Sodium6625
AllopurinolAllopurinol6522
Sertraline HclSertraline Hcl6325
FurosemideFurosemide6127
Spiriva RespimatTiotropium Bromide5016
IbuprofenIbuprofen4722
JardianceEmpagliflozin4714
EzetimibeEzetimibe4519
PrednisonePrednisone4528
Triamcinolone AcetonideTriamcinolone Acetonide4423
Fluoxetine HclFluoxetine Hcl4318
Wixela InhubFluticasone Propion/Salmeterol3817
Acetaminophen-CodeineAcetaminophen With Codeine35suppressed
AcyclovirAcyclovir3111
EliquisApixaban31suppressed
Metoprolol SuccinateMetoprolol Succinate2915
ArexvyRsvpref3 Antigen/As01e/Pf2828
Citalopram HbrCitalopram Hydrobromide28suppressed
SpironolactoneSpironolactone2812
AlvescoCiclesonide2716
ChlorthalidoneChlorthalidone26suppressed
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml2611
OzempicSemaglutide25suppressed
Oxycodone HclOxycodone Hcl24suppressed
Tramadol HclTramadol Hcl23suppressed
Donepezil HclDonepezil Hcl22suppressed
EstradiolEstradiol2214
Humulin NInsulin Nph Human Isophane2214
Hydralazine HclHydralazine Hcl22suppressed
Stiolto RespimatTiotropium Br/Olodaterol Hcl22suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic21suppressed
LovastatinLovastatin19suppressed
AzithromycinAzithromycin1816
FinasterideFinasteride18suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide18suppressed
NitroglycerinNitroglycerin1812
Diltiazem 24hr Er (Cd)Diltiazem Hcl17suppressed
KetoconazoleKetoconazole17suppressed
TemazepamTemazepam17suppressed
Bupropion XlBupropion Hcl16suppressed
Clobetasol PropionateClobetasol Propionate16suppressed
CefadroxilCefadroxil1513
Duloxetine HclDuloxetine Hcl15suppressed
Midodrine HclMidodrine Hcl15suppressed
NaproxenNaproxen15suppressed
Ondansetron OdtOndansetron1511
TopiramateTopiramate15suppressed
FluorouracilFluorouracil1412
Fluticasone PropionateFluticasone Propionate14suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn14suppressed
Propranolol HclPropranolol Hcl14suppressed
Ropinirole HclRopinirole Hcl14suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1313
Azelastine HclAzelastine Hcl13suppressed
Clonidine HclClonidine Hcl13suppressed
LorazepamLorazepam13suppressed
Tizanidine HclTizanidine Hcl13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
DigoxinDigoxin12suppressed
Doxycycline MonohydrateDoxycycline Monohydrate1212
HydrocortisoneHydrocortisone12suppressed
Methadone HclMethadone Hcl12suppressed
Montelukast SodiumMontelukast Sodium12suppressed
ShingrixVaricella-Zoster Ge/As01b/Pf1212
Buspirone HclBuspirone Hcl11suppressed
Humulin RInsulin Regular, Human11suppressed
PrimidonePrimidone11suppressed

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