Healthcare provider profile · identity verified

David A Weidman, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · PHOENIX, AZ · NPI 1467447656

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 David A Weidman, MD received $1,210.41 in general payments during 2025 across 23 reported records.

Eli Lilly and Company accounted for 57.8% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 14 associated products.

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

Payment overview · 2025

General Payments

$1,210.41

23 reported records · 15 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
Eli Lilly and Company Unresolved — no canonical attribution shown $700.0057.8%12025
Eisai Inc. Unresolved — no canonical attribution shown $102.368.5%22025
Genentech USA, Inc. Unresolved — no canonical attribution shown $60.695.0%22025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $57.154.7%32025
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) Unresolved — no canonical attribution shown $47.633.9%22025
ARGENX US, INC. Unresolved — no canonical attribution shown $45.443.8%22025
Tonix Medicines, Inc. Unresolved — no canonical attribution shown $33.272.8%22025
Biogen, Inc. Unresolved — no canonical attribution shown $30.612.5%22025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $23.732.0%12025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $20.961.7%12025
Lundbeck LLC Unresolved — no canonical attribution shown $18.921.6%12025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $18.821.6%12025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $18.751.6%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $18.521.5%12025
Noven Therapeutics, LLC Unresolved — no canonical attribution shown $13.561.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$700.001
Food and Beverage$510.4122

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
Leqembi
Normalized: leqembi
Drug Eisai Inc. $102.36 2 2025
Source payment records
Ocrevus Zunovo
Normalized: ocrevus zunovo
Biological Genentech USA, Inc. $60.69 2 2025
Source payment records
ULTOMIRIS
Normalized: ultomiris
Biological Alexion Pharmaceuticals, Inc. $57.15 3 2025
Source payment records
CAPLYTA
Normalized: caplyta
Drug ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) $47.63 2 2025
Source payment records
VYVGART HYTRULO
Normalized: vyvgart hytrulo
Drug ARGENX US, INC. $45.44 2 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $37.44 2 2025
Source payment records
ZEMBRACE SYMTOUCH
Normalized: zembrace symtouch
Drug Tonix Medicines, Inc. $33.27 2 2025
Source payment records
TYSABRI
Normalized: tysabri
Biological Biogen, Inc. $30.61 2 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $30.61 2 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $23.73 1 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $20.96 1 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $18.82 1 2025
Source payment records
CREXONT
Normalized: crexont
Drug Amneal Pharmaceuticals LLC $18.75 1 2025
Source payment records
Xelstrym
Normalized: xelstrym
Drug Noven Therapeutics, LLC $13.56 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.

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
Donepezil HclDonepezil Hcl283116
RivastigmineRivastigmine8731
Memantine HclMemantine Hcl7428
Escitalopram OxalateEscitalopram Oxalate6528
Citalopram HbrCitalopram Hydrobromide5415
Galantamine ErGalantamine Hbr3913
Trazodone HclTrazodone Hcl2913
Venlafaxine Hcl ErVenlafaxine Hcl27suppressed
Buspirone HclBuspirone Hcl21suppressed
Quetiapine FumarateQuetiapine Fumarate19suppressed
BelsomraSuvorexant18suppressed
Methylphenidate HclMethylphenidate Hcl15suppressed
RivastigmineRivastigmine Tartrate13suppressed
Sertraline HclSertraline Hcl13suppressed

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 $1,210.41 · 23 records Eli Lilly and Company AUSTEDO XR, CAPLYTA, CREXONT, FANAPT, KESIMPTA, Leqembi, Ocrevus Zunovo, REXULTI, TYSABRI, ULTOMIRIS, VUMERITY, VYVGART HYTRULO, Xelstrym, ZEMBRACE SYMTOUCH
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