Healthcare provider profile · identity verified

Manish Kumar Singh, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · CAPE MAY COURT HOUSE, NJ · NPI 1982712063

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 Manish Kumar Singh, M.D. received $841.23 in general payments during 2025 across 12 reported records.

Otsuka America Pharmaceutical, Inc. accounted for 14.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 11 associated products.

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

Collegium 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 BELBUCA as an associated drug or biological on 17475 records involving 4385 distinct recipient NPIs. Public Medicare Part D data also shows 52 claims for Belbuca by this doctor in 2024.

Collegium 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 Nucynta as an associated drug or biological on 230 records involving 95 distinct recipient NPIs. Public Medicare Part D data also shows 34 claims for Nucynta by this doctor in 2024.

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

Payment overview · 2025

General Payments

$841.23

12 reported records · 9 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 $124.9914.9%12025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $120.7914.4%12025
Gilead Sciences, Inc. Unresolved — no canonical attribution shown $120.0714.3%12025
ABBVIE INC. Unresolved — no canonical attribution shown $119.0514.2%12025
ANI Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $114.9513.7%12025
Radius Health, Inc. Unresolved — no canonical attribution shown $89.7610.7%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $69.538.3%12025
Collegium Pharmaceutical, Inc. Unresolved — no canonical attribution shown $61.127.3%42025
DePuy Synthes Sales Inc. Unresolved — no canonical attribution shown $20.972.5%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$841.2312

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. $124.99 1 2025
Source payment records
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $120.79 1 2025
Source payment records
Epclusa
Normalized: epclusa
Drug Gilead Sciences, Inc. $120.07 1 2025
Source payment records
EMBLAVEO
Normalized: emblaveo
Drug ABBVIE INC. $119.05 1 2025
Source payment records
PURIFIED CORTROPHIN GEL
Normalized: purified cortrophin gel
Drug ANI Pharmaceuticals, Inc. $114.95 1 2025
Source payment records
Tymlos
Normalized: tymlos
Drug Radius Health, Inc. $89.76 1 2025
Source payment records
Wegovy
Normalized: wegovy
Drug Novo Nordisk Inc $69.53 1 2025
Source payment records
Belbuca
Normalized: belbuca
Drug Collegium Pharmaceutical, Inc. $61.12 4 2025
Source payment records
MONOVISC
Normalized: monovisc
Device DePuy Synthes Sales Inc. $20.97 1 2025
Source payment records
ORTHOVISC
Normalized: orthovisc
Device DePuy Synthes Sales Inc. $20.97 1 2025
Source payment records
PEAK
Normalized: peak
Device DePuy Synthes Sales Inc. $20.97 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
Belbuca
belbuca
2025 Belbuca 2024 52
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
Collegium Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 BELBUCA
open payments reported associated product
CMS Open Payments — General Payments
17475 supporting records · 4385 recipient NPIs · example record 1224105020
Belbuca · 2024
Exact normalized brand match · 1 Part D row
52 suppressed by CMS
Collegium Pharmaceutical, Inc.
Exact reporting entity; no affiliate inference
2025 Nucynta
open payments reported associated product
CMS Open Payments — General Payments
230 supporting records · 95 recipient NPIs · example record 1224105108
Nucynta · 2024
Exact normalized brand match · 1 Part D row
34 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
GabapentinGabapentin60275
Tramadol HclTramadol Hcl52961
Buprenorphine-NaloxoneBuprenorphine Hcl/Naloxone Hcl24117
Tramadol Hcl-AcetaminophenTramadol Hcl/Acetaminophen20835
Acetaminophen-CodeineAcetaminophen With Codeine19631
Tizanidine HclTizanidine Hcl13426
Tramadol Hcl ErTramadol Hcl13014
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen77suppressed
Diclofenac SodiumDiclofenac Sodium6739
Ropinirole HclRopinirole Hcl6617
CelecoxibCelecoxib6122
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen57suppressed
Zolpidem TartrateZolpidem Tartrate53suppressed
BelbucaBuprenorphine Hcl52suppressed
Buprenorphine HclBuprenorphine Hcl44suppressed
Duloxetine HclDuloxetine Hcl39suppressed
TopiramateTopiramate35suppressed
NucyntaTapentadol Hcl34suppressed
Pramipexole DihydrochloridePramipexole Di-Hcl34suppressed
BaclofenBaclofen32suppressed
EszopicloneEszopiclone27suppressed
PregabalinPregabalin19suppressed
Nortriptyline HclNortriptyline Hcl18suppressed
BuprenorphineBuprenorphine17suppressed
OxcarbazepineOxcarbazepine17suppressed
ZubsolvBuprenorphine Hcl/Naloxone Hcl15suppressed
MeloxicamMeloxicam14suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
Donepezil HclDonepezil Hcl12suppressed
LidocaineLidocaine12suppressed
Nucynta ErTapentadol Hcl12suppressed
ArmodafinilArmodafinil11suppressed
IbuprofenIbuprofen11suppressed

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 $841.23 · 12 records Otsuka America Pharmaceutical, Inc. BREZTRI, Belbuca, EMBLAVEO, Epclusa, MONOVISC, ORTHOVISC, PEAK, PURIFIED CORTROPHIN GEL, REXULTI, Tymlos, Wegovy 2
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