Healthcare provider profile · identity verified

Peter Koopman, MD

Family Practice · COLUMBIA, MO · NPI 1376526913

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

Brand	Generic	Claims	Beneficiaries
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	189	21
Oxycodone Hcl	Oxycodone Hcl	186	22
Atorvastatin Calcium	Atorvastatin Calcium	162	40
Omeprazole	Omeprazole	160	25
Lisinopril	Lisinopril	155	38
Clonazepam	Clonazepam	151	22
Gabapentin	Gabapentin	126	21
Levothyroxine Sodium	Levothyroxine Sodium	126	23
Alprazolam	Alprazolam	115	14
Albuterol Sulfate Hfa	Albuterol Sulfate	108	22
Fluticasone Propionate	Fluticasone Propionate	108	21
Pregabalin	Pregabalin	105	16
Ozempic	Semaglutide	96	13
Amlodipine Besylate	Amlodipine Besylate	94	22
Metformin Hcl	Metformin Hcl	84	17
Tamsulosin Hcl	Tamsulosin Hcl	81	12
Pantoprazole Sodium	Pantoprazole Sodium	77	18
Losartan Potassium	Losartan Potassium	75	22
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	73	13
Hydrochlorothiazide	Hydrochlorothiazide	72	17
Trazodone Hcl	Trazodone Hcl	71	12
Duloxetine Hcl	Duloxetine Hcl	67	14
Meloxicam	Meloxicam	65	16
Metoprolol Succinate	Metoprolol Succinate	63	suppressed
Fentanyl	Fentanyl	61	suppressed
Montelukast Sodium	Montelukast Sodium	60	17
Metformin Hcl Er	Metformin Hcl	57	16
Jardiance	Empagliflozin	56	suppressed
Furosemide	Furosemide	54	14
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	51	14
Dicyclomine Hcl	Dicyclomine Hcl	49	suppressed
Simvastatin	Simvastatin	49	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	49	suppressed
Spironolactone	Spironolactone	48	suppressed
Mirtazapine	Mirtazapine	46	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	44	12
Famotidine	Famotidine	43	suppressed
Potassium Chloride	Potassium Chloride	43	11
Sertraline Hcl	Sertraline Hcl	42	suppressed
Baclofen	Baclofen	40	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	40	suppressed
Tramadol Hcl	Tramadol Hcl	40	suppressed
Tizanidine Hcl	Tizanidine Hcl	39	suppressed
Citalopram Hbr	Citalopram Hydrobromide	38	suppressed
Carisoprodol	Carisoprodol	37	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	37	suppressed
Lovastatin	Lovastatin	37	suppressed
Diazepam	Diazepam	36	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	33	suppressed
Cholestyramine Light	Cholestyramine	32	suppressed
Rosuvastatin Calcium	Rosuvastatin Calcium	32	suppressed
Eliquis	Apixaban	31	suppressed
Morphine Sulfate Er	Morphine Sulfate	31	suppressed
Celecoxib	Celecoxib	29	suppressed
Chlorthalidone	Chlorthalidone	29	suppressed
Januvia	Sitagliptin Phosphate	29	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	29	suppressed
Valsartan	Valsartan	29	suppressed
Prazosin Hcl	Prazosin Hcl	28	suppressed
Ventolin Hfa	Albuterol Sulfate	28	suppressed
Allopurinol	Allopurinol	26	suppressed
Oxycontin	Oxycodone Hcl	26	suppressed
Hydralazine Hcl	Hydralazine Hcl	25	suppressed
Pravastatin Sodium	Pravastatin Sodium	24	suppressed
Propranolol Hcl	Propranolol Hcl	24	suppressed
Lamotrigine	Lamotrigine	22	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	22	suppressed
Clopidogrel	Clopidogrel Bisulfate	21	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	21	suppressed
Glimepiride	Glimepiride	21	suppressed
Topiramate	Topiramate	21	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	20	suppressed
Glipizide Er	Glipizide	20	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	20	suppressed
Finasteride	Finasteride	19	suppressed
Lorazepam	Lorazepam	19	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	19	suppressed
Ropinirole Hcl	Ropinirole Hcl	19	suppressed
Atenolol	Atenolol	18	suppressed
Insulin Lispro Kwikpen U-100	Insulin Lispro	17	suppressed
Ondansetron Odt	Ondansetron	17	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	17	suppressed
Nortrel	Norethindrone-Ethin. Estradiol	16	suppressed
Techlite Pen Needle	Pen Needle, Diabetic	16	suppressed
Clonidine Hcl	Clonidine Hcl	15	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	15	suppressed
Donepezil Hcl	Donepezil Hcl	15	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	15	suppressed
Single Use Swab	Alcohol Antiseptic Pads	15	suppressed
Trulicity	Dulaglutide	15	suppressed
Loperamide	Loperamide Hcl	14	suppressed
Mometasone Furoate	Mometasone Furoate	14	suppressed
Piroxicam	Piroxicam	14	suppressed
Xtampza Er	Oxycodone Myristate	14	suppressed
Colchicine	Colchicine	13	suppressed
Cyproheptadine Hcl	Cyproheptadine Hcl	13	suppressed
Estradiol	Estradiol	13	suppressed
Fenofibrate	Fenofibrate,micronized	13	suppressed
Glipizide	Glipizide	13	suppressed
Glycopyrrolate	Glycopyrrolate	13	suppressed
Humalog Kwikpen U-100	Insulin Lispro	13	suppressed
Humulin 70-30	Insulin Nph Hum/Reg Insulin Hm	13	suppressed
Isosorbide Dinitrate	Isosorbide Dinitrate	13	suppressed
Nano 2nd Gen Pen Needle	Pen Needle, Diabetic	13	suppressed
Nystatin	Nystatin	13	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	13	suppressed
Propranolol Hcl Er	Propranolol Hcl	13	suppressed
Solifenacin Succinate	Solifenacin Succinate	13	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	13	suppressed
Xarelto	Rivaroxaban	13	suppressed
Armodafinil	Armodafinil	12	suppressed
Azithromycin	Azithromycin	12	12
Belbuca	Buprenorphine Hcl	12	suppressed
Buspirone Hcl	Buspirone Hcl	12	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	12	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	12	suppressed
Nebivolol Hcl	Nebivolol Hcl	12	suppressed
Nifedipine Er	Nifedipine	12	suppressed
Prednisone	Prednisone	12	suppressed
Warfarin Sodium	Warfarin Sodium	12	suppressed
Aripiprazole	Aripiprazole	11	suppressed
Bupropion Xl	Bupropion Hcl	11	suppressed
Dexlansoprazole Dr	Dexlansoprazole	11	suppressed
Ondansetron Hcl	Ondansetron Hcl	11	suppressed
Testosterone Cypionate	Testosterone Cypionate	11	suppressed

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.

Year	General Payments	Main payer	Explicit products	Company overlaps	Part D coverage
2025	—	—	—	—	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

Are there reasonable alternatives I should understand when we discuss treatment options?
How should I interpret the industry-payment records shown here in the context of my care?

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.

Loaded source releases

Dataset	Year	Publication	Source
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