Healthcare provider profile · identity verified

Robert M Tanaka, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease · MODESTO, CA · NPI 1194764720

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 Robert M Tanaka, M.D. received $1,634.06 in general payments during 2025 across 68 reported records.

AstraZeneca Pharmaceuticals LP accounted for 25.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 18 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Adempas, Ofev, Trelegy Ellipta.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported BEVESPI AEROSPHERE as an associated drug or biological on 763 records involving 473 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Bevespi Aerosphere by this doctor in 2024.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported SYMBICORT as an associated drug or biological on 71 records involving 51 distinct recipient NPIs. Public Medicare Part D data also shows 90 claims for Symbicort by this doctor in 2024.

Bayer Healthcare Pharmaceuticals 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 Adempas as an associated drug or biological on 3385 records involving 1868 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Adempas by this doctor in 2024.

Boehringer Ingelheim Pharmaceuticals, 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 OFEV as an associated drug or biological on 14236 records involving 6873 distinct recipient NPIs. Public Medicare Part D data also shows 67 claims for Ofev by this doctor in 2024.

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 489 claims for Trelegy Ellipta by this doctor in 2024.

Merck Sharp & Dohme LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Adempas as an associated drug or biological on 14 records involving 2 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Adempas by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,634.06

68 reported records · 14 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $410.0725.1%142025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $250.6815.3%232025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $200.0012.2%12025
GENZYME CORPORATION Unresolved — no canonical attribution shown $134.828.2%72025
Verona Pharma, Inc. Unresolved — no canonical attribution shown $106.676.5%52025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $93.345.7%22025
Insmed, Inc. Unresolved — no canonical attribution shown $92.355.7%42025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $85.245.2%32025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $75.114.6%12025
Viatris Specialty LLC Unresolved — no canonical attribution shown $51.003.1%22025
Genentech USA, Inc. Unresolved — no canonical attribution shown $41.772.6%22025
Grifols USA, LLC Unresolved — no canonical attribution shown $33.082.0%12025
Amgen Inc. Unresolved — no canonical attribution shown $30.821.9%22025
United Therapeutics Corporation Unresolved — no canonical attribution shown $29.111.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,416.6866
Consulting Fee$200.001
Education$17.381

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
TEZSPIRE
Normalized: tezspire
Biological Amgen Inc., AstraZeneca Pharmaceuticals LP $225.12 6 2025
Source payment records
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $220.06 10 2025
Source payment records
Adempas
Normalized: adempas
Drug Bayer Healthcare Pharmaceuticals Inc. $200.00 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $140.36 13 2025
Source payment records
NUCALA
Normalized: nucala
Biological GlaxoSmithKline, LLC. $110.32 10 2025
Source payment records
AIRSUPRA
Normalized: airsupra
Drug AstraZeneca Pharmaceuticals LP $109.33 4 2025
Source payment records
Ohtuvayre
Normalized: ohtuvayre
Drug Verona Pharma, Inc. $106.67 5 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $91.81 4 2025
Source payment records
WINREVAIR
Normalized: winrevair
Biological Merck Sharp & Dohme LLC $75.11 1 2025
Source payment records
Arikayce
Normalized: arikayce
Drug Insmed, Inc. $74.97 3 2025
Source payment records
Brinsupri
Normalized: brinsupri
Drug Insmed, Inc. $65.87 3 2025
Source payment records
OFEV
Normalized: ofev
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $65.62 1 2025
Source payment records
YUPELRI
Normalized: yupelri
Drug Viatris Specialty LLC $51.00 2 2025
Source payment records
Xolair
Normalized: xolair
Biological Genentech USA, Inc. $41.77 2 2025
Source payment records
Prolastin-C Liquid
Normalized: prolastin c liquid
Biological Grifols USA, LLC $33.08 1 2025
Source payment records
Tyvaso
Normalized: tyvaso
Drug United Therapeutics Corporation $29.11 1 2025
Source payment records
JASCAYD
Normalized: jascayd
Drug Boehringer Ingelheim Pharmaceuticals, Inc. $27.72 1 2025
Source payment records
FASENRA
Normalized: fasenra
Biological AstraZeneca Pharmaceuticals LP $14.12 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
Adempas
adempas
2025 Adempas 2024 12
Beneficiary count suppressed
exact normalized Medicare Part D
OFEV
ofev
2025 Ofev 2024 67
Beneficiary count suppressed
exact normalized Medicare Part D
TRELEGY ELLIPTA
trelegy ellipta
2025 Trelegy Ellipta 2024 489 exact normalized Medicare Part D

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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 BEVESPI AEROSPHERE
open payments reported associated product
CMS Open Payments — General Payments
763 supporting records · 473 recipient NPIs · example record 1206131384
Bevespi Aerosphere · 2024
Exact normalized brand match · 1 Part D row
21 suppressed by CMS
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 SYMBICORT
open payments reported associated product
CMS Open Payments — General Payments
71 supporting records · 51 recipient NPIs · example record 1206132610
Symbicort · 2024
Exact normalized brand match · 1 Part D row
90 26
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Adempas
open payments reported associated product
CMS Open Payments — General Payments
3385 supporting records · 1868 recipient NPIs · example record 1225434673
Adempas · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Boehringer Ingelheim Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 OFEV
open payments reported associated product
CMS Open Payments — General Payments
14236 supporting records · 6873 recipient NPIs · example record 1221811762
Ofev · 2024
Exact normalized brand match · 1 Part D row
67 suppressed by CMS
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
489 96
Merck Sharp & Dohme LLC
Exact reporting entity; no affiliate inference
2025 Adempas
open payments reported associated product
CMS Open Payments — General Payments
14 supporting records · 2 recipient NPIs · example record 1237996458
Adempas · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS

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
AzithromycinAzithromycin593189
Trelegy ElliptaFluticasone/Umeclidin/Vilanter48996
Breo ElliptaFluticasone/Vilanterol40487
PrednisonePrednisone347148
Albuterol Sulfate HfaAlbuterol Sulfate336122
Montelukast SodiumMontelukast Sodium31682
Anoro ElliptaUmeclidinium Brm/Vilanterol Tr21645
Wixela InhubFluticasone Propion/Salmeterol15735
Fluticasone PropionateFluticasone Propionate11347
Stiolto RespimatTiotropium Br/Olodaterol Hcl10925
Spiriva RespimatTiotropium Bromide9519
Fluticasone-SalmeterolFluticasone Propion/Salmeterol9130
SymbicortBudesonide/Formoterol Fumarate9026
Breztri AerosphereBudesonide/Glycopyr/Formoterol8824
Ventolin HfaAlbuterol Sulfate8739
FurosemideFurosemide7917
BreynaBudesonide/Formoterol Fumarate7521
Pantoprazole SodiumPantoprazole Sodium7413
Incruse ElliptaUmeclidinium Bromide7012
OfevNintedanib Esylate67suppressed
Advair DiskusFluticasone Propion/Salmeterol6211
Potassium ChloridePotassium Chloride6212
Theophylline ErTheophylline Anhydrous6013
Doxycycline HyclateDoxycycline Hyclate5537
Combivent RespimatIpratropium/Albuterol Sulfate5414
RoflumilastRoflumilast50suppressed
Azelastine HclAzelastine Hcl4720
DuleraMometasone/Formoterol4013
NystatinNystatin3912
CefuroximeCefuroxime Axetil3631
Fluticasone-VilanterolFluticasone/Vilanterol3522
OpsumitMacitentan35suppressed
ZafirlukastZafirlukast34suppressed
Advair HfaFluticasone Propion/Salmeterol32suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid3211
Spiriva HandihalerTiotropium Bromide31suppressed
RifampinRifampin30suppressed
Ethambutol HclEthambutol Hcl29suppressed
Ipratropium BromideIpratropium Bromide28suppressed
Levalbuterol Tartrate HfaLevalbuterol Tartrate27suppressed
MethylprednisoloneMethylprednisolone2616
Promethazine HclPromethazine Hcl2512
LisinoprilLisinopril24suppressed
Ciprofloxacin HclCiprofloxacin Hcl23suppressed
ClarithromycinClarithromycin22suppressed
LevofloxacinLevofloxacin2220
Mycophenolate MofetilMycophenolate Mofetil22suppressed
OmeprazoleOmeprazole22suppressed
Bevespi AerosphereGlycopyrrolate/Formoterol Fum21suppressed
Budesonide-Formoterol FumarateBudesonide/Formoterol Fumarate2013
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav1913
Atrovent HfaIpratropium Bromide18suppressed
EliquisApixaban17suppressed
TadalafilTadalafil16suppressed
AlprazolamAlprazolam15suppressed
AmoxicillinAmoxicillin15suppressed
BaclofenBaclofen15suppressed
AmbrisentanAmbrisentan14suppressed
Qvar RedihalerBeclomethasone Dipropionate14suppressed
Tiotropium BromideTiotropium Bromide13suppressed
AdempasRiociguat12suppressed
FluconazoleFluconazole12suppressed
HydrochlorothiazideHydrochlorothiazide12suppressed
Metoclopramide HclMetoclopramide Hcl12suppressed
MirtazapineMirtazapine12suppressed
Ondansetron HclOndansetron Hcl12suppressed
Serevent DiskusSalmeterol Xinafoate12suppressed

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 $1,634.06 · 68 records AstraZeneca Pharmaceuticals LP AIRSUPRA, Adempas, Arikayce, BREZTRI, Brinsupri, DUPIXENT, FASENRA, JASCAYD, NUCALA, OFEV, Ohtuvayre, Prolastin-C Liquid, TEZSPIRE, TRELEGY ELLIPTA, Tyvaso, WINREVAIR, Xolair, YUPELRI 6
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