Healthcare provider profile · identity verified

Ronald E South, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · JONESBORO, AR · NPI 1457314577

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 Ronald E South, M.D. received $18,867.09 in general payments during 2025 across 183 reported records.

Eisai Inc. accounted for 84.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 30 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Ingrezza, Nurtec Odt, Qulipta, Ubrelvy, Vumerity.

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 63 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.

Amneal Pharmaceuticals 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 RYTARY as an associated drug or biological on 200 records involving 121 distinct recipient NPIs. Public Medicare Part D data also shows 88 claims for Rytary by this doctor in 2024.

Biogen, 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 VUMERITY as an associated drug or biological on 16193 records involving 4044 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Vumerity by this doctor in 2024.

Neurocrine BioSciences, 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 INGREZZA as an associated drug or biological on 126456 records involving 27390 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Ingrezza by this doctor in 2024.

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 NURTEC ODT as an associated drug or biological on 217574 records involving 54025 distinct recipient NPIs. Public Medicare Part D data also shows 60 claims for Nurtec Odt by this doctor in 2024.

SK Life Science, 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 XCOPRI as an associated drug or biological on 1992 records involving 782 distinct recipient NPIs. Public Medicare Part D data also shows 14 claims for Xcopri by this doctor in 2024.

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

Payment overview · 2025

General Payments

$18,867.09

183 reported records · 24 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
Eisai Inc. Unresolved — no canonical attribution shown $16,024.5584.9%352025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $342.451.8%182025
ABBVIE INC. Unresolved — no canonical attribution shown $337.831.8%232025
UCB, Inc. Unresolved — no canonical attribution shown $288.771.5%112025
SK Life Science, Inc. SK Life Science, Inc.
exact · evidence 2025-04-03
$256.721.4%92025
CSL Behring Unresolved — no canonical attribution shown $187.691.0%92025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $186.851.0%122025
PFIZER INC. Unresolved — no canonical attribution shown $151.250.8%152025
Lilly USA, LLC Unresolved — no canonical attribution shown $121.900.7%62025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $105.400.6%52025
Amneal Pharmaceuticals LLC Unresolved — no canonical attribution shown $104.410.6%52025
Genentech USA, Inc. Unresolved — no canonical attribution shown $98.680.5%52025
SpringWorks Therapeutics, Inc. Unresolved — no canonical attribution shown $81.850.4%32025
Biogen, Inc. Unresolved — no canonical attribution shown $77.450.4%32025
Neurelis, Inc. Neurelis, Inc.
exact · evidence 2025-02-20
$73.530.4%32025
MDD US Operations, LLC Unresolved — no canonical attribution shown $73.510.4%42025
Amgen Inc. Unresolved — no canonical attribution shown $71.650.4%32025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $60.670.3%32025
Lundbeck LLC Unresolved — no canonical attribution shown $48.820.3%22025
SCILEX PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $42.320.2%22025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $41.690.2%22025
ARGENX US, INC. Unresolved — no canonical attribution shown $33.650.2%22025
Celgene Corporation Unresolved — no canonical attribution shown $31.700.2%22025
Merz Pharmaceuticals, LLC Unresolved — no canonical attribution shown $23.750.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Compensation for serving as faculty or as a speaker for a medical education program$10,950.009
Food and Beverage$3,159.70161
Consulting Fee$2,914.504
Travel and Lodging$1,807.766
Education$35.133

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. $16,024.55 35 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $342.45 18 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $291.58 19 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $245.84 17 2025
Source payment records
Rystiggo
Normalized: rystiggo
Drug UCB, Inc. $192.79 5 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $187.69 9 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $186.85 12 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC, Otsuka America Pharmaceutical, Inc. $136.51 6 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $136.19 13 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $136.19 13 2025
Source payment records
AMYVID
Normalized: amyvid
Drug Lilly USA, LLC $121.90 6 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $121.90 6 2025
Source payment records
CREXONT
Normalized: crexont
Drug Amneal Pharmaceuticals LLC $104.41 5 2025
Source payment records
Ocrevus Zunovo
Normalized: ocrevus zunovo
Biological Genentech USA, Inc. $98.68 5 2025
Source payment records
GOMEKLI
Normalized: gomekli
Drug SpringWorks Therapeutics, Inc. $81.85 3 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $77.45 3 2025
Source payment records
VALTOCO
Normalized: valtoco
Drug Neurelis, Inc. $73.53 3 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $71.65 3 2025
Source payment records
Nayzilam
Normalized: nayzilam
Drug UCB, Inc. $65.18 4 2025
Source payment records
NUPLAZID
Normalized: nuplazid
Drug ACADIA Pharmaceuticals Inc $60.67 3 2025
Source payment records
ZTLido
Normalized: ztlido
Drug SCILEX PHARMACEUTICALS INC. $42.32 2 2025
Source payment records
WAINUA
Normalized: wainua
Drug AstraZeneca Pharmaceuticals LP $41.69 2 2025
Source payment records
VYVGART
Normalized: vyvgart
Drug ARGENX US, INC. $33.65 2 2025
Source payment records
ZEPOSIA
Normalized: zeposia
Drug Celgene Corporation $31.70 2 2025
Source payment records
Briviact
Normalized: briviact
Drug UCB, Inc. $30.80 2 2025
Source payment records
VYALEV
Normalized: vyalev
Drug ABBVIE INC. $25.87 3 2025
Source payment records
Xeomin
Normalized: xeomin
Biological Merz Pharmaceuticals, LLC $23.75 1 2025
Source payment records
VYEPTI
Normalized: vyepti
Biological Lundbeck LLC $17.71 1 2025
Source payment records
OCTAGAM IMMUNE GLOBULIN (HUMAN)
Normalized: octagam immune globulin human
Drug PFIZER INC. $15.06 2 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological PFIZER INC. $15.06 2 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
INGREZZA
ingrezza
2025 Ingrezza 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 60 exact normalized Medicare Part D
QULIPTA
qulipta
2025 Qulipta 2024 63 exact normalized Medicare Part D
UBRELVY
ubrelvy
2025 Ubrelvy 2024 32
Beneficiary count suppressed
exact normalized Medicare Part D
VUMERITY
vumerity
2025 Vumerity 2024 14
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
63 11
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
Amneal Pharmaceuticals LLC
Exact reporting entity; no affiliate inference
2025 RYTARY
open payments reported associated product
CMS Open Payments — General Payments
200 supporting records · 121 recipient NPIs · example record 1220526035
Rytary · 2024
Exact normalized brand match · 1 Part D row
88 13
Biogen, Inc.
Exact reporting entity; no affiliate inference
2025 VUMERITY
open payments reported associated product
CMS Open Payments — General Payments
16193 supporting records · 4044 recipient NPIs · example record 1208299697
Vumerity · 2024
Exact normalized brand match · 1 Part D row
14 suppressed by CMS
Neurocrine BioSciences, Inc.
Exact reporting entity; no affiliate inference
2025 INGREZZA
open payments reported associated product
CMS Open Payments — General Payments
126456 supporting records · 27390 recipient NPIs · example record 1242766729
Ingrezza · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 NURTEC ODT
open payments reported associated product
CMS Open Payments — General Payments
217574 supporting records · 54025 recipient NPIs · example record 1228794063
Nurtec Odt · 2024
Exact normalized brand match · 1 Part D row
60 13
SK Life Science, Inc.
Exact reporting entity; no affiliate inference
2025 XCOPRI
open payments reported associated product
CMS Open Payments — General Payments
1992 supporting records · 782 recipient NPIs · example record 1252276115
Xcopri · 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
Donepezil HclDonepezil Hcl32798
PregabalinPregabalin19448
PrimidonePrimidone19346
Carbidopa-LevodopaCarbidopa/Levodopa17537
GabapentinGabapentin16532
LevetiracetamLevetiracetam13818
Memantine HclMemantine Hcl12540
Ropinirole HclRopinirole Hcl11728
Duloxetine HclDuloxetine Hcl10123
Memantine Hcl ErMemantine Hcl9023
RytaryCarbidopa/Levodopa8813
AlprazolamAlprazolam7413
TopiramateTopiramate7120
LacosamideLacosamide7017
Amitriptyline HclAmitriptyline Hcl6818
Galantamine ErGalantamine Hbr6816
QuliptaAtogepant6311
Nurtec OdtRimegepant Sulfate6013
Phenytoin Sodium ExtendedPhenytoin Sodium Extended58suppressed
Tizanidine HclTizanidine Hcl54suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen3612
CelecoxibCelecoxib34suppressed
Aimovig AutoinjectorErenumab-Aooe32suppressed
LamotrigineLamotrigine32suppressed
Naratriptan HclNaratriptan Hcl32suppressed
Pyridostigmine BromidePyridostigmine Bromide32suppressed
UbrelvyUbrogepant32suppressed
Gamunex-CImmune Globul G/Gly/Iga Avg 4630suppressed
RizatriptanRizatriptan Benzoate30suppressed
Escitalopram OxalateEscitalopram Oxalate2911
DiazepamDiazepam2813
PhenobarbitalPhenobarbital28suppressed
Venlafaxine Hcl ErVenlafaxine Hcl28suppressed
Acetaminophen-CodeineAcetaminophen With Codeine2711
ClonazepamClonazepam27suppressed
Nortriptyline HclNortriptyline Hcl27suppressed
Sumatriptan SuccinateSumatriptan Succinate27suppressed
TeriflunomideTeriflunomide27suppressed
ClopidogrelClopidogrel Bisulfate26suppressed
Emgality PenGalcanezumab-Gnlm25suppressed
OxcarbazepineOxcarbazepine25suppressed
CarbamazepineCarbamazepine22suppressed
Kesimpta PenOfatumumab21suppressed
Galantamine HbrGalantamine Hbr20suppressed
Bupropion XlBupropion Hcl19suppressed
Quetiapine FumarateQuetiapine Fumarate18suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
Desvenlafaxine Succinate ErDesvenlafaxine Succinate16suppressed
Ajovy SyringeFremanezumab-Vfrm15suppressed
Morphine Sulfate ErMorphine Sulfate15suppressed
RivastigmineRivastigmine Tartrate15suppressed
Tramadol HclTramadol Hcl14suppressed
VumerityDiroximel Fumarate14suppressed
XcopriCenobamate14suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine13suppressed
IngrezzaValbenazine Tosylate13suppressed
Ketorolac TromethamineKetorolac Tromethamine13suppressed
MeloxicamMeloxicam13suppressed
OlanzapineOlanzapine13suppressed
Ondansetron HclOndansetron Hcl13suppressed
Ondansetron OdtOndansetron13suppressed
Promethazine HclPromethazine Hcl13suppressed
Propranolol HclPropranolol Hcl13suppressed
Sertraline HclSertraline Hcl13suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa12suppressed
EszopicloneEszopiclone12suppressed
Oxycodone HclOxycodone Hcl12suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl12suppressed
Sodium Chloride0.9 % Sodium Chloride11suppressed

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 $18,867.09 · 183 records Eisai Inc. AMYVID, Briviact, CREXONT, GOMEKLI, Hizentra, INGREZZA, KESIMPTA, KISUNLA, Leqembi, NUPLAZID, NURTEC ODT, Nayzilam, OCTAGAM IMMUNE GLOBULIN (HUMAN), Ocrevus Zunovo, PANZYGA, QULIPTA, REXULTI, Rystiggo, UBRELVY, UPLIZNA, VALTOCO, VUMERITY, VYALEV, VYEPTI, VYVGART, WAINUA, Xeomin, ZAVZPRET, ZEPOSIA, ZTLido 7
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