Healthcare provider profile · identity verified

Maan Barhoum, M.D.

Endocrinology · LIBERTYVILLE, IL · NPI 1114993979

Profile state: partd only 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

We did not find matching Open Payments records for this doctor in 2025.

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

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

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.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

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.

There is no payer-company set available for this comparison.

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
Levothyroxine SodiumLevothyroxine Sodium743148
OzempicSemaglutide51495
JardianceEmpagliflozin48794
SynthroidLevothyroxine Sodium44284
Metformin HclMetformin Hcl396103
TrulicityDulaglutide25243
Atorvastatin CalciumAtorvastatin Calcium24069
FarxigaDapagliflozin Propanediol22343
RepaglinideRepaglinide17949
Alendronate SodiumAlendronate Sodium17447
Pioglitazone HclPioglitazone Hcl12829
Rosuvastatin CalciumRosuvastatin Calcium12434
MethimazoleMethimazole11525
MounjaroTirzepatide10919
Lantus SolostarInsulin Glargine,hum.Rec.Anlog10029
UnithroidLevothyroxine Sodium9216
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog8625
Humalog Kwikpen U-100Insulin Lispro8322
Metformin Hcl ErMetformin Hcl8122
Nano 2nd Gen Pen NeedlePen Needle, Diabetic7526
Tresiba Flextouch U-100Insulin Degludec7523
EzetimibeEzetimibe7218
Novolog FlexpenInsulin Aspart7222
Vitamin D2Ergocalciferol (Vitamin D2)6814
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic6726
TradjentaLinagliptin6415
LisinoprilLisinopril4814
Synjardy XrEmpagliflozin/Metformin Hcl46suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/738suppressed
LevoxylLevothyroxine Sodium34suppressed
Losartan PotassiumLosartan Potassium3411
Fiasp FlextouchInsulin Aspart (Niacinamide)3311
JanuviaSitagliptin Phosphate33suppressed
Pravastatin SodiumPravastatin Sodium24suppressed
HydrocortisoneHydrocortisone23suppressed
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters23suppressed
NovologInsulin Aspart22suppressed
GlipizideGlipizide20suppressed
Insulin Lispro Kwikpen U-100Insulin Lispro20suppressed
TestosteroneTestosterone19suppressed
Xigduo XrDapaglifloz Propaned/Metformin18suppressed
GlimepirideGlimepiride17suppressed
LovastatinLovastatin17suppressed
VascepaIcosapent Ethyl17suppressed
Tresiba Flextouch U-200Insulin Degludec16suppressed
HumalogInsulin Lispro15suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog15suppressed
Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog14suppressed
Ultra-Fine Short Pen NeedlePen Needle, Diabetic14suppressed
GabapentinGabapentin13suppressed
LantusInsulin Glargine,hum.Rec.Anlog13suppressed
DapagliflozinDapagliflozin Propanediol1211
RamiprilRamipril12suppressed
Risedronate SodiumRisedronate Sodium12suppressed
Cinacalcet HclCinacalcet Hcl11suppressed
FenofibrateFenofibrate11suppressed
Gvoke Hypopen 2-PackGlucagon11suppressed
Novolin 70-30 FlexpenInsulin Nph Hum/Reg Insulin Hm11suppressed
TeriparatideTeriparatide11suppressed
Ultra-Fine Original 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
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