Healthcare provider profile · identity verified

Vanessa Tiongson, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · NEW YORK, NY · NPI 1225371024

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 Vanessa Tiongson, M.D. received $1,125.77 in general payments during 2025 across 20 reported records.

AstraZeneca Pharmaceuticals LP accounted for 45.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 6 associated products.

Alnylam 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 AMVUTTRA as an associated drug or biological on 15085 records involving 6358 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Amvuttra by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,125.77

20 reported records · 6 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 $516.0645.8%82025
ARGENX US, INC. Unresolved — no canonical attribution shown $355.1131.5%72025
Janssen Scientific Affairs, LLC Unresolved — no canonical attribution shown $149.5013.3%12025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $65.165.8%22025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $24.392.2%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $15.551.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,125.7720

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
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $245.74 6 2025
Source payment records
VYVGART
Normalized: vyvgart
Drug ARGENX US, INC. $189.51 5 2025
Source payment records
VYVGART HYTRULO
Normalized: vyvgart hytrulo
Drug ARGENX US, INC. $165.60 2 2025
Source payment records
ONPATTRO
Normalized: onpattro
Drug Alnylam Pharmaceuticals Inc. $65.16 2 2025
Source payment records
HYQVIA
Normalized: hyqvia
Biological Takeda Pharmaceuticals U.S.A., Inc. $24.39 1 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $15.55 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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Alnylam Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 AMVUTTRA
open payments reported associated product
CMS Open Payments — General Payments
15085 supporting records · 6358 recipient NPIs · example record 1212737037
Amvuttra · 2024
Exact normalized brand match · 1 Part D row
14 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
GabapentinGabapentin19747
Doxepin HclDoxepin Hcl15815
Donepezil HclDonepezil Hcl15138
Memantine HclMemantine Hcl12534
Diclofenac Sodium ErDiclofenac Sodium9511
Nurtec OdtRimegepant Sulfate8019
MirtazapineMirtazapine7917
PregabalinPregabalin6413
LevetiracetamLevetiracetam5911
Tizanidine HclTizanidine Hcl4513
Quetiapine FumarateQuetiapine Fumarate39suppressed
Emgality PenGalcanezumab-Gnlm30suppressed
Pyridostigmine BromidePyridostigmine Bromide28suppressed
LacosamideLacosamide26suppressed
Carbidopa-LevodopaCarbidopa/Levodopa25suppressed
RizatriptanRizatriptan Benzoate25suppressed
BaclofenBaclofen23suppressed
Escitalopram OxalateEscitalopram Oxalate21suppressed
LamotrigineLamotrigine21suppressed
TopiramateTopiramate21suppressed
PrednisonePrednisone20suppressed
UbrelvyUbrogepant20suppressed
MeloxicamMeloxicam19suppressed
Sumatriptan SuccinateSumatriptan Succinate19suppressed
Galantamine HbrGalantamine Hbr18suppressed
PrivigenImmun Glob G(Igg)/Pro/Iga 0-5017suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl16suppressed
FamotidineFamotidine16suppressed
Nortriptyline HclNortriptyline Hcl16suppressed
Venlafaxine Hcl ErVenlafaxine Hcl16suppressed
AzathioprineAzathioprine15suppressed
Amitriptyline HclAmitriptyline Hcl14suppressed
AmvuttraVutrisiran Sodium14suppressed
Atorvastatin CalciumAtorvastatin Calcium13suppressed
Divalproex SodiumDivalproex Sodium12suppressed
Duloxetine HclDuloxetine Hcl12suppressed
HydrochlorothiazideHydrochlorothiazide12suppressed
BriviactBrivaracetam11suppressed
Memantine Hcl ErMemantine Hcl11suppressed
OxcarbazepineOxcarbazepine11suppressed

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 $1,125.77 · 20 records AstraZeneca Pharmaceuticals LP HYQVIA, KISUNLA, ONPATTRO, VYVGART, VYVGART HYTRULO, WAINUA 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