Healthcare provider profile · identity verified

Gretchen K. Mello, MD

Internal Medicine · OAKLAND, CA · NPI 1841378635

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 Calcium300116
Levothyroxine SodiumLevothyroxine Sodium22268
Amlodipine BesylateAmlodipine Besylate19174
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen11930
LisinoprilLisinopril10945
Fluticasone PropionateFluticasone Propionate10743
GabapentinGabapentin10543
Losartan PotassiumLosartan Potassium10545
Albuterol Sulfate HfaAlbuterol Sulfate9345
AllopurinolAllopurinol9332
HydrochlorothiazideHydrochlorothiazide8735
LovastatinLovastatin7626
Alendronate SodiumAlendronate Sodium7127
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide6827
FamotidineFamotidine6734
Metoprolol TartrateMetoprolol Tartrate6625
Metformin Hcl ErMetformin Hcl5823
Fluoxetine HclFluoxetine Hcl5417
OmeprazoleOmeprazole5419
Pantoprazole SodiumPantoprazole Sodium5214
Metformin HclMetformin Hcl4822
Trazodone HclTrazodone Hcl4723
LorazepamLorazepam4615
FurosemideFurosemide4318
Bupropion XlBupropion Hcl42suppressed
Pravastatin SodiumPravastatin Sodium4213
Triamcinolone AcetonideTriamcinolone Acetonide4220
Tamsulosin HclTamsulosin Hcl4115
AcyclovirAcyclovir4018
AtenololAtenolol3815
Sertraline HclSertraline Hcl3813
SimvastatinSimvastatin3613
MeloxicamMeloxicam35suppressed
AlvescoCiclesonide3315
Oxycodone HclOxycodone Hcl33suppressed
Zolpidem TartrateZolpidem Tartrate31suppressed
IbuprofenIbuprofen2718
Ciprofloxacin HclCiprofloxacin Hcl2316
Metoprolol SuccinateMetoprolol Succinate2312
Sumatriptan SuccinateSumatriptan Succinate23suppressed
Acetaminophen-CodeineAcetaminophen With Codeine22suppressed
Citalopram HbrCitalopram Hydrobromide21suppressed
Doxycycline MonohydrateDoxycycline Monohydrate2117
Montelukast SodiumMontelukast Sodium21suppressed
Adacel TdapDiph,pertuss(Acell),tet Vac/Pf1919
Escitalopram OxalateEscitalopram Oxalate19suppressed
Retin-ATretinoin19suppressed
Wixela InhubFluticasone Propion/Salmeterol19suppressed
EstradiolEstradiol1812
FinasterideFinasteride18suppressed
PrednisonePrednisone1714
ChlorthalidoneChlorthalidone16suppressed
FluorouracilFluorouracil1614
ClonazepamClonazepam15suppressed
GlipizideGlipizide15suppressed
RisperidoneRisperidone15suppressed
SpironolactoneSpironolactone15suppressed
Terazosin HclTerazosin Hcl15suppressed
CephalexinCephalexin1412
Bupropion Hcl SrBupropion Hcl13suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine13suppressed
Duloxetine HclDuloxetine Hcl13suppressed
MethimazoleMethimazole13suppressed
OxazepamOxazepam13suppressed
Paroxetine HclParoxetine Hcl13suppressed
Spiriva RespimatTiotropium Bromide13suppressed
TemazepamTemazepam13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
Glipizide ErGlipizide12suppressed
Hydralazine HclHydralazine Hcl12suppressed
Memantine HclMemantine Hcl12suppressed
Nifedipine ErNifedipine12suppressed
Cefpodoxime ProxetilCefpodoxime Proxetil1111
Methadone HclMethadone Hcl11suppressed
PaxlovidNirmatrelvir/Ritonavir1111
ValacyclovirValacyclovir 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