Healthcare provider profile · identity verified

Nathan Gallagher

Family Practice · ALPENA, MI · NPI 1497138226

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	580	157
Levothyroxine Sodium	Levothyroxine Sodium	422	112
Lisinopril	Lisinopril	391	108
Omeprazole	Omeprazole	373	110
Losartan Potassium	Losartan Potassium	332	91
Pravastatin Sodium	Pravastatin Sodium	312	90
Tamsulosin Hcl	Tamsulosin Hcl	276	77
Amlodipine Besylate	Amlodipine Besylate	275	79
Metoprolol Succinate	Metoprolol Succinate	259	80
Simvastatin	Simvastatin	259	68
Gabapentin	Gabapentin	231	50
Duloxetine Hcl	Duloxetine Hcl	230	61
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	205	36
Metformin Hcl Er	Metformin Hcl	200	54
Hydrochlorothiazide	Hydrochlorothiazide	198	56
Metformin Hcl	Metformin Hcl	195	54
Allopurinol	Allopurinol	183	48
Rosuvastatin Calcium	Rosuvastatin Calcium	176	56
Nortriptyline Hcl	Nortriptyline Hcl	172	61
Metoprolol Tartrate	Metoprolol Tartrate	139	41
Tizanidine Hcl	Tizanidine Hcl	134	50
Famotidine	Famotidine	130	51
Jardiance	Empagliflozin	128	36
Pregabalin	Pregabalin	125	20
Eliquis	Apixaban	123	26
Meloxicam	Meloxicam	121	43
Albuterol Sulfate Hfa	Albuterol Sulfate	115	39
Pantoprazole Sodium	Pantoprazole Sodium	114	32
Sertraline Hcl	Sertraline Hcl	111	28
Citalopram Hbr	Citalopram Hydrobromide	109	26
Prednisone	Prednisone	101	78
Montelukast Sodium	Montelukast Sodium	97	24
Fluticasone Propionate	Fluticasone Propionate	93	33
Ozempic	Semaglutide	89	25
Furosemide	Furosemide	87	26
Naproxen	Naproxen	83	35
Potassium Chloride	Potassium Chloride	82	27
Clopidogrel	Clopidogrel Bisulfate	78	26
Ropinirole Hcl	Ropinirole Hcl	77	18
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	76	20
Trazodone Hcl	Trazodone Hcl	76	25
Buspirone Hcl	Buspirone Hcl	75	22
Spironolactone	Spironolactone	74	19
Celecoxib	Celecoxib	70	22
Methylprednisolone	Methylprednisolone	70	57
Mounjaro	Tirzepatide	68	17
Alendronate Sodium	Alendronate Sodium	66	19
Atenolol	Atenolol	65	20
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	65	18
Lovastatin	Lovastatin	65	21
Pioglitazone Hcl	Pioglitazone Hcl	63	14
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	62	57
Carvedilol	Carvedilol	58	15
Bupropion Xl	Bupropion Hcl	57	16
Warfarin Sodium	Warfarin Sodium	56	13
Doxycycline Hyclate	Doxycycline Hyclate	52	40
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	51	20
Finasteride	Finasteride	49	19
Glimepiride	Glimepiride	47	15
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	47	15
Mirtazapine	Mirtazapine	47	21
Tramadol Hcl	Tramadol Hcl	47	11
Azithromycin	Azithromycin	46	39
Cephalexin	Cephalexin	46	40
Enalapril Maleate	Enalapril Maleate	46	13
Ibuprofen	Ibuprofen	46	14
Venlafaxine Hcl Er	Venlafaxine Hcl	46	13
Oxybutynin Chloride Er	Oxybutynin Chloride	44	11
Hydroxyzine Hcl	Hydroxyzine Hcl	43	19
Ondansetron Odt	Ondansetron	43	15
Farxiga	Dapagliflozin Propanediol	42	suppressed
Ezetimibe	Ezetimibe	41	12
Paroxetine Hcl	Paroxetine Hcl	41	11
Bydureon Bcise	Exenatide Microspheres	39	suppressed
Diclofenac Sodium	Diclofenac Sodium	39	19
Donepezil Hcl	Donepezil Hcl	39	16
Esomeprazole Magnesium	Esomeprazole Magnesium	37	suppressed
Isosorbide Mononitrate Er	Isosorbide Mononitrate	35	suppressed
Ondansetron Hcl	Ondansetron Hcl	35	12
Sucralfate	Sucralfate	35	18
Amitriptyline Hcl	Amitriptyline Hcl	34	13
Fluoxetine Hcl	Fluoxetine Hcl	34	12
Trulicity	Dulaglutide	34	11
Benazepril Hcl	Benazepril Hcl	33	suppressed
Alprazolam	Alprazolam	32	12
Fenofibrate	Fenofibrate Nanocrystallized	32	suppressed
Clonidine Hcl	Clonidine Hcl	31	17
Glipizide	Glipizide	31	suppressed
Baclofen	Baclofen	30	12
Ventolin Hfa	Albuterol Sulfate	30	14
Acarbose	Acarbose	29	suppressed
Meclizine Hcl	Meclizine Hcl	28	17
Estradiol	Estradiol	27	suppressed
Memantine Hcl	Memantine Hcl	27	suppressed
Quetiapine Fumarate	Quetiapine Fumarate	27	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	27	19
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	26	suppressed
Bumetanide	Bumetanide	26	suppressed
Escitalopram Oxalate	Escitalopram Oxalate	26	suppressed
Methocarbamol	Methocarbamol	25	11
Phenytoin Sodium Extended	Phenytoin Sodium Extended	24	suppressed
Terbinafine Hcl	Terbinafine Hcl	24	17
Dicyclomine Hcl	Dicyclomine Hcl	23	suppressed
Nystatin	Nystatin	23	14
Rybelsus	Semaglutide	23	suppressed
Synthroid	Levothyroxine Sodium	22	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	22	suppressed
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	21	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	21	suppressed
Doxepin Hcl	Doxepin Hcl	21	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	21	suppressed
Topiramate	Topiramate	21	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	20	19
Fluconazole	Fluconazole	20	11
Ultra-Fine Short Pen Needle	Pen Needle, Diabetic	20	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	19	17
Combivent Respimat	Ipratropium/Albuterol Sulfate	19	suppressed
Gemfibrozil	Gemfibrozil	19	suppressed
Glipizide Er	Glipizide	19	suppressed
Chlorthalidone	Chlorthalidone	18	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	18	suppressed
Levofloxacin	Levofloxacin	18	15
Sumatriptan Succinate	Sumatriptan Succinate	18	suppressed
Valacyclovir	Valacyclovir Hcl	18	suppressed
Januvia	Sitagliptin Phosphate	17	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	17	15
Zolpidem Tartrate	Zolpidem Tartrate	17	suppressed
Humalog Kwikpen U-100	Insulin Lispro	16	suppressed
Lorazepam	Lorazepam	16	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	16	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	16	suppressed
Acyclovir	Acyclovir	15	suppressed
Cilostazol	Cilostazol	15	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	15	suppressed
Irbesartan	Irbesartan	15	suppressed
Ketorolac Tromethamine	Ketorolac Tromethamine	15	suppressed
Lansoprazole	Lansoprazole	15	suppressed
Nifedipine Er	Nifedipine	15	suppressed
Propranolol Hcl	Propranolol Hcl	15	suppressed
Breo Ellipta	Fluticasone/Vilanterol	14	suppressed
Fenofibrate	Fenofibrate	14	suppressed
Hydrocortisone	Hydrocortisone	14	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	14	suppressed
Bupropion Hcl Sr	Bupropion Hcl	13	suppressed
Methotrexate	Methotrexate Sodium	13	suppressed
Mupirocin	Mupirocin	13	suppressed
Novolog Flexpen	Insulin Aspart	13	suppressed
Valsartan	Valsartan	13	suppressed
Xarelto	Rivaroxaban	13	suppressed
Amoxicillin	Amoxicillin	12	12
Breyna	Budesonide/Formoterol Fumarate	12	suppressed
Clobetasol Propionate	Clobetasol Propionate	12	suppressed
Colchicine	Colchicine	12	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	11	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	11	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	11	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	11	suppressed
Humalog	Insulin Lispro	11	suppressed
Nitroglycerin	Nitroglycerin	11	suppressed
Propranolol Hcl Er	Propranolol Hcl	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