Healthcare provider profile · identity verified

Karthik Ramakrishnan, MD

Allopathic & Osteopathic Physicians|Internal Medicine · BECKLEY, WV · NPI 1942248943

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 Karthik Ramakrishnan, MD received $22.28 in general payments during 2025 across 1 reported records.

Otsuka America Pharmaceutical, Inc. accounted for 100.0% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 1 associated product.

A separate comparison found the same explicitly named product in public Medicare Part D data: Rexulti.

Otsuka America Pharmaceutical, 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 REXULTI as an associated drug or biological on 160756 records involving 46288 distinct recipient NPIs. Public Medicare Part D data also shows 23 claims for Rexulti by this doctor in 2024.

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

Payment overview · 2025

General Payments

$22.28

1 reported records · 1 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
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $22.28100.0%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$22.281

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
REXULTI
Normalized: rexulti
Drug Otsuka America Pharmaceutical, Inc. $22.28 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
REXULTI
rexulti
2025 Rexulti 2024 23
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
Otsuka America Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 REXULTI
open payments reported associated product
CMS Open Payments — General Payments
160756 supporting records · 46288 recipient NPIs · example record 1227267708
Rexulti · 2024
Exact normalized brand match · 1 Part D row
23 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
GabapentinGabapentin46360
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen41985
LorazepamLorazepam25138
Levothyroxine SodiumLevothyroxine Sodium16045
AlprazolamAlprazolam11522
EliquisApixaban11228
FamotidineFamotidine10933
OmeprazoleOmeprazole10936
FurosemideFurosemide10434
ClonazepamClonazepam10311
Potassium ChloridePotassium Chloride9628
Atorvastatin CalciumAtorvastatin Calcium9436
Metoprolol SuccinateMetoprolol Succinate9428
Amlodipine BesylateAmlodipine Besylate8333
Losartan PotassiumLosartan Potassium8230
LisinoprilLisinopril8131
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen7614
Pantoprazole SodiumPantoprazole Sodium7621
Escitalopram OxalateEscitalopram Oxalate7516
LantusInsulin Glargine,hum.Rec.Anlog7116
Quetiapine FumarateQuetiapine Fumarate5812
Tramadol HclTramadol Hcl5414
Rosuvastatin CalciumRosuvastatin Calcium5317
AllopurinolAllopurinol5016
Trazodone HclTrazodone Hcl4812
Buspirone HclBuspirone Hcl4612
JardianceEmpagliflozin46suppressed
Duloxetine HclDuloxetine Hcl4514
Metoprolol TartrateMetoprolol Tartrate4514
Ondansetron HclOndansetron Hcl4528
Cyclobenzaprine HclCyclobenzaprine Hcl4417
AzithromycinAzithromycin4337
Tamsulosin HclTamsulosin Hcl4314
Amitriptyline HclAmitriptyline Hcl41suppressed
ClopidogrelClopidogrel Bisulfate41suppressed
Montelukast SodiumMontelukast Sodium4119
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide38suppressed
Citalopram HbrCitalopram Hydrobromide3713
Sertraline HclSertraline Hcl3711
Albuterol Sulfate HfaAlbuterol Sulfate3615
Donepezil HclDonepezil Hcl35suppressed
MethylprednisoloneMethylprednisolone3429
Ropinirole HclRopinirole Hcl33suppressed
HydrochlorothiazideHydrochlorothiazide3215
GlipizideGlipizide31suppressed
PregabalinPregabalin31suppressed
Metformin Hcl ErMetformin Hcl30suppressed
BaclofenBaclofen28suppressed
Doxycycline HyclateDoxycycline Hyclate2822
FenofibrateFenofibrate Nanocrystallized28suppressed
OzempicSemaglutide28suppressed
Divalproex SodiumDivalproex Sodium27suppressed
AtenololAtenolol26suppressed
Fluticasone PropionateFluticasone Propionate26suppressed
JanuviaSitagliptin Phosphate26suppressed
NystatinNystatin2619
Memantine HclMemantine Hcl25suppressed
SynthroidLevothyroxine Sodium25suppressed
DiazepamDiazepam24suppressed
EzetimibeEzetimibe24suppressed
Fluoxetine HclFluoxetine Hcl24suppressed
Hydralazine HclHydralazine Hcl24suppressed
AmoxicillinAmoxicillin2321
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav2321
Oxybutynin Chloride ErOxybutynin Chloride23suppressed
Pravastatin SodiumPravastatin Sodium23suppressed
RexultiBrexpiprazole23suppressed
RisperidoneRisperidone23suppressed
FinasterideFinasteride22suppressed
MirtazapineMirtazapine22suppressed
LactuloseLactulose21suppressed
Metformin HclMetformin Hcl21suppressed
PrednisonePrednisone2112
Venlafaxine Hcl ErVenlafaxine Hcl21suppressed
XareltoRivaroxaban21suppressed
Oxycodone HclOxycodone Hcl2012
Zolpidem TartrateZolpidem Tartrate20suppressed
CefdinirCefdinir1917
IbuprofenIbuprofen19suppressed
LovastatinLovastatin19suppressed
MeloxicamMeloxicam19suppressed
OlanzapineOlanzapine19suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog18suppressed
CephalexinCephalexin1714
Diclofenac SodiumDiclofenac Sodium17suppressed
DronabinolDronabinol17suppressed
FenofibrateFenofibrate,micronized17suppressed
Ondansetron OdtOndansetron17suppressed
SimvastatinSimvastatin17suppressed
LamotrigineLamotrigine16suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim1614
Bupropion Hcl SrBupropion Hcl15suppressed
Cyanocobalamin InjectionCyanocobalamin (Vitamin B-12)15suppressed
FentanylFentanyl15suppressed
Naloxone HclNaloxone Hcl1515
Paroxetine HclParoxetine Hcl15suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl15suppressed
Propranolol HclPropranolol Hcl15suppressed
TorsemideTorsemide15suppressed
Esomeprazole MagnesiumEsomeprazole Magnesium14suppressed
GlimepirideGlimepiride14suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide14suppressed
Midodrine HclMidodrine Hcl14suppressed
ValsartanValsartan14suppressed
Dicyclomine HclDicyclomine Hcl13suppressed
MethocarbamolMethocarbamol13suppressed
MovantikNaloxegol Oxalate13suppressed
CilostazolCilostazol12suppressed
EstradiolEstradiol12suppressed
FluconazoleFluconazole12suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate1211
MounjaroTirzepatide12suppressed
PrimidonePrimidone12suppressed
Silver SulfadiazineSilver Sulfadiazine12suppressed
SymbicortBudesonide/Formoterol Fumarate12suppressed
Testosterone CypionateTestosterone Cypionate12suppressed
TrulicityDulaglutide12suppressed
Breo ElliptaFluticasone/Vilanterol11suppressed
FenofibrateFenofibrate11suppressed
HumalogInsulin Lispro11suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate11suppressed
Lidocaine HclLidocaine Hcl11suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter11suppressed
Triamcinolone AcetonideTriamcinolone Acetonide11suppressed

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 $22.28 · 1 records Otsuka America Pharmaceutical, Inc. REXULTI 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