Healthcare provider profile · identity verified

Joseph Doan, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology · RENO, NV · NPI 1528445210

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 Joseph Doan, MD received $416.19 in general payments during 2025 across 22 reported records.

Novo Nordisk Inc accounted for 13.4% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 10 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga.

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 FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 21 claims for Farxiga by this doctor in 2024.

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

Payment overview · 2025

General Payments

$416.19

22 reported records · 12 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
Novo Nordisk Inc Unresolved — no canonical attribution shown $55.7613.4%32025
GENZYME CORPORATION Unresolved — no canonical attribution shown $53.3512.8%22025
Travere Therapeutics, Inc. Unresolved — no canonical attribution shown $49.9012.0%22025
Amgen Inc. Unresolved — no canonical attribution shown $49.7011.9%22025
Outset Medical Inc Unresolved — no canonical attribution shown $35.798.6%12025
Calliditas Therapeutics US Inc. Unresolved — no canonical attribution shown $35.078.4%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $29.837.2%12025
Tactile Systems Technology Inc Unresolved — no canonical attribution shown $24.966.0%12025
Electromed, Inc. Unresolved — no canonical attribution shown $24.255.8%52025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $22.165.3%12025
Xeris Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $19.704.7%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $15.723.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$416.1922

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
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $75.51 3 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $55.76 3 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $49.70 2 2025
Source payment records
TARPEYO
Normalized: tarpeyo
Drug Calliditas Therapeutics US Inc. $35.07 2 2025
Source payment records
Fabhalta
Normalized: fabhalta
Drug Novartis Pharmaceuticals Corporation $29.83 1 2025
Source payment records
Flexitouch Plus
Normalized: flexitouch plus
Device Tactile Systems Technology Inc $24.96 1 2025
Source payment records
Nimbl
Normalized: nimbl
Device Tactile Systems Technology Inc $24.96 1 2025
Source payment records
SMARTVEST
Normalized: smartvest
Device Electromed, Inc. $24.25 5 2025
Source payment records
KEVEYIS
Normalized: keveyis
Drug Xeris Pharmaceuticals, Inc. $19.70 1 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $15.72 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
FARXIGA
farxiga
2025 Farxiga 2024 21
Beneficiary count suppressed
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 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
21 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
Losartan PotassiumLosartan Potassium7223
Amlodipine BesylateAmlodipine Besylate6527
FurosemideFurosemide3718
LisinoprilLisinopril3518
Hydralazine HclHydralazine Hcl26suppressed
HydrochlorothiazideHydrochlorothiazide2511
FarxigaDapagliflozin Propanediol21suppressed
Tamsulosin HclTamsulosin Hcl19suppressed
JardianceEmpagliflozin16suppressed
AllopurinolAllopurinol15suppressed
SpironolactoneSpironolactone15suppressed
CarvedilolCarvedilol13suppressed
Sevelamer CarbonateSevelamer Carbonate12suppressed
TorsemideTorsemide11suppressed

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 $416.19 · 22 records Novo Nordisk Inc DUPIXENT, FARXIGA, Fabhalta, Flexitouch Plus, KEVEYIS, Nimbl, Ozempic, SMARTVEST, TARPEYO, TAVNEOS 1
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