Healthcare provider profile · identity verified

Karen Singh

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family · ROSELLE, NJ · NPI 1811536154

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 Karen Singh received $104.79 in general payments during 2025 across 5 reported records.

Sumitomo Pharma America, Inc. accounted for 83.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 2 associated products.

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

Payment overview · 2025

General Payments

$104.79

5 reported records · 2 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
Sumitomo Pharma America, Inc. Unresolved — no canonical attribution shown $87.6983.7%42025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $17.1016.3%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$104.795

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
ORGOVYX
Normalized: orgovyx
Drug Sumitomo Pharma America, Inc. $87.69 4 2025
Source payment records
RELISTOR
Normalized: relistor
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $17.10 1 2025
Source payment records
  • 2025-11-05 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $17.10 · Open Payments source

* 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
Oxycodone HclOxycodone Hcl52156
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen45059
GabapentinGabapentin43180
Cyclobenzaprine HclCyclobenzaprine Hcl33958
Tramadol HclTramadol Hcl32879
Diclofenac SodiumDiclofenac Sodium30667
PregabalinPregabalin30451
Tizanidine HclTizanidine Hcl29461
MeloxicamMeloxicam20759
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen18532
LidocaineLidocaine15035
CelecoxibCelecoxib12524
Morphine Sulfate ErMorphine Sulfate11414
Acetaminophen-CodeineAcetaminophen With Codeine7416
FentanylFentanyl72suppressed
Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen54suppressed
OxycontinOxycodone Hcl53suppressed
IbuprofenIbuprofen4913
Naloxone HclNaloxone Hcl4848
PercocetOxycodone Hcl/Acetaminophen37suppressed
Methadone HclMethadone Hcl36suppressed
EndocetOxycodone Hcl/Acetaminophen33suppressed
Ondansetron HclOndansetron Hcl29suppressed
Xtampza ErOxycodone Myristate29suppressed
Duloxetine HclDuloxetine Hcl26suppressed
MovantikNaloxegol Oxalate25suppressed
NaproxenNaproxen20suppressed
Morphine SulfateMorphine Sulfate18suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine16suppressed
Diclofenac Sodium ErDiclofenac Sodium16suppressed
MethocarbamolMethocarbamol16suppressed
Ibuprofen-FamotidineIbuprofen/Famotidine13suppressed
Nucynta ErTapentadol 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 $104.79 · 5 records Sumitomo Pharma America, Inc. ORGOVYX, RELISTOR
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