Healthcare provider profile · identity verified

Nathan C Hitzeman, M.D.

Family Practice · SACRAMENTO, CA · NPI 1518069269

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
Atorvastatin CalciumAtorvastatin Calcium17458
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen14225
GabapentinGabapentin8728
Levothyroxine SodiumLevothyroxine Sodium7825
Amlodipine BesylateAmlodipine Besylate7724
Losartan PotassiumLosartan Potassium7527
Metformin Hcl ErMetformin Hcl7217
LisinoprilLisinopril6723
HydrochlorothiazideHydrochlorothiazide5920
Metoprolol SuccinateMetoprolol Succinate5821
Alendronate SodiumAlendronate Sodium5217
Tamsulosin HclTamsulosin Hcl5018
OmeprazoleOmeprazole4813
Trazodone HclTrazodone Hcl4419
AllopurinolAllopurinol43suppressed
DiazepamDiazepam35suppressed
Pantoprazole SodiumPantoprazole Sodium33suppressed
ValsartanValsartan3212
OzempicSemaglutide30suppressed
Metoprolol TartrateMetoprolol Tartrate29suppressed
Morphine Sulfate ErMorphine Sulfate29suppressed
EliquisApixaban28suppressed
Potassium ChloridePotassium Chloride28suppressed
Metformin HclMetformin Hcl25suppressed
Albuterol Sulfate HfaAlbuterol Sulfate24suppressed
Fluticasone PropionateFluticasone Propionate24suppressed
Zolpidem TartrateZolpidem Tartrate24suppressed
TopiramateTopiramate23suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl22suppressed
Rosuvastatin CalciumRosuvastatin Calcium22suppressed
AtenololAtenolol21suppressed
FamotidineFamotidine21suppressed
GlimepirideGlimepiride20suppressed
Sumatriptan SuccinateSumatriptan Succinate20suppressed
Diclofenac SodiumDiclofenac Sodium19suppressed
Fluoxetine HclFluoxetine Hcl19suppressed
JardianceEmpagliflozin19suppressed
Meclizine HclMeclizine Hcl19suppressed
Montelukast SodiumMontelukast Sodium18suppressed
NystatinNystatin18suppressed
Oxybutynin Chloride ErOxybutynin Chloride18suppressed
BaclofenBaclofen17suppressed
BicalutamideBicalutamide17suppressed
LorazepamLorazepam17suppressed
Pioglitazone HclPioglitazone Hcl17suppressed
Tramadol HclTramadol Hcl17suppressed
ClonazepamClonazepam16suppressed
Breo ElliptaFluticasone/Vilanterol15suppressed
CelecoxibCelecoxib15suppressed
Sertraline HclSertraline Hcl15suppressed
SimvastatinSimvastatin15suppressed
Triamcinolone AcetonideTriamcinolone Acetonide15suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid15suppressed
Zolpidem Tartrate ErZolpidem Tartrate15suppressed
AmoxicillinAmoxicillin14suppressed
CarvedilolCarvedilol14suppressed
Escitalopram OxalateEscitalopram Oxalate14suppressed
Felodipine ErFelodipine14suppressed
PremproEstrogen,con/M-Progest Acet14suppressed
FurosemideFurosemide13suppressed
IbuprofenIbuprofen13suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide13suppressed
Pravastatin SodiumPravastatin Sodium13suppressed
SpironolactoneSpironolactone13suppressed
Ventolin HfaAlbuterol Sulfate13suppressed
Doxazosin MesylateDoxazosin Mesylate12suppressed
Doxycycline HyclateDoxycycline Hyclate12suppressed
Hydroxyzine HclHydroxyzine Hcl12suppressed
LidocaineLidocaine12suppressed
MounjaroTirzepatide12suppressed
MyrbetriqMirabegron12suppressed
NitroglycerinNitroglycerin12suppressed
PrednisonePrednisone12suppressed
Ultra-Fine Mini Pen NeedlePen Needle, Diabetic12suppressed
Donepezil HclDonepezil Hcl11suppressed
FinasterideFinasteride11suppressed
IrbesartanIrbesartan11suppressed
OxycontinOxycodone 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
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