Healthcare provider profile · identity verified

Michael S Maehara, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · LONG BEACH, CA · NPI 1316969629

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 Michael S Maehara, M.D. received $16.50 in general payments during 2025 across 1 reported records.

GlaxoSmithKline, LLC. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

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

Payment overview · 2025

General Payments

$16.50

1 reported records · 1 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
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $16.50100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$16.501

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
BENLYSTA
Normalized: benlysta
Biological GlaxoSmithKline, LLC. $16.50 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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
MethotrexateMethotrexate Sodium34480
Hydroxychloroquine SulfateHydroxychloroquine Sulfate33870
Alendronate SodiumAlendronate Sodium21862
PrednisonePrednisone17537
Tramadol HclTramadol Hcl13445
ProliaDenosumab13394
IbuprofenIbuprofen7427
Trazodone HclTrazodone Hcl6716
Diclofenac SodiumDiclofenac Sodium6315
GabapentinGabapentin5818
Folic AcidFolic Acid5019
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen5015
NaproxenNaproxen4917
PregabalinPregabalin47suppressed
MeloxicamMeloxicam4512
SulfasalazineSulfasalazine42suppressed
AllopurinolAllopurinol41suppressed
LeflunomideLeflunomide36suppressed
Clobetasol PropionateClobetasol Propionate28suppressed
Actemra ActpenTocilizumab27suppressed
Enbrel SureclickEtanercept26suppressed
Xeljanz XrTofacitinib Citrate26suppressed
MethylprednisoloneMethylprednisolone2515
Risedronate SodiumRisedronate Sodium25suppressed
AzathioprineAzathioprine24suppressed
RinvoqUpadacitinib24suppressed
CelecoxibCelecoxib22suppressed
Humira(Cf) PenAdalimumab22suppressed
Zolpidem TartrateZolpidem Tartrate22suppressed
Mycophenolate MofetilMycophenolate Mofetil18suppressed
LorazepamLorazepam15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl14suppressed
LidocaineLidocaine14suppressed
MethocarbamolMethocarbamol14suppressed
Sulfasalazine DrSulfasalazine14suppressed
FebuxostatFebuxostat13suppressed
Humira PenAdalimumab13suppressed
Duloxetine HclDuloxetine Hcl12suppressed
Levothyroxine SodiumLevothyroxine Sodium12suppressed
Pilocarpine HclPilocarpine Hcl12suppressed
Cosentyx Sensoready (2 Pens)Secukinumab11suppressed

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 $16.50 · 1 records GlaxoSmithKline, LLC. BENLYSTA
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