Healthcare provider profile · identity verified

Karin Stringer Maddox, M.D.

Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology · PANAMA CITY, FL · NPI 1780644997

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 Karin Stringer Maddox, M.D. received $2,070.48 in general payments during 2025 across 98 reported records.

ABBVIE INC. accounted for 19.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 29 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Briviact, Nurtec Odt, 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 32 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 13 claims for Ubrelvy by this doctor in 2024.

CSL Behring reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Privigen as an associated drug or biological on 464 records involving 289 distinct recipient NPIs. Public Medicare Part D data also shows 38 claims for Privigen 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 16 claims for Nurtec Odt 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 16 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

$2,070.48

98 reported records · 27 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 $392.8919.0%262025
PFIZER INC. Unresolved — no canonical attribution shown $285.2113.8%172025
UCB, Inc. Unresolved — no canonical attribution shown $264.8912.8%102025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $127.616.2%22025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $113.185.5%52025
SK Life Science, Inc. SK Life Science, Inc.
exact · evidence 2025-04-03
$98.944.8%42025
CSL Behring Unresolved — no canonical attribution shown $97.004.7%32025
ARGENX US, INC. Unresolved — no canonical attribution shown $85.084.1%32025
Genentech USA, Inc. Unresolved — no canonical attribution shown $81.934.0%42025
ACADIA Pharmaceuticals Inc Unresolved — no canonical attribution shown $67.113.2%32025
HARMONY BIOSCIENCES LLC Unresolved — no canonical attribution shown $66.563.2%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $64.783.1%32025
TG Therapeutics, Inc. Unresolved — no canonical attribution shown $39.641.9%22025
Eisai Inc. Unresolved — no canonical attribution shown $39.611.9%22025
Octapharma USA, Inc. Unresolved — no canonical attribution shown $29.561.4%12025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $25.661.2%12025
EMD Serono, Inc. Unresolved — no canonical attribution shown $23.981.2%12025
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $23.971.2%12025
GENZYME CORPORATION Unresolved — no canonical attribution shown $20.751.0%12025
Boston Scientific Corporation Unresolved — no canonical attribution shown $19.210.9%12025
Medtronic, Inc. Medtronic, Inc.
exact · evidence 2025-07-22
$18.500.9%12025
Biogen, Inc. Unresolved — no canonical attribution shown $16.550.8%12025
Lundbeck LLC Unresolved — no canonical attribution shown $16.080.8%12025
MDD US Operations, LLC Unresolved — no canonical attribution shown $15.030.7%12025
Neurocrine BioSciences, Inc. Unresolved — no canonical attribution shown $14.710.7%12025
Azurity Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $13.760.7%12025
Life Molecular Imaging Ltd Unresolved — no canonical attribution shown $8.290.4%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$2,070.4898

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. $310.70 20 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $247.24 15 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $247.24 15 2025
Source payment records
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $216.93 15 2025
Source payment records
Zilbrysq
Normalized: zilbrysq
Drug UCB, Inc. $166.29 7 2025
Source payment records
KESIMPTA
Normalized: kesimpta
Drug Novartis Pharmaceuticals Corporation $113.18 5 2025
Source payment records
Sunosi
Normalized: sunosi
Drug Axsome Therapeutics, Inc. $99.79 1 2025
Source payment records
Hizentra
Normalized: hizentra
Biological CSL Behring $97.00 3 2025
Source payment records
VYVGART HYTRULO
Normalized: vyvgart hytrulo
Drug ARGENX US, INC. $85.08 3 2025
Source payment records
Ocrevus Zunovo
Normalized: ocrevus zunovo
Biological Genentech USA, Inc. $81.93 4 2025
Source payment records
Briviact
Normalized: briviact
Drug UCB, Inc. $69.44 2 2025
Source payment records
PANZYGA
Normalized: panzyga
Biological Octapharma USA, Inc., PFIZER INC. $67.53 3 2025
Source payment records
NUPLAZID
Normalized: nuplazid
Drug ACADIA Pharmaceuticals Inc $67.11 3 2025
Source payment records
WAKIX
Normalized: wakix
Drug HARMONY BIOSCIENCES LLC $66.56 1 2025
Source payment records
KISUNLA
Normalized: kisunla
Drug Lilly USA, LLC $64.78 3 2025
Source payment records
BRIUMVI
Normalized: briumvi
Drug TG Therapeutics, Inc. $39.64 2 2025
Source payment records
Leqembi
Normalized: leqembi
Drug Eisai Inc. $39.61 2 2025
Source payment records
Rystiggo
Normalized: rystiggo
Drug UCB, Inc. $29.16 1 2025
Source payment records
Symbravo
Normalized: symbravo
Drug Axsome Therapeutics, Inc. $27.82 1 2025
Source payment records
XCOPRI
Normalized: xcopri
Drug SK Life Science, Inc. $26.06 1 2025
Source payment records
HYQVIA
Normalized: hyqvia
Biological Takeda Pharmaceuticals U.S.A., Inc. $25.66 1 2025
Source payment records
XYWAV
Normalized: xywav
Drug JAZZ PHARMACEUTICALS INC. $23.97 1 2025
Source payment records
General - Therapies
Normalized: general therapies
Device Boston Scientific Corporation $19.21 1 2025
Source payment records
INCEPTIV
Normalized: inceptiv
Device Medtronic, Inc. $18.50 1 2025
Source payment records
VUMERITY
Normalized: vumerity
Drug Biogen, Inc. $16.55 1 2025
Source payment records
REXULTI
Normalized: rexulti
Drug Lundbeck LLC $16.08 1 2025
Source payment records
Gocovri
Normalized: gocovri
Drug MDD US Operations, LLC $15.03 1 2025
Source payment records
INGREZZA
Normalized: ingrezza
Drug Neurocrine BioSciences, Inc. $14.71 1 2025
Source payment records
NEURACEQ
Normalized: neuraceq
Drug Life Molecular Imaging Ltd $8.29 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 16
Beneficiary count suppressed
exact normalized Medicare Part D
NURTEC ODT
nurtec odt
2025 Nurtec Odt 2024 16
Beneficiary count suppressed
exact normalized Medicare Part D
QULIPTA
qulipta
2025 Qulipta 2024 32
Beneficiary count suppressed
exact normalized Medicare Part D
UBRELVY
ubrelvy
2025 Ubrelvy 2024 13
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
32 suppressed by CMS
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
13 suppressed by CMS
CSL Behring
Exact reporting entity; no affiliate inference
2025 Privigen
open payments reported associated product
CMS Open Payments — General Payments
464 supporting records · 289 recipient NPIs · example record 1232339064
Privigen · 2024
Exact normalized brand match · 1 Part D row
38 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
16 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
16 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
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen1239305
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen685154
GabapentinGabapentin452101
Tramadol HclTramadol Hcl20545
TopiramateTopiramate19740
PregabalinPregabalin19342
LevetiracetamLevetiracetam18835
BaclofenBaclofen15632
Donepezil HclDonepezil Hcl15237
MethocarbamolMethocarbamol14240
Oxycodone HclOxycodone Hcl13837
PrimidonePrimidone13228
MeloxicamMeloxicam11631
Diclofenac SodiumDiclofenac Sodium11230
Tizanidine HclTizanidine Hcl11223
AlprazolamAlprazolam10737
Duloxetine HclDuloxetine Hcl10627
Memantine HclMemantine Hcl9722
ClonazepamClonazepam9520
Morphine Sulfate ErMorphine Sulfate9323
FentanylFentanyl9124
Cyclobenzaprine HclCyclobenzaprine Hcl9023
TemazepamTemazepam81suppressed
Carbidopa-LevodopaCarbidopa/Levodopa7719
Ropinirole HclRopinirole Hcl6414
LacosamideLacosamide5514
EntacaponeEntacapone42suppressed
OxcarbazepineOxcarbazepine41suppressed
PhenobarbitalPhenobarbital41suppressed
Trazodone HclTrazodone Hcl41suppressed
Aimovig AutoinjectorErenumab-Aooe39suppressed
PrivigenImmun Glob G(Igg)/Pro/Iga 0-5038suppressed
Divalproex SodiumDivalproex Sodium37suppressed
Carbamazepine ErCarbamazepine36suppressed
RizatriptanRizatriptan Benzoate36suppressed
Propranolol Hcl ErPropranolol Hcl34suppressed
DiazepamDiazepam33suppressed
Amitriptyline HclAmitriptyline Hcl32suppressed
QuliptaAtogepant32suppressed
Sumatriptan SuccinateSumatriptan Succinate31suppressed
IbuprofenIbuprofen30suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended29suppressed
BelsomraSuvorexant27suppressed
Ondansetron HclOndansetron Hcl27suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine2611
Pramipexole DihydrochloridePramipexole Di-Hcl25suppressed
Carbidopa-Levodopa ErCarbidopa/Levodopa24suppressed
CelecoxibCelecoxib24suppressed
Methadone HclMethadone Hcl23suppressed
ModafinilModafinil22suppressed
Zolpidem TartrateZolpidem Tartrate20suppressed
Ketorolac TromethamineKetorolac Tromethamine19suppressed
LamotrigineLamotrigine18suppressed
Meclizine HclMeclizine Hcl1811
MethylprednisoloneMethylprednisolone1712
OxycontinOxycodone Hcl17suppressed
Promethazine HclPromethazine Hcl17suppressed
BriviactBrivaracetam16suppressed
CarbamazepineCarbamazepine16suppressed
CarisoprodolCarisoprodol16suppressed
Nurtec OdtRimegepant Sulfate16suppressed
Xtampza ErOxycodone Myristate15suppressed
Morphine SulfateMorphine Sulfate14suppressed
NaproxenNaproxen14suppressed
Atomoxetine HclAtomoxetine Hcl13suppressed
Dantrolene SodiumDantrolene Sodium13suppressed
Glatiramer AcetateGlatiramer Acetate13suppressed
UbrelvyUbrogepant13suppressed
Venlafaxine Hcl ErVenlafaxine Hcl13suppressed
Avonex Pen (4 Pack)Interferon Beta-1a12suppressed
ClopidogrelClopidogrel Bisulfate12suppressed
DepakoteDivalproex Sodium12suppressed
DilantinPhenytoin Sodium Extended12suppressed
MetaxaloneMetaxalone12suppressed
Propranolol HclPropranolol Hcl12suppressed
Dextroamphetamine-AmphetamineDextroamphetamine/Amphetamine11suppressed
Sertraline HclSertraline Hcl11suppressed

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 $2,070.48 · 98 records ABBVIE INC. BRIUMVI, Briviact, General - Therapies, Gocovri, HYQVIA, Hizentra, INCEPTIV, INGREZZA, KESIMPTA, KISUNLA, Leqembi, NEURACEQ, NUPLAZID, NURTEC ODT, Ocrevus Zunovo, PANZYGA, QULIPTA, REXULTI, Rystiggo, Sunosi, Symbravo, UBRELVY, VUMERITY, VYVGART HYTRULO, WAKIX, XCOPRI, XYWAV, ZAVZPRET, Zilbrysq 5
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