Healthcare provider profile · identity verified

Leonid V. Yankulin, MD

Nephrology · SAN FRANCISCO, CA · NPI 1326126962

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
FurosemideFurosemide17670
Amlodipine BesylateAmlodipine Besylate16757
Losartan PotassiumLosartan Potassium13647
Atorvastatin CalciumAtorvastatin Calcium13046
CalcitriolCalcitriol11142
Sevelamer CarbonateSevelamer Carbonate9740
Hydralazine HclHydralazine Hcl9436
AllopurinolAllopurinol9238
LisinoprilLisinopril9032
CarvedilolCarvedilol7732
JardianceEmpagliflozin7627
Metoprolol TartrateMetoprolol Tartrate6120
Levothyroxine SodiumLevothyroxine Sodium5018
Isosorbide Mononitrate ErIsosorbide Mononitrate4714
Midodrine HclMidodrine Hcl4112
Tamsulosin HclTamsulosin Hcl4113
GlipizideGlipizide4014
Pantoprazole SodiumPantoprazole Sodium3915
Metformin Hcl ErMetformin Hcl3814
LactuloseLactulose37suppressed
AtenololAtenolol3511
Cinacalcet HclCinacalcet Hcl35suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen35suppressed
Nifedipine ErNifedipine34suppressed
TelmisartanTelmisartan3411
MirtazapineMirtazapine32suppressed
ClonidineClonidine30suppressed
OmeprazoleOmeprazole2912
Lidocaine-PrilocaineLidocaine/Prilocaine28suppressed
Metformin HclMetformin Hcl28suppressed
PrednisonePrednisone2814
GabapentinGabapentin2616
ColchicineColchicine2512
Potassium ChloridePotassium Chloride2511
CephalexinCephalexin2214
EplerenoneEplerenone22suppressed
HydrochlorothiazideHydrochlorothiazide20suppressed
SpironolactoneSpironolactone20suppressed
TorsemideTorsemide20suppressed
VeltassaPatiromer Calcium Sorbitex20suppressed
Pravastatin SodiumPravastatin Sodium19suppressed
ChlorthalidoneChlorthalidone17suppressed
Albuterol Sulfate HfaAlbuterol Sulfate16suppressed
Gentamicin SulfateGentamicin Sulfate16suppressed
Ipratropium BromideIpratropium Bromide15suppressed
Trazodone HclTrazodone Hcl15suppressed
Insulin Glargine-YfgnInsulin Glargine-Yfgn14suppressed
Ciprofloxacin HclCiprofloxacin Hcl13suppressed
SimvastatinSimvastatin13suppressed
Terazosin HclTerazosin Hcl13suppressed
AmoxicillinAmoxicillin12suppressed
BumetanideBumetanide12suppressed
Clonidine HclClonidine Hcl12suppressed
Felodipine ErFelodipine12suppressed
Fluticasone PropionateFluticasone Propionate11suppressed
LidocaineLidocaine11suppressed
LovastatinLovastatin11suppressed
Memantine HclMemantine Hcl11suppressed
Veo Insulin SyringeSyringe-Needle,insulin,0.5 Ml11suppressed

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