Healthcare provider profile · identity verified

Jonathan L Gasper, MD

Family Practice · WINTHROP, ME · NPI 1932133592

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	370	117
Oxycodone Hcl	Oxycodone Hcl	343	54
Levothyroxine Sodium	Levothyroxine Sodium	299	76
Lisinopril	Lisinopril	254	73
Losartan Potassium	Losartan Potassium	244	69
Pantoprazole Sodium	Pantoprazole Sodium	208	68
Amlodipine Besylate	Amlodipine Besylate	207	65
Omeprazole	Omeprazole	203	55
Metoprolol Succinate	Metoprolol Succinate	200	57
Gabapentin	Gabapentin	170	46
Prednisone	Prednisone	170	92
Albuterol Sulfate Hfa	Albuterol Sulfate	169	63
Rosuvastatin Calcium	Rosuvastatin Calcium	162	51
Furosemide	Furosemide	139	44
Metoprolol Tartrate	Metoprolol Tartrate	125	35
Tramadol Hcl	Tramadol Hcl	125	22
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	116	30
Ozempic	Semaglutide	101	21
Tamsulosin Hcl	Tamsulosin Hcl	100	35
Trazodone Hcl	Trazodone Hcl	97	27
Eliquis	Apixaban	95	25
Ezetimibe	Ezetimibe	91	28
Metformin Hcl	Metformin Hcl	88	29
Jardiance	Empagliflozin	86	14
Doxycycline Hyclate	Doxycycline Hyclate	83	59
Simvastatin	Simvastatin	80	25
Sertraline Hcl	Sertraline Hcl	74	28
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	68	13
Metformin Hcl Er	Metformin Hcl	67	20
Diazepam	Diazepam	63	12
Alprazolam	Alprazolam	61	16
Januvia	Sitagliptin Phosphate	60	13
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	59	22
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	59	15
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	58	suppressed
Potassium Chloride	Potassium Chloride	58	18
Trulicity	Dulaglutide	56	12
Venlafaxine Hcl Er	Venlafaxine Hcl	56	13
Famotidine	Famotidine	55	16
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	55	17
Clonazepam	Clonazepam	53	suppressed
Spironolactone	Spironolactone	52	16
Pregabalin	Pregabalin	51	suppressed
Duloxetine Hcl	Duloxetine Hcl	48	14
Escitalopram Oxalate	Escitalopram Oxalate	48	13
Fluticasone Propionate	Fluticasone Propionate	46	15
Isosorbide Mononitrate Er	Isosorbide Mononitrate	46	11
Methylphenidate Hcl	Methylphenidate Hcl	45	suppressed
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	45	15
Zolpidem Tartrate	Zolpidem Tartrate	43	suppressed
Allopurinol	Allopurinol	42	15
Atenolol	Atenolol	42	13
Clopidogrel	Clopidogrel Bisulfate	41	14
Montelukast Sodium	Montelukast Sodium	41	12
Baclofen	Baclofen	38	suppressed
Paroxetine Hcl	Paroxetine Hcl	38	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	38	27
Carvedilol	Carvedilol	37	14
Nitroglycerin	Nitroglycerin	37	22
Mirtazapine	Mirtazapine	36	12
Pravastatin Sodium	Pravastatin Sodium	36	11
Fluoxetine Hcl	Fluoxetine Hcl	35	15
Warfarin Sodium	Warfarin Sodium	33	suppressed
Alendronate Sodium	Alendronate Sodium	31	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	31	suppressed
Celecoxib	Celecoxib	31	suppressed
Glipizide Er	Glipizide	30	suppressed
Hydrochlorothiazide	Hydrochlorothiazide	29	12
Azithromycin	Azithromycin	28	21
Finasteride	Finasteride	28	suppressed
Carisoprodol	Carisoprodol	27	suppressed
Linzess	Linaclotide	27	suppressed
Breo Ellipta	Fluticasone/Vilanterol	26	suppressed
Glipizide	Glipizide	26	11
Hydroxyzine Hcl	Hydroxyzine Hcl	26	14
Buprenorphine Hcl	Buprenorphine Hcl	25	suppressed
Clonidine Hcl	Clonidine Hcl	25	suppressed
Diclofenac Sodium	Diclofenac Sodium	25	suppressed
Donepezil Hcl	Donepezil Hcl	25	suppressed
Hydralazine Hcl	Hydralazine Hcl	25	suppressed
Testosterone	Testosterone	25	suppressed
Tizanidine Hcl	Tizanidine Hcl	25	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	24	suppressed
Primidone	Primidone	24	suppressed
Comfort Ez Pen Needle	Pen Needle, Diabetic	23	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	23	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	23	16
Lovastatin	Lovastatin	22	suppressed
Rexulti	Brexpiprazole	22	suppressed
Synthroid	Levothyroxine Sodium	22	suppressed
Valacyclovir	Valacyclovir Hcl	22	suppressed
Bumetanide	Bumetanide	21	suppressed
Bupropion Xl	Bupropion Hcl	21	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	21	19
Insulin Lispro Kwikpen U-100	Insulin Lispro	21	suppressed
Testosterone Cypionate	Testosterone Cypionate	21	suppressed
Citalopram Hbr	Citalopram Hydrobromide	20	suppressed
Fluconazole	Fluconazole	20	14
Ibuprofen	Ibuprofen	20	suppressed
Ondansetron Odt	Ondansetron	20	suppressed
Propranolol Hcl	Propranolol Hcl	20	suppressed
Buspirone Hcl	Buspirone Hcl	18	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	18	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	18	suppressed
Sucralfate	Sucralfate	18	suppressed
Nateglinide	Nateglinide	17	suppressed
Ondansetron Hcl	Ondansetron Hcl	17	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	16	suppressed
Cefuroxime	Cefuroxime Axetil	16	13
Levetiracetam	Levetiracetam	16	suppressed
Lurasidone Hcl	Lurasidone Hcl	16	suppressed
Naloxone Hcl	Naloxone Hcl	16	16
Chlorthalidone	Chlorthalidone	15	suppressed
Meloxicam	Meloxicam	15	suppressed
Bupropion Hcl Sr	Bupropion Hcl	14	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	14	suppressed
Ropinirole Hcl	Ropinirole Hcl	14	suppressed
Sildenafil Citrate	Sildenafil Citrate	14	suppressed
Aimovig Autoinjector	Erenumab-Aooe	13	suppressed
Estradiol	Estradiol	13	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	13	suppressed
Meclizine Hcl	Meclizine Hcl	13	suppressed
Mounjaro	Tirzepatide	13	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	13	11
Cephalexin	Cephalexin	12	11
Humalog	Insulin Lispro	12	suppressed
Hydrocortisone	Hydrocortisone	12	suppressed
Metronidazole	Metronidazole	12	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	12	suppressed
Topiramate	Topiramate	12	suppressed
Buprenorphine-Naloxone	Buprenorphine Hcl/Naloxone Hcl	11	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	11	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	11	suppressed
Estazolam	Estazolam	11	suppressed
Fiasp Flextouch	Insulin Aspart (Niacinamide)	11	suppressed
Levofloxacin	Levofloxacin	11	suppressed
Lidocaine	Lidocaine	11	suppressed
Nystatin	Nystatin	11	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	11	suppressed
Rizatriptan	Rizatriptan Benzoate	11	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	11	suppressed
Torsemide	Torsemide	11	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	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