Healthcare provider profile · identity verified

Melvin A Lopez, MD

Allopathic & Osteopathic Physicians|Family Medicine · PISMO BEACH, CA · NPI 1831419258

Profile state: payments and partd 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

CMS Open Payments records show Melvin A Lopez, MD received $40.45 in general payments during 2025 across 2 reported records.

Exact Sciences Corporation accounted for 58.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 4 associated products.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 44 claims for Eliquis by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 19 claims for Paxlovid by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$40.45

2 reported records · 2 companies

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.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Exact Sciences Corporation Unresolved — no canonical attribution shown $23.5258.1%12025
PFIZER INC. Unresolved — no canonical attribution shown $16.9341.9%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$40.452

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $23.52 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $16.93 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $16.93 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $16.93 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
44 14
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
19 19

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 Calcium489153
LisinoprilLisinopril406126
Amlodipine BesylateAmlodipine Besylate375112
Levothyroxine SodiumLevothyroxine Sodium29589
Metformin HclMetformin Hcl25279
Losartan PotassiumLosartan Potassium21867
OmeprazoleOmeprazole19967
OzempicSemaglutide17024
GabapentinGabapentin15661
Rosuvastatin CalciumRosuvastatin Calcium14745
HydrochlorothiazideHydrochlorothiazide14650
Metoprolol SuccinateMetoprolol Succinate14245
FurosemideFurosemide10431
SimvastatinSimvastatin10436
FarxigaDapagliflozin Propanediol10127
Amitriptyline HclAmitriptyline Hcl9630
Trazodone HclTrazodone Hcl9132
Escitalopram OxalateEscitalopram Oxalate9036
AllopurinolAllopurinol8826
TrulicityDulaglutide8414
EzetimibeEzetimibe8023
JardianceEmpagliflozin8024
Fluticasone PropionateFluticasone Propionate7928
Tamsulosin HclTamsulosin Hcl7728
MeloxicamMeloxicam7326
Diclofenac SodiumDiclofenac Sodium7033
Benazepril HclBenazepril Hcl6919
Alendronate SodiumAlendronate Sodium6822
CarvedilolCarvedilol6723
ChlorthalidoneChlorthalidone6121
Lantus SolostarInsulin Glargine,hum.Rec.Anlog5712
Albuterol Sulfate HfaAlbuterol Sulfate5624
Metformin Hcl ErMetformin Hcl5217
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4913
Pioglitazone HclPioglitazone Hcl4913
Pantoprazole SodiumPantoprazole Sodium4816
Pravastatin SodiumPravastatin Sodium4712
Tramadol HclTramadol Hcl4713
Zolpidem TartrateZolpidem Tartrate4611
FamotidineFamotidine4517
EliquisApixaban4414
FinasterideFinasteride4415
TopiramateTopiramate4415
GlimepirideGlimepiride4314
Nano 2nd Gen Pen NeedlePen Needle, Diabetic4212
AzithromycinAzithromycin4033
IbuprofenIbuprofen4013
Metoprolol TartrateMetoprolol Tartrate3913
Meclizine HclMeclizine Hcl3814
AtenololAtenolol3713
Montelukast SodiumMontelukast Sodium3714
PrednisonePrednisone3729
Trelegy ElliptaFluticasone/Umeclidin/Vilanter37suppressed
Citalopram HbrCitalopram Hydrobromide36suppressed
Potassium ChloridePotassium Chloride3612
Fluoxetine HclFluoxetine Hcl3511
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide3511
Sertraline HclSertraline Hcl3412
SpironolactoneSpironolactone3311
Terbinafine HclTerbinafine Hcl31suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3014
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog28suppressed
Doxazosin MesylateDoxazosin Mesylate28suppressed
MounjaroTirzepatide28suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid28suppressed
Duloxetine HclDuloxetine Hcl27suppressed
Hydralazine HclHydralazine Hcl27suppressed
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst2720
Paroxetine HclParoxetine Hcl26suppressed
Terazosin HclTerazosin Hcl26suppressed
ClopidogrelClopidogrel Bisulfate25suppressed
Glipizide ErGlipizide25suppressed
LovastatinLovastatin25suppressed
ClonazepamClonazepam24suppressed
ClotrimazoleClotrimazole2419
Propranolol HclPropranolol Hcl24suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2314
Hydroxyzine HclHydroxyzine Hcl22suppressed
Praluent PenAlirocumab21suppressed
CephalexinCephalexin2018
GlipizideGlipizide20suppressed
JanuviaSitagliptin Phosphate20suppressed
JanumetSitagliptin Phos/Metformin Hcl19suppressed
PaxlovidNirmatrelvir/Ritonavir1919
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1914
TradjentaLinagliptin19suppressed
EstradiolEstradiol18suppressed
Olmesartan MedoxomilOlmesartan Medoxomil18suppressed
Oxybutynin Chloride ErOxybutynin Chloride18suppressed
AmoxicillinAmoxicillin1714
Humalog Kwikpen U-100Insulin Lispro17suppressed
Verapamil ErVerapamil Hcl17suppressed
Bupropion XlBupropion Hcl16suppressed
SucralfateSucralfate16suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol15suppressed
Humulin 70-30Insulin Nph Hum/Reg Insulin Hm15suppressed
RizatriptanRizatriptan Benzoate15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide1412
Ventolin HfaAlbuterol Sulfate14suppressed
Warfarin SodiumWarfarin Sodium14suppressed
AcyclovirAcyclovir13suppressed
AlprazolamAlprazolam13suppressed
Breo ElliptaFluticasone/Vilanterol13suppressed
FenofibrateFenofibrate13suppressed
FenofibrateFenofibrate Nanocrystallized13suppressed
Nebivolol HclNebivolol Hcl13suppressed
Ondansetron OdtOndansetron13suppressed
Quetiapine FumarateQuetiapine Fumarate13suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide13suppressed
Alfuzosin Hcl ErAlfuzosin Hcl12suppressed
AripiprazoleAripiprazole12suppressed
Combivent RespimatIpratropium/Albuterol Sulfate12suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl12suppressed
Donepezil HclDonepezil Hcl12suppressed
Janumet XrSitagliptin Phos/Metformin Hcl12suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide12suppressed
Insulin SyringeSyring-Needl,disp,insul,0.3 Ml11suppressed

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 $40.45 · 2 records Exact Sciences Corporation ABRYSVO, COMIRNATY, Cologuard Collection Kit, PREVNAR 20 2
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