Healthcare provider profile · identity verified

Robert Niemann, N.P.

Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health · CLARKSVILLE, TN · NPI 1265738819

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 Robert Niemann, N.P. received $225.25 in general payments during 2025 across 10 reported records.

AstraZeneca Pharmaceuticals LP accounted for 46.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 5 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Farxiga.

AstraZeneca Pharmaceuticals LP reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported FARXIGA as an associated drug or biological on 106133 records involving 42906 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Farxiga by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. 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 27956 records involving 14870 distinct recipient NPIs. Public Medicare Part D data also shows 24 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

$225.25

10 reported records · 4 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
AstraZeneca Pharmaceuticals LP Unresolved — no canonical attribution shown $104.3746.3%62025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $51.8023.0%12025
Exact Sciences Corporation Unresolved — no canonical attribution shown $41.8018.6%22025
Axsome Therapeutics, Inc. Unresolved — no canonical attribution shown $27.2812.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$225.2510

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
BREZTRI
Normalized: breztri
Drug AstraZeneca Pharmaceuticals LP $65.41 4 2025
Source payment records
COBENFY
Normalized: cobenfy
Drug E.R. Squibb & Sons, L.L.C. $51.80 1 2025
Source payment records
The Cologuard Plus Collection Kit
Normalized: the cologuard plus collection kit
Device Exact Sciences Corporation $41.80 2 2025
Source payment records
FARXIGA
Normalized: farxiga
Drug AstraZeneca Pharmaceuticals LP $38.96 2 2025
Source payment records
Auvelity
Normalized: auvelity
Drug Axsome Therapeutics, Inc. $27.28 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

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
FARXIGA
farxiga
2025 Farxiga 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D

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
AstraZeneca Pharmaceuticals LP
Exact reporting entity; no affiliate inference
2025 FARXIGA
open payments reported associated product
CMS Open Payments — General Payments
106133 supporting records · 42906 recipient NPIs · example record 1206131362
Farxiga · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ELIQUIS
open payments reported associated product
CMS Open Payments — General Payments
27956 supporting records · 14870 recipient NPIs · example record 1184377713
Eliquis · 2024
Exact normalized brand match · 1 Part D row
24 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
Atorvastatin CalciumAtorvastatin Calcium21764
LisinoprilLisinopril18466
Levothyroxine SodiumLevothyroxine Sodium18153
Amlodipine BesylateAmlodipine Besylate17454
Metformin HclMetformin Hcl13448
Losartan PotassiumLosartan Potassium12943
SimvastatinSimvastatin12640
HydrochlorothiazideHydrochlorothiazide10735
OmeprazoleOmeprazole9932
FamotidineFamotidine7931
FurosemideFurosemide7624
Metoprolol SuccinateMetoprolol Succinate7022
Rosuvastatin CalciumRosuvastatin Calcium6416
Buspirone HclBuspirone Hcl6224
Trazodone HclTrazodone Hcl6124
Pantoprazole SodiumPantoprazole Sodium5516
Montelukast SodiumMontelukast Sodium5418
OzempicSemaglutide5417
Tamsulosin HclTamsulosin Hcl5419
GabapentinGabapentin5317
Fluticasone PropionateFluticasone Propionate4923
GlipizideGlipizide4914
Duloxetine HclDuloxetine Hcl4717
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide4311
Metoprolol TartrateMetoprolol Tartrate4314
Potassium ChloridePotassium Chloride4215
Fluoxetine HclFluoxetine Hcl4014
AtenololAtenolol3912
GlimepirideGlimepiride3912
Albuterol Sulfate HfaAlbuterol Sulfate3718
CarvedilolCarvedilol3714
ClopidogrelClopidogrel Bisulfate35suppressed
Pravastatin SodiumPravastatin Sodium3413
MeloxicamMeloxicam3215
Nifedipine ErNifedipine30suppressed
Ropinirole HclRopinirole Hcl27suppressed
Alendronate SodiumAlendronate Sodium26suppressed
Oxybutynin ChlorideOxybutynin Chloride26suppressed
PhenobarbitalPhenobarbital26suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter26suppressed
Citalopram HbrCitalopram Hydrobromide25suppressed
EliquisApixaban24suppressed
Glipizide ErGlipizide2413
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide22suppressed
Propranolol HclPropranolol Hcl21suppressed
JardianceEmpagliflozin20suppressed
AllopurinolAllopurinol19suppressed
FenofibrateFenofibrate Nanocrystallized19suppressed
LinzessLinaclotide19suppressed
Sertraline HclSertraline Hcl19suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid19suppressed
Zolpidem TartrateZolpidem Tartrate19suppressed
SpironolactoneSpironolactone18suppressed
Benazepril HclBenazepril Hcl17suppressed
BumetanideBumetanide17suppressed
Ciprofloxacin HclCiprofloxacin Hcl1613
Escitalopram OxalateEscitalopram Oxalate16suppressed
FenofibrateFenofibrate16suppressed
Metformin Hcl ErMetformin Hcl16suppressed
Warfarin SodiumWarfarin Sodium16suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone15suppressed
Bupropion Hcl SrBupropion Hcl15suppressed
JanuviaSitagliptin Phosphate15suppressed
MethylprednisoloneMethylprednisolone1513
Metoclopramide HclMetoclopramide Hcl15suppressed
Bupropion XlBupropion Hcl14suppressed
EzetimibeEzetimibe14suppressed
Isosorbide Mononitrate ErIsosorbide Mononitrate14suppressed
Lantus SolostarInsulin Glargine,hum.Rec.Anlog14suppressed
NystatinNystatin14suppressed
Amitriptyline HclAmitriptyline Hcl13suppressed
Amlodipine Besylate-BenazeprilAmlodipine Besylate/Benazepril13suppressed
Insulin SyringeSyring-Needl,disp,insul,0.3 Ml13suppressed
LovastatinLovastatin13suppressed
GemfibrozilGemfibrozil12suppressed
Phenytoin Sodium ExtendedPhenytoin Sodium Extended12suppressed
AzithromycinAzithromycin11suppressed
Clonidine HclClonidine Hcl11suppressed
ConstuloseLactulose11suppressed
FarxigaDapagliflozin Propanediol11suppressed

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 $225.25 · 10 records AstraZeneca Pharmaceuticals LP Auvelity, BREZTRI, COBENFY, FARXIGA, The Cologuard Plus Collection Kit 2
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