Healthcare provider profile · identity verified

Gregory L Pirkl, MD

Family Practice · SALEM, OR · NPI 1255591962

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
Atorvastatin Calcium	Atorvastatin Calcium	499	122
Amlodipine Besylate	Amlodipine Besylate	332	86
Levothyroxine Sodium	Levothyroxine Sodium	290	67
Omeprazole	Omeprazole	251	68
Losartan Potassium	Losartan Potassium	248	73
Lisinopril	Lisinopril	234	61
Metformin Hcl	Metformin Hcl	214	45
Gabapentin	Gabapentin	203	53
Metformin Hcl Er	Metformin Hcl	165	48
Hydrochlorothiazide	Hydrochlorothiazide	151	40
Metoprolol Succinate	Metoprolol Succinate	140	41
Trazodone Hcl	Trazodone Hcl	138	30
Sertraline Hcl	Sertraline Hcl	120	25
Simvastatin	Simvastatin	111	24
Pantoprazole Sodium	Pantoprazole Sodium	105	25
Tamsulosin Hcl	Tamsulosin Hcl	97	31
Meloxicam	Meloxicam	95	26
Oxycodone Hcl	Oxycodone Hcl	94	25
Fluoxetine Hcl	Fluoxetine Hcl	90	20
Glipizide Er	Glipizide	90	19
Rosuvastatin Calcium	Rosuvastatin Calcium	88	22
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	83	11
Metoprolol Tartrate	Metoprolol Tartrate	82	19
Albuterol Sulfate Hfa	Albuterol Sulfate	80	33
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	76	28
Alprazolam	Alprazolam	71	17
Oxybutynin Chloride	Oxybutynin Chloride	69	11
Duloxetine Hcl	Duloxetine Hcl	67	15
Baclofen	Baclofen	64	suppressed
Bupropion Xl	Bupropion Hcl	61	12
Alendronate Sodium	Alendronate Sodium	60	12
Escitalopram Oxalate	Escitalopram Oxalate	59	14
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	58	13
Potassium Chloride	Potassium Chloride	58	15
Topiramate	Topiramate	58	suppressed
Fluticasone Propionate	Fluticasone Propionate	54	11
Allopurinol	Allopurinol	53	13
Lorazepam	Lorazepam	53	suppressed
Montelukast Sodium	Montelukast Sodium	53	11
Eliquis	Apixaban	51	14
Pregabalin	Pregabalin	51	suppressed
Atenolol	Atenolol	50	11
Tizanidine Hcl	Tizanidine Hcl	50	13
Donepezil Hcl	Donepezil Hcl	49	suppressed
Propranolol Hcl	Propranolol Hcl	49	12
Carvedilol	Carvedilol	48	15
Famotidine	Famotidine	47	13
Furosemide	Furosemide	44	13
Aripiprazole	Aripiprazole	41	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	40	suppressed
Cephalexin	Cephalexin	40	25
Warfarin Sodium	Warfarin Sodium	40	12
Paroxetine Hcl	Paroxetine Hcl	37	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	36	suppressed
Celecoxib	Celecoxib	35	11
Ibuprofen	Ibuprofen	35	16
Clopidogrel	Clopidogrel Bisulfate	34	suppressed
Spironolactone	Spironolactone	34	suppressed
Trulicity	Dulaglutide	34	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	34	suppressed
Pravastatin Sodium	Pravastatin Sodium	33	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	33	suppressed
Mirtazapine	Mirtazapine	32	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	31	suppressed
Primidone	Primidone	31	suppressed
Prednisone	Prednisone	30	16
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	29	11
Triamcinolone Acetonide	Triamcinolone Acetonide	29	19
Benazepril Hcl	Benazepril Hcl	28	suppressed
Levetiracetam	Levetiracetam	28	suppressed
Olanzapine	Olanzapine	28	suppressed
Clonazepam	Clonazepam	27	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	27	suppressed
Ketoconazole	Ketoconazole	27	suppressed
Risperidone	Risperidone	27	suppressed
Ozempic	Semaglutide	26	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	26	suppressed
Bupropion Hcl Sr	Bupropion Hcl	24	suppressed
Nystatin	Nystatin	24	suppressed
Chlorhexidine Gluconate	Chlorhexidine Gluconate	23	suppressed
Tramadol Hcl	Tramadol Hcl	23	14
Glimepiride	Glimepiride	22	suppressed
Methocarbamol	Methocarbamol	22	suppressed
Dicyclomine Hcl	Dicyclomine Hcl	21	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	20	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	20	suppressed
Xarelto	Rivaroxaban	20	suppressed
Citalopram Hbr	Citalopram Hydrobromide	19	suppressed
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	19	suppressed
Jardiance	Empagliflozin	19	suppressed
Propranolol Hcl Er	Propranolol Hcl	19	suppressed
Clonidine Hcl	Clonidine Hcl	18	suppressed
Haloperidol	Haloperidol	18	suppressed
Diclofenac Sodium	Diclofenac Sodium	17	suppressed
Glipizide	Glipizide	17	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	17	suppressed
Labetalol Hcl	Labetalol Hcl	17	suppressed
Latanoprost	Latanoprost	17	suppressed
Meclizine Hcl	Meclizine Hcl	17	suppressed
Breo Ellipta	Fluticasone/Vilanterol	16	suppressed
Promethazine Hcl	Promethazine Hcl	16	suppressed
Buspirone Hcl	Buspirone Hcl	15	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	15	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	15	suppressed
Sucralfate	Sucralfate	15	suppressed
Ventolin Hfa	Albuterol Sulfate	15	suppressed
Diazepam	Diazepam	14	suppressed
Finasteride	Finasteride	14	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	14	suppressed
Liothyronine Sodium	Liothyronine Sodium	14	suppressed
Ondansetron Odt	Ondansetron	14	suppressed
Blisovi Fe	Norethindrone-E.Estradiol-Iron	13	suppressed
Brimonidine Tartrate	Brimonidine Tartrate	13	suppressed
Bumetanide	Bumetanide	13	suppressed
Digoxin	Digoxin	13	suppressed
Prazosin Hcl	Prazosin Hcl	13	suppressed
Divalproex Sodium	Divalproex Sodium	12	suppressed
Doxepin Hcl	Doxepin Hcl	12	suppressed
Errin	Norethindrone	12	suppressed
Ibu	Ibuprofen	12	suppressed
Lovastatin	Lovastatin	12	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	12	suppressed
Ondansetron Hcl	Ondansetron Hcl	12	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	12	suppressed
Ursodiol	Ursodiol	12	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	11	suppressed
Semglee (Yfgn) Pen	Insulin Glargine-Yfgn	11	suppressed
Sure Comfort Pen Needle	Pen Needle, Diabetic	11	suppressed
Symbicort	Budesonide/Formoterol Fumarate	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