Healthcare provider profile · identity verified

Thanh J Van, MD

Allopathic & Osteopathic Physicians|Radiology|Radiation Oncology · HOUSTON, TX · NPI 1548252430

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 Thanh J Van, MD received $1,012.21 in general payments during 2025 across 20 reported records.

Astellas Pharma US Inc accounted for 34.2% 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: Orgovyx.

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 ORGOVYX as an associated drug or biological on 16373 records involving 6981 distinct recipient NPIs. Public Medicare Part D data also shows 27 claims for Orgovyx by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,012.21

20 reported records · 8 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
Astellas Pharma US Inc Unresolved — no canonical attribution shown $345.8734.2%82025
PFIZER INC. Unresolved — no canonical attribution shown $177.3117.5%62025
Telix Pharmaceuticals Unresolved — no canonical attribution shown $135.7913.4%12025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $125.9012.4%12025
Tempus AI, Inc Unresolved — no canonical attribution shown $124.5012.3%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $59.995.9%12025
PROGENICS PHARMACEUTICALS, INC. Unresolved — no canonical attribution shown $28.262.8%12025
Innovation Technologies Inc Unresolved — no canonical attribution shown $14.591.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$769.8417
Education$242.373

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
XTANDI
Normalized: xtandi
Drug Astellas Pharma US Inc, PFIZER INC. $258.70 10 2025
Source payment records
ILLUCCIX
Normalized: illuccix
Drug Telix Pharmaceuticals $135.79 1 2025
Source payment records
Nubeqa
Normalized: nubeqa
Drug Bayer Healthcare Pharmaceuticals Inc. $125.90 1 2025
Source payment records
XT CDX
Normalized: xt cdx
Device Tempus AI, Inc $124.50 1 2025
Source payment records
ORGOVYX
Normalized: orgovyx
Drug PFIZER INC. $118.19 4 2025
Source payment records
TALZENNA
Normalized: talzenna
Drug PFIZER INC. $118.19 4 2025
Source payment records
SpaceOAR VUE System - 10mL
Normalized: spaceoar vue system 10ml
Device Boston Scientific Corporation $59.99 1 2025
Source payment records
PYLARIFY
Normalized: pylarify
Drug PROGENICS PHARMACEUTICALS, INC. $28.26 1 2025
Source payment records
Padcev
Normalized: padcev
Drug Astellas Pharma US Inc $22.11 1 2025
Source payment records
IRRISEPT
Normalized: irrisept
Device Innovation Technologies Inc $14.59 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
ORGOVYX
orgovyx
2025 Orgovyx 2024 27
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
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ORGOVYX
open payments reported associated product
CMS Open Payments — General Payments
16373 supporting records · 6981 recipient NPIs · example record 1228794230
Orgovyx · 2024
Exact normalized brand match · 1 Part D row
27 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
Ciprofloxacin HclCiprofloxacin Hcl318288
Tamsulosin HclTamsulosin Hcl21088
Oxybutynin ChlorideOxybutynin Chloride6638
MeloxicamMeloxicam6036
Megestrol AcetateMegestrol Acetate4018
OrgovyxRelugolix27suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim2421
SilodosinSilodosin2312
BicalutamideBicalutamide2118
AzithromycinAzithromycin1312
NaproxenNaproxen1312
Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst1312

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 $1,012.21 · 20 records Astellas Pharma US Inc ILLUCCIX, IRRISEPT, Nubeqa, ORGOVYX, PYLARIFY, Padcev, SpaceOAR VUE System - 10mL, TALZENNA, XT CDX, XTANDI 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