Healthcare provider profile · identity verified

Naomitsu Watanabe, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · MILFORD, DE · NPI 1821542895

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 Naomitsu Watanabe, M.D. received $56.09 in general payments during 2025 across 3 reported records.

Amgen Inc. accounted for 56.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Payment overview · 2025

General Payments

$56.09

3 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
Amgen Inc. Unresolved — no canonical attribution shown $31.6756.5%22025
EMD Serono, Inc. Unresolved — no canonical attribution shown $24.4243.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$56.093

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
OTEZLA
Normalized: otezla
Drug Amgen Inc. $31.67 2 2025
Source payment records
REPATHA
Normalized: repatha
Biological Amgen Inc. $31.67 2 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
Atorvastatin CalciumAtorvastatin Calcium273106
Amlodipine BesylateAmlodipine Besylate23990
LisinoprilLisinopril12652
Albuterol Sulfate HfaAlbuterol Sulfate10541
Losartan PotassiumLosartan Potassium10435
HydrochlorothiazideHydrochlorothiazide9140
Pantoprazole SodiumPantoprazole Sodium9048
GabapentinGabapentin8746
Tramadol HclTramadol Hcl7727
Metformin HclMetformin Hcl7331
Fluticasone PropionateFluticasone Propionate6742
CarvedilolCarvedilol6426
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride6432
Metoprolol SuccinateMetoprolol Succinate5825
FamotidineFamotidine5423
EliquisApixaban4716
Trelegy ElliptaFluticasone/Umeclidin/Vilanter4723
Levothyroxine SodiumLevothyroxine Sodium4417
Nifedipine ErNifedipine4417
FurosemideFurosemide4320
Rosuvastatin CalciumRosuvastatin Calcium4020
FarxigaDapagliflozin Propanediol3815
Metformin Hcl ErMetformin Hcl3711
AllopurinolAllopurinol3612
JardianceEmpagliflozin3612
Tamsulosin HclTamsulosin Hcl3613
Diclofenac SodiumDiclofenac Sodium3526
Trazodone HclTrazodone Hcl3415
Pravastatin SodiumPravastatin Sodium3316
ClopidogrelClopidogrel Bisulfate3216
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide3111
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav3026
ValsartanValsartan30suppressed
BaclofenBaclofen27suppressed
OzempicSemaglutide2715
SimvastatinSimvastatin25suppressed
OmeprazoleOmeprazole23suppressed
ColchicineColchicine22suppressed
MeloxicamMeloxicam2213
Sertraline HclSertraline Hcl2112
Metoprolol TartrateMetoprolol Tartrate20suppressed
Fluoxetine HclFluoxetine Hcl19suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide19suppressed
Potassium ChloridePotassium Chloride18suppressed
RybelsusSemaglutide18suppressed
Clonidine HclClonidine Hcl17suppressed
MounjaroTirzepatide17suppressed
TradjentaLinagliptin17suppressed
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr16suppressed
Doxazosin MesylateDoxazosin Mesylate16suppressed
Montelukast SodiumMontelukast Sodium16suppressed
AtenololAtenolol15suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl15suppressed
ChlorthalidoneChlorthalidone14suppressed
Hydralazine HclHydralazine Hcl14suppressed
LinzessLinaclotide14suppressed
PrednisonePrednisone1411
Breo ElliptaFluticasone/Vilanterol13suppressed
Triamcinolone AcetonideTriamcinolone Acetonide13suppressed
MirtazapineMirtazapine12suppressed
Soliqua 100-33Insulin Glargine/Lixisenatide12suppressed
IbuprofenIbuprofen11suppressed

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 $56.09 · 3 records Amgen Inc. OTEZLA, REPATHA
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