Healthcare provider profile · identity verified

David L Ewing, MD

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · SAINT JOSEPH, MO · NPI 1639283369

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 L Ewing, MD received $2,242.18 in general payments during 2025 across 119 reported records.

ABBVIE INC. accounted for 14.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 40 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Briviact, Fycompa, Gamunex-C, Qulipta, Ubrelvy.

ABBVIE 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 QULIPTA as an associated drug or biological on 298617 records involving 58957 distinct recipient NPIs. Public Medicare Part D data also shows 69 claims for Qulipta by this doctor in 2024.

ABBVIE 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 UBRELVY as an associated drug or biological on 299803 records involving 61203 distinct recipient NPIs. Public Medicare Part D data also shows 32 claims for Ubrelvy by this doctor in 2024.

CATALYST 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 FYCOMPA as an associated drug or biological on 3130 records involving 1101 distinct recipient NPIs. Public Medicare Part D data also shows 36 claims for Fycompa by this doctor in 2024.

Grifols USA, 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 Gamunex-C as an associated drug or biological on 3977 records involving 2134 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Gamunex-C by this doctor in 2024.

Teva Pharmaceuticals USA, 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 AUSTEDO as an associated drug or biological on 28 records involving 15 distinct recipient NPIs. Public Medicare Part D data also shows 41 claims for Austedo by this doctor in 2024.

UCB, 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 Briviact as an associated drug or biological on 13595 records involving 4444 distinct recipient NPIs. Public Medicare Part D data also shows 81 claims for Briviact by this doctor in 2024.

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

Payment overview · 2025

General Payments

$2,242.18

119 reported records · 36 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
ABBVIE INC. Unresolved — no canonical attribution shown $325.6014.5%342025
Eisai Inc. Unresolved — no canonical attribution shown $179.908.0%62025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$154.866.9%52025
UCB, Inc. Unresolved — no canonical attribution shown $144.996.5%82025
Biogen, Inc. Unresolved — no canonical attribution shown $135.556.0%92025
ARGENX US, INC. Unresolved — no canonical attribution shown $99.664.4%52025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $97.834.4%42025
PIRAMAL CRITICAL CARE Unresolved — no canonical attribution shown $90.484.0%12025
EMD Serono, Inc. Unresolved — no canonical attribution shown $76.823.4%42025
ANI Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $73.223.3%32025
GENZYME CORPORATION Unresolved — no canonical attribution shown $70.423.1%32025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $68.113.0%32025
TG Therapeutics, Inc. Unresolved — no canonical attribution shown $61.842.8%22025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $59.092.6%22025
Lundbeck LLC Unresolved — no canonical attribution shown $43.361.9%22025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $41.561.9%22025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $41.231.8%22025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $37.601.7%22025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $35.951.6%22025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $33.401.5%22025
MicroTransponder, Inc. Unresolved — no canonical attribution shown $33.091.5%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $30.811.4%22025
Teva Pharmaceuticals USA, Inc. Unresolved — no canonical attribution shown $30.641.4%12025
HARMONY BIOSCIENCES LLC Unresolved — no canonical attribution shown $29.511.3%12025
Celgene Corporation Unresolved — no canonical attribution shown $28.941.3%22025
MDD US Operations, LLC Unresolved — no canonical attribution shown $24.501.1%12025
Abbott Laboratories Unresolved — no canonical attribution shown $24.311.1%12025
Neurelis, Inc. Neurelis, Inc.
exact · evidence 2025-02-20
$23.691.1%12025
Grifols USA, LLC Unresolved — no canonical attribution shown $22.521.0%12025
Genentech USA, Inc. Unresolved — no canonical attribution shown $20.990.9%12025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $18.840.8%12025
Cycle Pharmaceuticals Inc Unresolved — no canonical attribution shown $18.260.8%12025
LivaNova USA, Inc. Unresolved — no canonical attribution shown $16.610.7%12025
CATALYST PHARMACEUTICALS, INC. Unresolved — no canonical attribution shown $16.590.7%12025
SCILEX PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $16.220.7%12025
Alnylam Pharmaceuticals Inc. Unresolved — no canonical attribution shown $15.190.7%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,242.18119

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
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $245.89 28 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $189.20 20 2025
Source payment records
Leqembi
Normalized: leqembi
Drug Eisai Inc. $179.90 6 2025
Source payment records
PERCEPT PC BRAINSENSE
Normalized: percept pc brainsense
Device Medtronic, Inc. $154.86 5 2025
Source payment records
VYVGART HYTRULO
Normalized: vyvgart hytrulo
Drug ARGENX US, INC. $99.66 5 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $97.83 4 2025
Source payment records
GABLOFEN
Normalized: gablofen
Drug PIRAMAL CRITICAL CARE $90.48 1 2025
Source payment records
TYSABRI
Normalized: tysabri
Biological Biogen, Inc. $79.61 6 2025
Source payment records
PURIFIED CORTROPHIN GEL
Normalized: purified cortrophin gel
Drug ANI Pharmaceuticals, Inc. $73.22 3 2025
Source payment records
Rystiggo
Normalized: rystiggo
Drug UCB, Inc. $64.11 4 2025
Source payment records
BRIUMVI
Normalized: briumvi
Drug TG Therapeutics, Inc. $61.84 2 2025
Source payment records
Fintepla
Normalized: fintepla
Drug UCB, Inc. $61.48 3 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $55.94 3 2025
Source payment records
BOTOX
Normalized: botox
Biological ABBVIE INC. $49.18 3 2025
Source payment records
XYWAV
Normalized: xywav
Drug JAZZ PHARMACEUTICALS INC. $46.99 2 2025
Source payment records
VYEPTI
Normalized: vyepti
Biological Lundbeck LLC $43.36 2 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $41.56 2 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $41.23 2 2025
Source payment records
Symbravo
Normalized: symbravo
Drug Axsome Therapeutics, Inc. $37.60 2 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $35.95 2 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $30.81 2 2025
Source payment records
AUSTEDO XR
Normalized: austedo xr
Drug Teva Pharmaceuticals USA, Inc. $30.64 1 2025
Source payment records
WAKIX
Normalized: wakix
Drug HARMONY BIOSCIENCES LLC $29.51 1 2025
Source payment records
VYALEV
Normalized: vyalev
Drug ABBVIE INC. $29.16 2 2025
Source payment records
ZEPOSIA
Normalized: zeposia
Drug Celgene Corporation $28.94 2 2025
Source payment records
Gocovri
Normalized: gocovri
Drug MDD US Operations, LLC $24.50 1 2025
Source payment records
INFINITY
Normalized: infinity
Device Abbott Laboratories $24.31 1 2025
Source payment records
VALTOCO
Normalized: valtoco
Drug Neurelis, Inc. $23.69 1 2025
Source payment records
Gamunex-C
Normalized: gamunex c
Biological Grifols USA, LLC $22.52 1 2025
Source payment records
EPIDIOLEX
Normalized: epidiolex
Drug JAZZ PHARMACEUTICALS INC. $21.12 1 2025
Source payment records
Ocrevus Zunovo
Normalized: ocrevus zunovo
Biological Genentech USA, Inc. $20.99 1 2025
Source payment records
Briviact
Normalized: briviact
Drug UCB, Inc. $19.40 1 2025
Source payment records
NUPLAZID
Normalized: nuplazid
Drug ACADIA Pharmaceuticals Inc $18.84 1 2025
Source payment records
ONGENTYS
Normalized: ongentys
Drug Amneal Pharmaceuticals LLC $18.49 1 2025
Source payment records
Tascenso ODT
Normalized: tascenso odt
Drug Cycle Pharmaceuticals Inc $18.26 1 2025
Source payment records
VNS THERAPY SENTIVA MODEL 1000 GENERATOR
Normalized: vns therapy sentiva model 1000 generator
Device LivaNova USA, Inc. $16.61 1 2025
Source payment records
FYCOMPA
Normalized: fycompa
Drug CATALYST PHARMACEUTICALS, INC. $16.59 1 2025
Source payment records
ZTLido
Normalized: ztlido
Drug SCILEX PHARMACEUTICALS INC. $16.22 1 2025
Source payment records
AMVUTTRA
Normalized: amvuttra
Drug Alnylam Pharmaceuticals Inc. $15.19 1 2025
Source payment records
CREXONT
Normalized: crexont
Drug Amneal Pharmaceuticals LLC $14.91 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
Briviact
briviact
2025 Briviact 2024 81 exact normalized Medicare Part D
FYCOMPA
fycompa
2025 Fycompa 2024 36
Beneficiary count suppressed
exact normalized Medicare Part D
Gamunex-C
gamunex c
2025 Gamunex-C 2024 26
Beneficiary count suppressed
exact normalized Medicare Part D
QULIPTA
qulipta
2025 Qulipta 2024 69 exact normalized Medicare Part D
UBRELVY
ubrelvy
2025 Ubrelvy 2024 32
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 QULIPTA
open payments reported associated product
CMS Open Payments — General Payments
298617 supporting records · 58957 recipient NPIs · example record 1201352530
Qulipta · 2024
Exact normalized brand match · 1 Part D row
69 12
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 UBRELVY
open payments reported associated product
CMS Open Payments — General Payments
299803 supporting records · 61203 recipient NPIs · example record 1201352530
Ubrelvy · 2024
Exact normalized brand match · 1 Part D row
32 suppressed by CMS
CATALYST PHARMACEUTICALS, INC.
Exact reporting entity; no affiliate inference
2025 FYCOMPA
open payments reported associated product
CMS Open Payments — General Payments
3130 supporting records · 1101 recipient NPIs · example record 1253216846
Fycompa · 2024
Exact normalized brand match · 1 Part D row
36 suppressed by CMS
Grifols USA, LLC
Exact reporting entity; no affiliate inference
2025 Gamunex-C
open payments reported associated product
CMS Open Payments — General Payments
3977 supporting records · 2134 recipient NPIs · example record 1249529381
Gamunex-C · 2024
Exact normalized brand match · 1 Part D row
26 suppressed by CMS
Teva Pharmaceuticals USA, Inc.
Exact reporting entity; no affiliate inference
2025 AUSTEDO
open payments reported associated product
CMS Open Payments — General Payments
28 supporting records · 15 recipient NPIs · example record 1247249192
Austedo · 2024
Exact normalized brand match · 1 Part D row
41 suppressed by CMS
UCB, Inc.
Exact reporting entity; no affiliate inference
2025 Briviact
open payments reported associated product
CMS Open Payments — General Payments
13595 supporting records · 4444 recipient NPIs · example record 1224348489
Briviact · 2024
Exact normalized brand match · 1 Part D row
81 12

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
ClonazepamClonazepam59599
TopiramateTopiramate559102
LevetiracetamLevetiracetam54097
Donepezil HclDonepezil Hcl467102
Carbidopa-LevodopaCarbidopa/Levodopa45492
PregabalinPregabalin45470
LacosamideLacosamide45063
Duloxetine HclDuloxetine Hcl430101
GabapentinGabapentin40080
BaclofenBaclofen37385
Nortriptyline HclNortriptyline Hcl29955
Ropinirole HclRopinirole Hcl28964
Memantine HclMemantine Hcl24452
LamotrigineLamotrigine17526
Cyclobenzaprine HclCyclobenzaprine Hcl15645
Tizanidine HclTizanidine Hcl12224
ClopidogrelClopidogrel Bisulfate11533
AmantadineAmantadine Hcl11123
Propranolol Hcl ErPropranolol Hcl11023
Aimovig AutoinjectorErenumab-Aooe10819
Pramipexole DihydrochloridePramipexole Di-Hcl10619
Quetiapine FumarateQuetiapine Fumarate9327
Sumatriptan SuccinateSumatriptan Succinate9132
AripiprazoleAripiprazole8516
CarbamazepineCarbamazepine8513
BriviactBrivaracetam8112
DiazepamDiazepam7444
OxcarbazepineOxcarbazepine7413
Carbamazepine ErCarbamazepine7214
Divalproex SodiumDivalproex Sodium7014
QuliptaAtogepant6912
Amitriptyline HclAmitriptyline Hcl6516
EntacaponeEntacapone6515
Sertraline HclSertraline Hcl6221
Tramadol HclTramadol Hcl60suppressed
PrimidonePrimidone5814
Fluoxetine HclFluoxetine Hcl5213
PhenobarbitalPhenobarbital50suppressed
ZonisamideZonisamide50suppressed
Nurtec OdtRimegepant Sulfate47suppressed
Escitalopram OxalateEscitalopram Oxalate4511
Trazodone HclTrazodone Hcl4514
AustedoDeutetrabenazine41suppressed
FycompaPerampanel36suppressed
RizatriptanRizatriptan Benzoate3611
Phenytoin Sodium ExtendedPhenytoin Sodium Extended34suppressed
UbrelvyUbrogepant32suppressed
Dalfampridine ErDalfampridine30suppressed
Divalproex Sodium ErDivalproex Sodium29suppressed
ClozapineClozapine27suppressed
MirtazapineMirtazapine27suppressed
Pyridostigmine BromidePyridostigmine Bromide27suppressed
Atorvastatin CalciumAtorvastatin Calcium2611
Gamunex-CImmune Globul G/Gly/Iga Avg 4626suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa25suppressed
Citalopram HbrCitalopram Hydrobromide25suppressed
AzathioprineAzathioprine24suppressed
NaproxenNaproxen24suppressed
FentanylFentanyl23suppressed
Paroxetine HclParoxetine Hcl23suppressed
Venlafaxine Hcl ErVenlafaxine Hcl23suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen22suppressed
Benztropine MesylateBenztropine Mesylate21suppressed
Ondansetron OdtOndansetron21suppressed
Propranolol HclPropranolol Hcl2112
EthosuximideEthosuximide20suppressed
KeppraLevetiracetam20suppressed
MeloxicamMeloxicam20suppressed
RisperidoneRisperidone20suppressed
Metoprolol TartrateMetoprolol Tartrate18suppressed
Bupropion HclBupropion Hcl17suppressed
ClobazamClobazam17suppressed
Emgality PenGalcanezumab-Gnlm17suppressed
Glatiramer AcetateGlatiramer Acetate17suppressed
IndomethacinIndomethacin17suppressed
Memantine Hcl ErMemantine Hcl17suppressed
VimpatLacosamide16suppressed
AptiomEslicarbazepine Acetate15suppressed
HaloperidolHaloperidol15suppressed
Methylphenidate HclMethylphenidate Hcl15suppressed
Mycophenolate MofetilMycophenolate Mofetil15suppressed
CarbidopaCarbidopa14suppressed
GlatopaGlatiramer Acetate14suppressed
Prazosin HclPrazosin Hcl14suppressed
Ajovy SyringeFremanezumab-Vfrm13suppressed
CelecoxibCelecoxib13suppressed
Fludrocortisone AcetateFludrocortisone Acetate13suppressed
Imipramine HclImipramine Hcl13suppressed
LorazepamLorazepam13suppressed
ModafinilModafinil13suppressed
Sumatriptan Succ-Naproxen SodSumatriptan Succ/Naproxen Sod13suppressed
Valproic AcidValproic Acid (As Sodium Salt)13suppressed
BelsomraSuvorexant12suppressed
Bethanechol ChlorideBethanechol Chloride12suppressed
CopaxoneGlatiramer Acetate12suppressed
Donepezil Hcl OdtDonepezil Hcl12suppressed
Valproic AcidValproic Acid12suppressed
PhenytoinPhenytoin11suppressed
SpironolactoneSpironolactone11suppressed

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 $2,242.18 · 119 records ABBVIE INC. ACTHAR, AMVUTTRA, AUSTEDO XR, BOTOX, BRIUMVI, Briviact, CREXONT, EPIDIOLEX, FYCOMPA, Fintepla, GABLOFEN, Gamunex-C, Gocovri, INFINITY, INGREZZA, KESIMPTA, KISUNLA, Leqembi, NUPLAZID, ONGENTYS, Ocrevus Zunovo, PERCEPT PC BRAINSENSE, PURIFIED CORTROPHIN GEL, QULIPTA, REXULTI, Rystiggo, Symbravo, TYSABRI, Tascenso ODT, UBRELVY, VALTOCO, VNS THERAPY SENTIVA MODEL 1000 GENERATOR, VUMERITY, VYALEV, VYEPTI, VYVGART HYTRULO, WAKIX, XYWAV, ZEPOSIA, ZTLido 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