Healthcare provider profile · identity verified

James William Gast, MD

Allopathic & Osteopathic Physicians|Family Medicine · GREEN BAY, WI · NPI 1710961529

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 James William Gast, MD received $19.43 in general payments during 2025 across 1 reported records.

PFIZER INC. accounted for 100.0% of that reported general-payment amount.

PFIZER 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 ELIQUIS as an associated drug or biological on 87112 records involving 36032 distinct recipient NPIs. Public Medicare Part D data also shows 92 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

$19.43

1 reported records · 1 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 company	Canonical company	Amount	Share	Records	Year
PFIZER INC.	Unresolved — no canonical attribution shown	$19.43	100.0%	1	2025

What were the payments for?

Payment categories

Category	Amount	Records
Food and Beverage	$19.43	1

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

Payment records were found, but the reported records did not identify a specific associated product for this analysis.

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.

Paying company	Payment year	Drug reported by same entity	Open Payments evidence	Part D	Claims	Beneficiaries
PFIZER INC. Exact reporting entity; no affiliate inference	2025	ELIQUIS open payments reported associated product	CMS Open Payments — General Payments 87112 supporting records · 36032 recipient NPIs · example record 1228794063	Eliquis · 2024 Exact normalized brand match · 1 Part D row	92	24

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	629	170
Lisinopril	Lisinopril	624	165
Amlodipine Besylate	Amlodipine Besylate	524	134
Simvastatin	Simvastatin	441	114
Levothyroxine Sodium	Levothyroxine Sodium	344	85
Losartan Potassium	Losartan Potassium	340	87
Hydrochlorothiazide	Hydrochlorothiazide	320	89
Omeprazole	Omeprazole	308	91
Metoprolol Succinate	Metoprolol Succinate	248	67
Rosuvastatin Calcium	Rosuvastatin Calcium	238	66
Metformin Hcl	Metformin Hcl	229	64
Pantoprazole Sodium	Pantoprazole Sodium	182	47
Gabapentin	Gabapentin	176	54
Sertraline Hcl	Sertraline Hcl	169	42
Albuterol Sulfate Hfa	Albuterol Sulfate	161	64
Allopurinol	Allopurinol	156	39
Metoprolol Tartrate	Metoprolol Tartrate	149	44
Trazodone Hcl	Trazodone Hcl	142	38
Tamsulosin Hcl	Tamsulosin Hcl	130	33
Meloxicam	Meloxicam	122	41
Finasteride	Finasteride	117	31
Warfarin Sodium	Warfarin Sodium	105	17
Alprazolam	Alprazolam	102	26
Carvedilol	Carvedilol	98	22
Furosemide	Furosemide	98	29
Jardiance	Empagliflozin	95	21
Tramadol Hcl	Tramadol Hcl	94	23
Pravastatin Sodium	Pravastatin Sodium	93	24
Eliquis	Apixaban	92	24
Escitalopram Oxalate	Escitalopram Oxalate	92	23
Fluticasone Propionate	Fluticasone Propionate	87	35
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	86	21
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	72	22
Fluoxetine Hcl	Fluoxetine Hcl	71	19
Atenolol	Atenolol	67	17
Potassium Chloride	Potassium Chloride	66	17
Metformin Hcl Er	Metformin Hcl	65	16
Buspirone Hcl	Buspirone Hcl	61	13
Clonazepam	Clonazepam	60	14
Montelukast Sodium	Montelukast Sodium	60	16
Glimepiride	Glimepiride	59	16
Lovastatin	Lovastatin	59	18
Clopidogrel	Clopidogrel Bisulfate	57	15
Irbesartan	Irbesartan	57	13
Prednisone	Prednisone	57	34
Enalapril Maleate	Enalapril Maleate	54	13
Alendronate Sodium	Alendronate Sodium	53	18
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	53	15
Paroxetine Hcl	Paroxetine Hcl	50	suppressed
Donepezil Hcl	Donepezil Hcl	48	suppressed
Bupropion Xl	Bupropion Hcl	46	15
Ezetimibe	Ezetimibe	46	15
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	44	suppressed
Celecoxib	Celecoxib	41	12
Ropinirole Hcl	Ropinirole Hcl	41	suppressed
Ciclopirox	Ciclopirox	40	15
Glipizide Er	Glipizide	39	suppressed
Diclofenac Sodium	Diclofenac Sodium	37	14
Naproxen	Naproxen	37	suppressed
Benazepril Hcl	Benazepril Hcl	36	suppressed
Fenofibrate	Fenofibrate	34	suppressed
Synthroid	Levothyroxine Sodium	33	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	32	12
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	32	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	32	suppressed
Propranolol Hcl	Propranolol Hcl	32	suppressed
Zolpidem Tartrate	Zolpidem Tartrate	32	suppressed
Famotidine	Famotidine	31	12
Sucralfate	Sucralfate	31	suppressed
Terazosin Hcl	Terazosin Hcl	31	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	31	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	31	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	30	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	30	14
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	29	suppressed
Pregabalin	Pregabalin	29	suppressed
Solifenacin Succinate	Solifenacin Succinate	29	suppressed
Bisoprolol Fumarate	Bisoprolol Fumarate	28	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	28	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	27	suppressed
Mirtazapine	Mirtazapine	27	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	27	suppressed
Humalog Kwikpen U-100	Insulin Lispro	26	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	25	suppressed
Verapamil Er	Verapamil Hcl	25	suppressed
Aripiprazole	Aripiprazole	24	suppressed
Citalopram Hbr	Citalopram Hydrobromide	24	suppressed
Clonidine Hcl	Clonidine Hcl	24	suppressed
Tizanidine Hcl	Tizanidine Hcl	24	suppressed
Januvia	Sitagliptin Phosphate	23	suppressed
Ozempic	Semaglutide	23	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	23	suppressed
Farxiga	Dapagliflozin Propanediol	22	suppressed
Lorazepam	Lorazepam	22	suppressed
Novolog Flexpen	Insulin Aspart	22	suppressed
Ondansetron Odt	Ondansetron	22	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	21	suppressed
Breo Ellipta	Fluticasone/Vilanterol	21	suppressed
Duloxetine Hcl	Duloxetine Hcl	21	suppressed
Ventolin Hfa	Albuterol Sulfate	21	suppressed
Constulose	Lactulose	20	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	19	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	18	suppressed
Fenofibrate	Fenofibrate,micronized	18	suppressed
Memantine Hcl	Memantine Hcl	18	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	18	18
Nystatin	Nystatin	18	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	17	suppressed
Bydureon Bcise	Exenatide Microspheres	17	suppressed
Chlorthalidone	Chlorthalidone	17	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	17	16
Fosinopril Sodium	Fosinopril Sodium	17	suppressed
Glipizide	Glipizide	17	suppressed
Loperamide	Loperamide Hcl	17	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	16	11
Diazepam	Diazepam	16	suppressed
Irbesartan-Hydrochlorothiazide	Irbesartan/Hydrochlorothiazide	16	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	16	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	16	suppressed
Ursodiol	Ursodiol	16	suppressed
Cephalexin	Cephalexin	15	15
Nabumetone	Nabumetone	15	suppressed
Propranolol Hcl Er	Propranolol Hcl	15	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	14
Bupropion Hcl Sr	Bupropion Hcl	14	suppressed
Morphine Sulfate Er	Morphine Sulfate	14	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	14	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	14	suppressed
Primidone	Primidone	14	suppressed
Alfuzosin Hcl Er	Alfuzosin Hcl	13	suppressed
Bisoprolol-Hydrochlorothiazide	Bisoprolol/Hydrochlorothiazide	13	suppressed
Fenofibric Acid	Fenofibric Acid (Choline)	13	suppressed
Nicotrol Ns	Nicotine	13	suppressed
Valsartan	Valsartan	13	suppressed
Acyclovir	Acyclovir	12	suppressed
Doxepin Hcl	Doxepin Hcl	12	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	12	suppressed
Niacin Er	Niacin	12	suppressed
Phenytoin	Phenytoin	12	suppressed
Spironolactone-Hctz	Spironolact/Hydrochlorothiazid	12	suppressed
Tamoxifen Citrate	Tamoxifen Citrate	12	suppressed
Trulicity	Dulaglutide	12	suppressed
Xarelto	Rivaroxaban	12	suppressed
Amoxicillin	Amoxicillin	11	suppressed
Divalproex Sodium Er	Divalproex Sodium	11	suppressed
Galantamine Hbr	Galantamine Hbr	11	suppressed
Ipratropium Bromide	Ipratropium Bromide	11	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Nifedipine Er	Nifedipine	11	suppressed
Nitroglycerin	Nitroglycerin	11	suppressed
Oxycontin	Oxycodone Hcl	11	suppressed
Qvar Redihaler	Beclomethasone Dipropionate	11	suppressed
Spiriva Handihaler	Tiotropium Bromide	11	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	11	suppressed
Valacyclovir	Valacyclovir Hcl	11	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	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	$19.43 · 1 records	PFIZER INC.	—	1	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

How do you evaluate evidence when you have a financial relationship with PFIZER INC.?
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