Healthcare provider profile · identity verified

Amos Charles Johnson, M.D.

Allopathic & Osteopathic Physicians|Internal Medicine · SOUTHFIELD, MI · NPI 1801805270

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 Amos Charles Johnson, M.D. received $646.87 in general payments during 2025 across 13 reported records.

Amgen Inc. accounted for 45.7% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 7 associated products.

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

ABBVIE 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 LINZESS as an associated drug or biological on 87954 records involving 21815 distinct recipient NPIs. Public Medicare Part D data also shows 15 claims for Linzess by this doctor in 2024.

Azurity Pharmaceuticals, 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 EDARBYCLOR as an associated drug or biological on 283 records involving 215 distinct recipient NPIs. Public Medicare Part D data also shows 29 claims for Edarbyclor by this doctor in 2024.

Bayer Healthcare Pharmaceuticals 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 Kerendia as an associated drug or biological on 138674 records involving 48458 distinct recipient NPIs. Public Medicare Part D data also shows 33 claims for Kerendia by this doctor in 2024.

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

Payment overview · 2025

General Payments

$646.87

13 reported records · 5 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
Amgen Inc. Unresolved — no canonical attribution shown $295.6545.7%52025
Bayer Healthcare Pharmaceuticals Inc. Unresolved — no canonical attribution shown $145.6722.5%22025
ABBVIE INC. Unresolved — no canonical attribution shown $134.6320.8%22025
Azurity Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $50.197.8%32025
Salix Pharmaceuticals, a division of Bausch Health US, LLC Unresolved — no canonical attribution shown $20.733.2%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$646.8713

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
REPATHA
Normalized: repatha
Biological Amgen Inc. $295.65 5 2025
Source payment records
Kerendia
Normalized: kerendia
Drug Bayer Healthcare Pharmaceuticals Inc. $145.67 2 2025
Source payment records
QULIPTA
Normalized: qulipta
Drug ABBVIE INC. $134.63 2 2025
Source payment records
AZMIRO
Normalized: azmiro
Drug Azurity Pharmaceuticals, Inc. $50.19 3 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $46.17 3 2025
Source payment records
XIFAXAN
Normalized: xifaxan
Drug Salix Pharmaceuticals, a division of Bausch Health US, LLC $20.73 1 2025
Source payment records
  • 2025-10-30 · Salix Pharmaceuticals, a division of Bausch Health US, LLC · $20.73 · Open Payments source
UBRELVY
Normalized: ubrelvy
Drug ABBVIE INC. $14.48 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
Kerendia
kerendia
2025 Kerendia 2024 33
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
ABBVIE INC.
Exact reporting entity; no affiliate inference
2025 LINZESS
open payments reported associated product
CMS Open Payments — General Payments
87954 supporting records · 21815 recipient NPIs · example record 1201352608
Linzess · 2024
Exact normalized brand match · 1 Part D row
15 suppressed by CMS
Azurity Pharmaceuticals, Inc.
Exact reporting entity; no affiliate inference
2025 EDARBYCLOR
open payments reported associated product
CMS Open Payments — General Payments
283 supporting records · 215 recipient NPIs · example record 1242666846
Edarbyclor · 2024
Exact normalized brand match · 1 Part D row
29 suppressed by CMS
Bayer Healthcare Pharmaceuticals Inc.
Exact reporting entity; no affiliate inference
2025 Kerendia
open payments reported associated product
CMS Open Payments — General Payments
138674 supporting records · 48458 recipient NPIs · example record 1225434663
Kerendia · 2024
Exact normalized brand match · 1 Part D row
33 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
Oxycodone HclOxycodone Hcl14314
Atorvastatin CalciumAtorvastatin Calcium11332
Rosuvastatin CalciumRosuvastatin Calcium11230
OmeprazoleOmeprazole11125
Amlodipine BesylateAmlodipine Besylate10123
TrulicityDulaglutide8312
SimvastatinSimvastatin6112
Losartan PotassiumLosartan Potassium6017
Albuterol Sulfate HfaAlbuterol Sulfate5312
Pioglitazone HclPioglitazone Hcl5313
AllopurinolAllopurinol4911
EzetimibeEzetimibe4814
AtenololAtenolol4712
GabapentinGabapentin4416
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen4411
Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen43suppressed
Metoprolol SuccinateMetoprolol Succinate42suppressed
Losartan-HydrochlorothiazideLosartan/Hydrochlorothiazide4115
Nifedipine ErNifedipine41suppressed
IndapamideIndapamide3915
Zolpidem TartrateZolpidem Tartrate39suppressed
AzithromycinAzithromycin3724
NaproxenNaproxen36suppressed
Metformin HclMetformin Hcl35suppressed
KerendiaFinerenone33suppressed
Amitriptyline HclAmitriptyline Hcl32suppressed
FarxigaDapagliflozin Propanediol32suppressed
Repatha SureclickEvolocumab32suppressed
CarvedilolCarvedilol30suppressed
FenofibrateFenofibrate30suppressed
SpironolactoneSpironolactone30suppressed
EdarbyclorAzilsartan Med/Chlorthalidone29suppressed
Tamsulosin HclTamsulosin Hcl29suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl28suppressed
HydrochlorothiazideHydrochlorothiazide28suppressed
Potassium ChloridePotassium Chloride27suppressed
Triamcinolone AcetonideTriamcinolone Acetonide27suppressed
FurosemideFurosemide26suppressed
Pantoprazole SodiumPantoprazole Sodium26suppressed
RepaglinideRepaglinide25suppressed
Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide24suppressed
ChlorthalidoneChlorthalidone23suppressed
Metformin Hcl ErMetformin Hcl23suppressed
PrednisonePrednisone23suppressed
Levothyroxine SodiumLevothyroxine Sodium22suppressed
PregabalinPregabalin22suppressed
Paroxetine HclParoxetine Hcl21suppressed
Clonidine HclClonidine Hcl20suppressed
Olmesartan-Amlodipine-HctzOlmesartan/Amlodipin/Hcthiazid20suppressed
Diclofenac Sodium ErDiclofenac Sodium19suppressed
Diltiazem 24hr Er (Cd)Diltiazem Hcl19suppressed
FenofibrateFenofibrate Nanocrystallized19suppressed
ClonazepamClonazepam18suppressed
Citalopram HbrCitalopram Hydrobromide16suppressed
Duloxetine HclDuloxetine Hcl16suppressed
MounjaroTirzepatide16suppressed
Acetaminophen-CodeineAcetaminophen With Codeine15suppressed
LinzessLinaclotide15suppressed
Mometasone FuroateMometasone Furoate15suppressed
Sevelamer CarbonateSevelamer Carbonate15suppressed
Amlodipine-OlmesartanAmlodipine Bes/Olmesartan Med14suppressed
Clotrimazole-BetamethasoneClotrimazole/Betamethasone Dip14suppressed
JardianceEmpagliflozin14suppressed
EliquisApixaban13suppressed
Ipratropium BromideIpratropium Bromide13suppressed
Klor-Con M20Potassium Chloride13suppressed
Telmisartan-HydrochlorothiazidTelmisartan/Hydrochlorothiazid13suppressed
AlprazolamAlprazolam12suppressed
Atenolol-ChlorthalidoneAtenolol/Chlorthalidone12suppressed
ColchicineColchicine12suppressed
Novolog FlexpenInsulin Aspart12suppressed
Pitavastatin CalciumPitavastatin Calcium12suppressed
ValacyclovirValacyclovir Hcl12suppressed
Butalbital-Acetaminophen-CaffeButalb/Acetaminophen/Caffeine11suppressed
Nebivolol HclNebivolol Hcl11suppressed
Pravastatin SodiumPravastatin 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 $646.87 · 13 records Amgen Inc. AZMIRO, Kerendia, OTEZLA, QULIPTA, REPATHA, UBRELVY, XIFAXAN 3
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