Healthcare provider profile · identity verified

Delia Mihaela Stefan, MD

Endocrinology · FISHKILL, NY · NPI 1003019613

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
MounjaroTirzepatide35868
Metformin Hcl ErMetformin Hcl28596
JardianceEmpagliflozin25264
Levothyroxine SodiumLevothyroxine Sodium25065
SynthroidLevothyroxine Sodium18059
OzempicSemaglutide17745
Atorvastatin CalciumAtorvastatin Calcium16560
Metformin HclMetformin Hcl11734
Glipizide ErGlipizide10232
TrulicityDulaglutide9123
Tresiba Flextouch U-100Insulin Degludec8126
Nano 2nd Gen Pen NeedlePen Needle, Diabetic8041
Alendronate SodiumAlendronate Sodium7728
Novolog FlexpenInsulin Aspart7125
Rosuvastatin CalciumRosuvastatin Calcium6726
RybelsusSemaglutide6519
TirosintLevothyroxine Sodium48suppressed
Humalog Kwikpen U-100Insulin Lispro4419
SimvastatinSimvastatin4414
Tresiba Flextouch U-200Insulin Degludec4213
Ultra-Fine Nano Pen NeedlePen Needle, Diabetic3616
Vitamin D2Ergocalciferol (Vitamin D2)3412
TradjentaLinagliptin32suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog3011
Omega-3 Acid Ethyl EstersOmega-3 Acid Ethyl Esters30suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic2915
ForteoTeriparatide27suppressed
Humalog Mix 75-25 KwikpenInsulin Lispro Protamin/Lispro27suppressed
JanuviaSitagliptin Phosphate27suppressed
Toujeo Max SolostarInsulin Glargine,hum.Rec.Anlog26suppressed
CalcitriolCalcitriol2512
Toujeo SolostarInsulin Glargine,hum.Rec.Anlog25suppressed
Synjardy XrEmpagliflozin/Metformin Hcl24suppressed
Pioglitazone HclPioglitazone Hcl23suppressed
FarxigaDapagliflozin Propanediol22suppressed
TeriparatideTeriparatide22suppressed
GlimepirideGlimepiride20suppressed
LisinoprilLisinopril19suppressed
NovologInsulin Aspart19suppressed
GlipizideGlipizide17suppressed
Fiasp FlextouchInsulin Aspart (Niacinamide)16suppressed
Novolog Mix 70-30 FlexpenInsulin Aspart Prot/Insuln Asp16suppressed
Admelog SolostarInsulin Lispro15suppressed
DexamethasoneDexamethasone1513
HydrochlorothiazideHydrochlorothiazide15suppressed
Janumet XrSitagliptin Phos/Metformin Hcl14suppressed
Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/714suppressed
Pravastatin SodiumPravastatin Sodium14suppressed
SpironolactoneSpironolactone14suppressed
FamotidineFamotidine12suppressed
MethimazoleMethimazole12suppressed
TestosteroneTestosterone12suppressed
HumalogInsulin Lispro11suppressed
Humalog Kwikpen U-200Insulin Lispro11suppressed
Losartan PotassiumLosartan Potassium11suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide11suppressed
Risedronate SodiumRisedronate Sodium11suppressed

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