Healthcare provider profile · identity verified

John B Buse, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism · CHAPEL HILL, NC · NPI 1336164680

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 John B Buse, MD received $87,607.66 in general payments during 2025 across 52 reported records.

Novo Nordisk AS accounted for 28.6% of that reported general-payment amount.

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

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 12 claims for Farxiga by this doctor in 2024.

Eli Lilly and Company reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported JARDIANCE as an associated drug or biological on 15 records involving 11 distinct recipient NPIs. Public Medicare Part D data also shows 66 claims for Jardiance by this doctor in 2024.

Eli Lilly and Company reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported MOUNJARO as an associated drug or biological on 176 records involving 33 distinct recipient NPIs. Public Medicare Part D data also shows 50 claims for Mounjaro by this doctor in 2024.

Novo Nordisk AS reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Ozempic as an associated drug or biological on 13 records involving 3 distinct recipient NPIs. Public Medicare Part D data also shows 92 claims for Ozempic by this doctor in 2024.

Novo Nordisk 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 Ozempic as an associated drug or biological on 261625 records involving 77793 distinct recipient NPIs. Public Medicare Part D data also shows 92 claims for Ozempic by this doctor in 2024.

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

Payment overview · 2025

General Payments

$87,607.66

52 reported records · 8 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
Novo Nordisk AS Unresolved — no canonical attribution shown $25,028.5528.6%102025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $16,616.0019.0%132025
Eli Lilly and Company Unresolved — no canonical attribution shown $11,513.6013.1%32025
RECORDATI_RARE_DISEASES_INC. Unresolved — no canonical attribution shown $9,136.3710.4%72025
VERTEX PHARMACEUTICALS INCORPORATED Unresolved — no canonical attribution shown $7,635.648.7%132025
Amgen Inc. Unresolved — no canonical attribution shown $7,077.508.1%32025
Corcept Therapeutics Unresolved — no canonical attribution shown $6,100.007.0%22025
Novo Nordisk Inc Unresolved — no canonical attribution shown $4,500.005.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$53,401.0021
Travel and Lodging$18,275.2717
Honoraria$8,000.001
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$6,822.763
Food and Beverage$1,108.6310

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
OSILODROSTAT
Normalized: osilodrostat
Drug RECORDATI_RARE_DISEASES_INC. $9,136.37 7 2025
Source payment records
Korlym
Normalized: korlym
Drug Corcept Therapeutics $6,100.00 2 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

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.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
12 suppressed by CMS
Eli Lilly and Company
Exact reporting entity; no affiliate inference
2025 JARDIANCE
open payments reported associated product
CMS Open Payments — General Payments
15 supporting records · 11 recipient NPIs · example record 1186556234
Jardiance · 2024
Exact normalized brand match · 1 Part D row
66 18
Eli Lilly and Company
Exact reporting entity; no affiliate inference
2025 MOUNJARO
open payments reported associated product
CMS Open Payments — General Payments
176 supporting records · 33 recipient NPIs · example record 1186466331
Mounjaro · 2024
Exact normalized brand match · 1 Part D row
50 suppressed by CMS
Novo Nordisk AS
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
13 supporting records · 3 recipient NPIs · example record 1189186035
Ozempic · 2024
Exact normalized brand match · 1 Part D row
92 21
Novo Nordisk Inc
Exact reporting entity; no affiliate inference
2025 Ozempic
open payments reported associated product
CMS Open Payments — General Payments
261625 supporting records · 77793 recipient NPIs · example record 1188130076
Ozempic · 2024
Exact normalized brand match · 1 Part D row
92 21

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
Metformin HclMetformin Hcl11935
Atorvastatin CalciumAtorvastatin Calcium11234
OzempicSemaglutide9221
Rosuvastatin CalciumRosuvastatin Calcium8728
JardianceEmpagliflozin6618
Levothyroxine SodiumLevothyroxine Sodium6519
Metformin Hcl ErMetformin Hcl51suppressed
MounjaroTirzepatide50suppressed
Losartan PotassiumLosartan Potassium4915
Tresiba Flextouch U-100Insulin Degludec4116
LisinoprilLisinopril4012
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3011
SynthroidLevothyroxine Sodium29suppressed
EzetimibeEzetimibe27suppressed
Nano 2nd Gen Pen NeedlePen Needle, Diabetic2513
Amlodipine BesylateAmlodipine Besylate22suppressed
CarvedilolCarvedilol22suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/720suppressed
GabapentinGabapentin19suppressed
GlimepirideGlimepiride19suppressed
Tresiba Flextouch U-200Insulin Degludec19suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic19suppressed
Novolog FlexpenInsulin Aspart15suppressed
SimvastatinSimvastatin15suppressed
HydrochlorothiazideHydrochlorothiazide14suppressed
Pioglitazone HclPioglitazone Hcl14suppressed
TopiramateTopiramate13suppressed
AtenololAtenolol12suppressed
ClopidogrelClopidogrel Bisulfate12suppressed
FarxigaDapagliflozin Propanediol12suppressed
Humalog Kwikpen U-100Insulin Lispro12suppressed
LantusInsulin Glargine,hum.Rec.Anlog12suppressed
Metoprolol SuccinateMetoprolol Succinate12suppressed
ChlorthalidoneChlorthalidone11suppressed
HumalogInsulin Lispro11suppressed
Insulin LisproInsulin Lispro11suppressed
SpironolactoneSpironolactone11suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic11suppressed

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 $87,607.66 · 52 records Novo Nordisk AS Korlym, OSILODROSTAT 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