Healthcare provider profile · identity verified

Julian Ambrus, MD

Allopathic & Osteopathic Physicians|Internal Medicine|Allergy & Immunology · WILLIAMSVILLE, NY · NPI 1811919988

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 Julian Ambrus, MD received $1,679.81 in general payments during 2025 across 81 reported records.

ABBVIE INC. accounted for 19.1% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 34 associated products.

CSL Behring reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Hizentra as an associated drug or biological on 13634 records involving 4691 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Hizentra by this doctor in 2024.

CSL Behring reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Privigen as an associated drug or biological on 464 records involving 289 distinct recipient NPIs. Public Medicare Part D data also shows 63 claims for Privigen by this doctor in 2024.

Grifols USA, LLC reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported Gamunex-C as an associated drug or biological on 3977 records involving 2134 distinct recipient NPIs. Public Medicare Part D data also shows 98 claims for Gamunex-C by this doctor in 2024.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 20 claims for Eliquis by this doctor in 2024.

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

Payment overview · 2025

General Payments

$1,679.81

81 reported records · 24 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
ABBVIE INC. Unresolved — no canonical attribution shown $321.5719.1%152025
Amgen Inc. Unresolved — no canonical attribution shown $226.2113.5%122025
BioCryst US Sales Co., LLC Unresolved — no canonical attribution shown $184.5611.0%102025
UCB, Inc. Unresolved — no canonical attribution shown $144.408.6%62025
Regeneron Healthcare Solutions, Inc. Unresolved — no canonical attribution shown $101.826.1%52025
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $80.634.8%32025
Takeda Pharmaceuticals U.S.A., Inc. Unresolved — no canonical attribution shown $71.284.2%32025
Exact Sciences Corporation Unresolved — no canonical attribution shown $61.843.7%32025
GENZYME CORPORATION Unresolved — no canonical attribution shown $54.803.3%32025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $53.413.2%32025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $47.512.8%22025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $43.252.6%22025
PFIZER INC. Unresolved — no canonical attribution shown $38.782.3%22025
SOBI, INC Unresolved — no canonical attribution shown $34.262.0%22025
Boehringer Ingelheim Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $28.851.7%12025
Ionis Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $28.241.7%12025
Grifols USA, LLC Unresolved — no canonical attribution shown $27.381.6%12025
Novo Nordisk Inc Unresolved — no canonical attribution shown $24.751.5%12025
Agios Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $21.451.3%12025
Merck Sharp & Dohme LLC Unresolved — no canonical attribution shown $21.231.3%12025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $19.061.1%12025
Cycle Pharmaceuticals Inc Unresolved — no canonical attribution shown $17.401.0%12025
Lilly USA, LLC Unresolved — no canonical attribution shown $13.580.8%12025
CSL Behring Unresolved — no canonical attribution shown $13.550.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,679.8181

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
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $219.66 10 2025
Source payment records
ORLADEYO
Normalized: orladeyo
Drug BioCryst US Sales Co., LLC $184.56 10 2025
Source payment records
Bimzelx
Normalized: bimzelx
Biological UCB, Inc. $144.40 6 2025
Source payment records
DUPIXENT
Normalized: dupixent
Biological GENZYME CORPORATION, Regeneron Healthcare Solutions, Inc. $135.02 7 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $105.87 5 2025
Source payment records
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $101.91 5 2025
Source payment records
SAPHNELO
Normalized: saphnelo
Biological AstraZeneca Pharmaceuticals LP $80.63 3 2025
Source payment records
CUVITRU
Normalized: cuvitru
Biological Takeda Pharmaceuticals U.S.A., Inc. $55.26 2 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $53.41 3 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $47.11 3 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $47.11 3 2025
Source payment records
Cologuard Collection Kit
Normalized: cologuard collection kit
Device Exact Sciences Corporation $43.88 2 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $43.25 2 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $38.78 2 2025
Source payment records
PAXLOVID
Normalized: paxlovid
Drug PFIZER INC. $38.78 2 2025
Source payment records
Kineret
Normalized: kineret
Drug SOBI, INC $34.26 2 2025
Source payment records
BENLYSTA
Normalized: benlysta
Biological GlaxoSmithKline, LLC. $30.02 1 2025
Source payment records
DAWNZERA
Normalized: dawnzera
Drug Ionis Pharmaceuticals, Inc. $28.24 1 2025
Source payment records
Xembify
Normalized: xembify
Biological Grifols USA, LLC $27.38 1 2025
Source payment records
Ozempic
Normalized: ozempic
Drug Novo Nordisk Inc $24.75 1 2025
Source payment records
Rybelsus
Normalized: rybelsus
Drug Novo Nordisk Inc $24.75 1 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $24.08 1 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $22.07 1 2025
Source payment records
AYVAKIT
Normalized: ayvakit
Biological GENZYME CORPORATION $21.60 1 2025
Source payment records
PYRUKYND
Normalized: pyrukynd
Drug Agios Pharmaceuticals, Inc. $21.45 1 2025
Source payment records
LAGEVRIO
Normalized: lagevrio
Drug Merck Sharp & Dohme LLC $21.23 1 2025
Source payment records
VERQUVO
Normalized: verquvo
Drug Merck Sharp & Dohme LLC $21.23 1 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.06 1 2025
Source payment records
  • 2025-11-24 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $19.06 · Open Payments source
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $17.96 1 2025
Source payment records
TRELEGY ELLIPTA
Normalized: trelegy ellipta
Drug GlaxoSmithKline, LLC. $17.49 1 2025
Source payment records
Sajazir
Normalized: sajazir
Drug Cycle Pharmaceuticals Inc $17.40 1 2025
Source payment records
TRINTELLIX
Normalized: trintellix
Drug Takeda Pharmaceuticals U.S.A., Inc. $16.02 1 2025
Source payment records
JARDIANCE
Normalized: jardiance
Drug Lilly USA, LLC $13.58 1 2025
Source payment records
Andembry
Normalized: andembry
Biological CSL Behring $13.55 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

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
CSL Behring
Exact reporting entity; no affiliate inference
2025 Hizentra
open payments reported associated product
CMS Open Payments — General Payments
13634 supporting records · 4691 recipient NPIs · example record 1232339012
Hizentra · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS
CSL Behring
Exact reporting entity; no affiliate inference
2025 Privigen
open payments reported associated product
CMS Open Payments — General Payments
464 supporting records · 289 recipient NPIs · example record 1232339064
Privigen · 2024
Exact normalized brand match · 1 Part D row
63 suppressed by CMS
Grifols USA, LLC
Exact reporting entity; no affiliate inference
2025 Gamunex-C
open payments reported associated product
CMS Open Payments — General Payments
3977 supporting records · 2134 recipient NPIs · example record 1249529381
Gamunex-C · 2024
Exact normalized brand match · 1 Part D row
98 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
87112 supporting records · 36032 recipient NPIs · example record 1228794063
Eliquis · 2024
Exact normalized brand match · 1 Part D row
20 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
LevocarnitineLevocarnitine657169
Hydroxychloroquine SulfateHydroxychloroquine Sulfate28558
Azelastine HclAzelastine Hcl20284
Cevimeline HclCevimeline Hcl17741
Folic AcidFolic Acid17139
Verapamil HclVerapamil Hcl16354
Cyproheptadine HclCyproheptadine Hcl14830
NimodipineNimodipine13547
Fluticasone PropionateFluticasone Propionate12938
MeloxicamMeloxicam12132
CilostazolCilostazol10931
Gamunex-CImmune Globul G/Gly/Iga Avg 4698suppressed
Diphenhydramine HclDiphenhydramine Hcl84suppressed
Levocetirizine DihydrochlorideLevocetirizine Dihydrochloride8018
Doxazosin MesylateDoxazosin Mesylate7720
Pilocarpine HclPilocarpine Hcl7225
Budesonide DrBudesonide7021
MesalamineMesalamine6312
PrivigenImmun Glob G(Igg)/Pro/Iga 0-5063suppressed
Verapamil SrVerapamil Hcl6326
MethotrexateMethotrexate Sodium5811
BaclofenBaclofen5516
Pantoprazole SodiumPantoprazole Sodium53suppressed
GabapentinGabapentin5112
OmeprazoleOmeprazole5116
Potassium ChloridePotassium Chloride5114
Verapamil ErVerapamil Hcl5021
Amitriptyline HclAmitriptyline Hcl4911
AzithromycinAzithromycin4834
Ondansetron HclOndansetron Hcl/Pf48suppressed
PentoxifyllinePentoxifylline4713
Montelukast SodiumMontelukast Sodium4211
PrednisonePrednisone40suppressed
Dextrose In WaterDextrose 70 % In Water39suppressed
Enoxaparin SodiumEnoxaparin Sodium39suppressed
Budesonide EcBudesonide3815
SulfasalazineSulfasalazine38suppressed
Nicardipine HclNicardipine Hcl3411
Albuterol SulfateAlbuterol Sulfate33suppressed
Albuterol Sulfate HfaAlbuterol Sulfate3315
Doxycycline HyclateDoxycycline Hyclate3218
DiazepamDiazepam31suppressed
ValacyclovirValacyclovir Hcl31suppressed
ErythromycinErythromycin Base29suppressed
Levothyroxine SodiumLevothyroxine Sodium2812
Fluticasone-SalmeterolFluticasone Propion/Salmeterol2711
Diclofenac SodiumDiclofenac Sodium26suppressed
Zolpidem TartrateZolpidem Tartrate26suppressed
CelecoxibCelecoxib25suppressed
ColchicineColchicine25suppressed
FluconazoleFluconazole2411
Ondansetron OdtOndansetron24suppressed
PregabalinPregabalin23suppressed
Vitamin D2Ergocalciferol (Vitamin D2)22suppressed
Budesonide ErBudesonide20suppressed
EliquisApixaban20suppressed
FamotidineFamotidine20suppressed
LorazepamLorazepam20suppressed
CarvedilolCarvedilol19suppressed
Nifedipine ErNifedipine19suppressed
Clonidine HclClonidine Hcl1813
LeflunomideLeflunomide18suppressed
LevocarnitineLevocarnitine (With Sugar)18suppressed
AlprazolamAlprazolam17suppressed
AcyclovirAcyclovir16suppressed
Metoprolol SuccinateMetoprolol Succinate16suppressed
Sumatriptan SuccinateSumatriptan Succinate16suppressed
FurosemideFurosemide15suppressed
SucralfateSucralfate15suppressed
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav14suppressed
Doxycycline MonohydrateDoxycycline Monohydrate14suppressed
AzathioprineAzathioprine13suppressed
FentanylFentanyl13suppressed
FragminDalteparin Sodium,porcine13suppressed
HizentraImmun Glob G(Igg)/Pro/Iga 0-5013suppressed
Labetalol HclLabetalol Hcl13suppressed
Alendronate SodiumAlendronate Sodium12suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl12suppressed
EpinephrineEpinephrine1211
Humira(Cf) PenAdalimumab12suppressed
Hydroxyzine HclHydroxyzine Hcl12suppressed
Liothyronine SodiumLiothyronine Sodium12suppressed
Magnesium SulfateMagnesium Sulfate12suppressed
Potassium Citrate ErPotassium Citrate12suppressed
ScopolamineScopolamine12suppressed
Solu-CortefHydrocortisone Sodium Succ/Pf12suppressed
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid12suppressed
Valganciclovir HclValganciclovir Hcl12suppressed
Cromolyn SodiumCromolyn Sodium11suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed
Fludrocortisone AcetateFludrocortisone Acetate11suppressed
Ondansetron HclOndansetron Hcl11suppressed
Prazosin HclPrazosin 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 $1,679.81 · 81 records ABBVIE INC. ACTHAR, AYVAKIT, Andembry, BENLYSTA, Bimzelx, CUVITRU, Cologuard Collection Kit, DAWNZERA, DUPIXENT, EVENITY, JARDIANCE, Kineret, LAGEVRIO, NURTEC ODT, ORLADEYO, OTEZLA, Ozempic, PAXLOVID, PROLIA, PYRUKYND, RINVOQ, Rybelsus, SAPHNELO, SKYRIZI, Sajazir, TAVNEOS, TRELEGY ELLIPTA, TREMFYA, TRINTELLIX, The Cologuard Plus Collection Kit, UPLIZNA, VERQUVO, XIFAXAN, Xembify 4
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