Healthcare provider profile · identity verified

William Joseph Kolhoff, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · RINCON, GA · NPI 1669703278

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 William Joseph Kolhoff, M.D. received $219.06 in general payments during 2025 across 9 reported records.

JAZZ PHARMACEUTICALS INC. accounted for 38.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 8 associated products.

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

JAZZ PHARMACEUTICALS 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 EPIDIOLEX as an associated drug or biological on 10990 records involving 3626 distinct recipient NPIs. Public Medicare Part D data also shows 26 claims for Epidiolex by this doctor in 2024.

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

Payment overview · 2025

General Payments

$219.06

9 reported records · 7 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
JAZZ PHARMACEUTICALS INC. Unresolved — no canonical attribution shown $83.8238.3%32025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $30.2513.8%12025
Janssen Pharmaceuticals, Inc Unresolved — no canonical attribution shown $24.8811.4%12025
Alkermes, Inc. Unresolved — no canonical attribution shown $21.059.6%12025
Vanda Pharmaceuticals Inc. Unresolved — no canonical attribution shown $20.999.6%12025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $20.169.2%12025
Otsuka America Pharmaceutical, Inc. Unresolved — no canonical attribution shown $17.918.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$219.069

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
EPIDIOLEX
Normalized: epidiolex
Drug JAZZ PHARMACEUTICALS INC. $83.82 3 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $30.25 1 2025
Source payment records
INVEGA SUSTENNA
Normalized: invega sustenna
Drug Janssen Pharmaceuticals, Inc $24.88 1 2025
Source payment records
ARISTADA
Normalized: aristada
Drug Alkermes, Inc. $21.05 1 2025
Source payment records
LYBALVI
Normalized: lybalvi
Drug Alkermes, Inc. $21.05 1 2025
Source payment records
FANAPT
Normalized: fanapt
Drug Vanda Pharmaceuticals Inc. $20.99 1 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $20.16 1 2025
Source payment records
ABILIFY ASIMTUFII
Normalized: abilify asimtufii
Drug Otsuka America Pharmaceutical, Inc. $17.91 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
EPIDIOLEX
epidiolex
2025 Epidiolex 2024 26
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
JAZZ PHARMACEUTICALS INC.
Exact reporting entity; no affiliate inference
2025 EPIDIOLEX
open payments reported associated product
CMS Open Payments — General Payments
10990 supporting records · 3626 recipient NPIs · example record 1234297758
Epidiolex · 2024
Exact normalized brand match · 1 Part D row
26 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
LansoprazoleLansoprazole10119
LevetiracetamLevetiracetam7216
SucralfateSucralfate6313
Levothyroxine SodiumLevothyroxine Sodium5611
Atorvastatin CalciumAtorvastatin Calcium54suppressed
LacosamideLacosamide39suppressed
Amlodipine BesylateAmlodipine Besylate38suppressed
CarbamazepineCarbamazepine32suppressed
FamotidineFamotidine29suppressed
EpidiolexCannabidiol (Cbd)26suppressed
PhenytoinPhenytoin26suppressed
BaclofenBaclofen25suppressed
BudesonideBudesonide23suppressed
Ipratropium BromideIpratropium Bromide22suppressed
Montelukast SodiumMontelukast Sodium22suppressed
GlycopyrrolateGlycopyrrolate19suppressed
LisinoprilLisinopril19suppressed
LactuloseLactulose17suppressed
Potassium ChloridePotassium Chloride16suppressed
Ipratropium-AlbuterolIpratropium/Albuterol Sulfate15suppressed
Quetiapine FumarateQuetiapine Fumarate15suppressed
Valproic AcidValproic Acid (As Sodium Salt)15suppressed
Albuterol SulfateAlbuterol Sulfate14suppressed
Triamcinolone AcetonideTriamcinolone Acetonide14suppressed
Hydroxyzine PamoateHydroxyzine Pamoate13suppressed
Tamsulosin HclTamsulosin Hcl13suppressed
Enalapril MaleateEnalapril Maleate12suppressed
LamotrigineLamotrigine12suppressed
Metoprolol TartrateMetoprolol Tartrate11suppressed

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 $219.06 · 9 records JAZZ PHARMACEUTICALS INC. ABILIFY ASIMTUFII, ARISTADA, Auvelity, COBENFY, EPIDIOLEX, FANAPT, INVEGA SUSTENNA, LYBALVI 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