Healthcare provider profile · identity verified

Robert Quirbach, M.D.

Family Practice · MILFORD, NH · NPI 1851376693

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	607	194
Lisinopril	Lisinopril	591	172
Omeprazole	Omeprazole	384	101
Amlodipine Besylate	Amlodipine Besylate	382	115
Gabapentin	Gabapentin	308	71
Metoprolol Succinate	Metoprolol Succinate	308	83
Levothyroxine Sodium	Levothyroxine Sodium	299	90
Lorazepam	Lorazepam	296	58
Tamsulosin Hcl	Tamsulosin Hcl	253	76
Hydrochlorothiazide	Hydrochlorothiazide	246	84
Metformin Hcl	Metformin Hcl	231	71
Pantoprazole Sodium	Pantoprazole Sodium	228	68
Furosemide	Furosemide	227	68
Metoprolol Tartrate	Metoprolol Tartrate	220	58
Rosuvastatin Calcium	Rosuvastatin Calcium	215	65
Meloxicam	Meloxicam	207	53
Tramadol Hcl	Tramadol Hcl	207	47
Albuterol Sulfate Hfa	Albuterol Sulfate	200	65
Eliquis	Apixaban	199	40
Simvastatin	Simvastatin	184	52
Losartan Potassium	Losartan Potassium	170	49
Zolpidem Tartrate	Zolpidem Tartrate	166	33
Cephalexin	Cephalexin	145	81
Trazodone Hcl	Trazodone Hcl	136	38
Glimepiride	Glimepiride	110	30
Clopidogrel	Clopidogrel Bisulfate	106	30
Sertraline Hcl	Sertraline Hcl	102	32
Oxycodone Hcl	Oxycodone Hcl	101	14
Montelukast Sodium	Montelukast Sodium	100	30
Finasteride	Finasteride	98	29
Methylprednisolone	Methylprednisolone	98	60
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	96	30
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	95	20
Ozempic	Semaglutide	95	18
Duloxetine Hcl	Duloxetine Hcl	94	24
Naproxen	Naproxen	90	25
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	88	14
Dicyclomine Hcl	Dicyclomine Hcl	85	25
Paroxetine Hcl	Paroxetine Hcl	82	22
Allopurinol	Allopurinol	81	27
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	79	31
Fluoxetine Hcl	Fluoxetine Hcl	73	22
Warfarin Sodium	Warfarin Sodium	73	22
Diazepam	Diazepam	72	15
Atenolol	Atenolol	71	21
Citalopram Hbr	Citalopram Hydrobromide	70	17
Potassium Chloride	Potassium Chloride	70	24
Sildenafil Citrate	Sildenafil Citrate	70	11
Temazepam	Temazepam	70	15
Pravastatin Sodium	Pravastatin Sodium	67	23
Amitriptyline Hcl	Amitriptyline Hcl	65	18
Clonazepam	Clonazepam	65	15
Alprazolam	Alprazolam	60	12
Synthroid	Levothyroxine Sodium	60	13
Venlafaxine Hcl Er	Venlafaxine Hcl	59	17
Prednisone	Prednisone	58	22
Topiramate	Topiramate	58	12
Carvedilol	Carvedilol	56	16
Donepezil Hcl	Donepezil Hcl	56	22
Doxycycline Hyclate	Doxycycline Hyclate	56	40
Ibuprofen	Ibuprofen	54	13
Alendronate Sodium	Alendronate Sodium	48	11
Fluticasone Propionate	Fluticasone Propionate	48	17
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	48	16
Escitalopram Oxalate	Escitalopram Oxalate	47	14
Testosterone Cypionate	Testosterone Cypionate	47	suppressed
Clotrimazole-Betamethasone	Clotrimazole/Betamethasone Dip	45	32
Esomeprazole Magnesium	Esomeprazole Magnesium	45	14
Irbesartan	Irbesartan	45	16
Famotidine	Famotidine	44	18
Ropinirole Hcl	Ropinirole Hcl	44	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	43	14
Spironolactone	Spironolactone	41	14
Metformin Hcl Er	Metformin Hcl	40	14
Isosorbide Mononitrate Er	Isosorbide Mononitrate	39	11
Celecoxib	Celecoxib	37	12
Dextroamphetamine-Amphet Er	Dextroamphetamine/Amphetamine	37	suppressed
Acetaminophen-Codeine	Acetaminophen With Codeine	36	suppressed
Azithromycin	Azithromycin	35	26
Bupropion Hcl Sr	Bupropion Hcl	35	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	34	24
Ezetimibe	Ezetimibe	34	suppressed
Baclofen	Baclofen	32	suppressed
Buspirone Hcl	Buspirone Hcl	32	suppressed
Jardiance	Empagliflozin	32	suppressed
Fluconazole	Fluconazole	30	15
Bupropion Xl	Bupropion Hcl	29	12
Clonidine Hcl	Clonidine Hcl	29	suppressed
Eszopiclone	Eszopiclone	29	suppressed
Nystatin	Nystatin	29	suppressed
Glipizide Er	Glipizide	28	suppressed
Lovastatin	Lovastatin	27	suppressed
Meclizine Hcl	Meclizine Hcl	27	11
Propranolol Hcl	Propranolol Hcl	26	suppressed
Enoxaparin Sodium	Enoxaparin Sodium	25	suppressed
Ipratropium Bromide	Ipratropium Bromide	25	suppressed
Januvia	Sitagliptin Phosphate	25	suppressed
Aimovig Autoinjector	Erenumab-Aooe	23	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	23	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	23	suppressed
Amoxicillin	Amoxicillin	22	13
Bisoprolol Fumarate	Bisoprolol Fumarate	22	suppressed
Levetiracetam	Levetiracetam	22	suppressed
Promethazine Hcl	Promethazine Hcl	22	suppressed
Trulicity	Dulaglutide	22	suppressed
Valsartan	Valsartan	22	suppressed
Cyanocobalamin Injection	Cyanocobalamin (Vitamin B-12)	21	suppressed
Lidocaine	Lidocaine	21	suppressed
Pioglitazone Hcl	Pioglitazone Hcl	21	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	21	suppressed
Hydrocortisone	Hydrocortisone	20	suppressed
Memantine Hcl	Memantine Hcl	20	suppressed
Nitroglycerin	Nitroglycerin	20	15
Ondansetron Odt	Ondansetron	20	11
Terazosin Hcl	Terazosin Hcl	20	suppressed
Torsemide	Torsemide	20	suppressed
Diltiazem 24hr Er	Diltiazem Hcl	19	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	19	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	19	suppressed
Glipizide	Glipizide	18	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	18	suppressed
Ondansetron Hcl	Ondansetron Hcl	18	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	17	suppressed
Metronidazole	Metronidazole	17	15
Spiriva Handihaler	Tiotropium Bromide	17	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	17	suppressed
Symbicort	Budesonide/Formoterol Fumarate	16	suppressed
Aripiprazole	Aripiprazole	15	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	15	suppressed
Methocarbamol	Methocarbamol	15	suppressed
Mirtazapine	Mirtazapine	15	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	15	suppressed
Pregabalin	Pregabalin	15	suppressed
Repatha Sureclick	Evolocumab	15	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	15	12
Tizanidine Hcl	Tizanidine Hcl	15	suppressed
Ventolin Hfa	Albuterol Sulfate	15	suppressed
Acyclovir	Acyclovir	14	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	13
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	14	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	14	suppressed
Liothyronine Sodium	Liothyronine Sodium	14	suppressed
Naratriptan Hcl	Naratriptan Hcl	14	suppressed
Propranolol Hcl Er	Propranolol Hcl	14	suppressed
Tegretol Xr	Carbamazepine	14	suppressed
Tiadylt Er	Diltiazem Hcl	14	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	14	suppressed
Xarelto	Rivaroxaban	14	suppressed
Amantadine	Amantadine Hcl	13	suppressed
Amiodarone Hcl	Amiodarone Hcl	13	suppressed
Breo Ellipta	Fluticasone/Vilanterol	13	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Ketoconazole	Ketoconazole	13	suppressed
Klor-Con M20	Potassium Chloride	13	suppressed
Lacosamide	Lacosamide	13	suppressed
Linzess	Linaclotide	13	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	13	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	13	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	12	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	12	suppressed
Nifedipine Er	Nifedipine	12	suppressed
Novolog Flexpen	Insulin Aspart	12	suppressed
Venlafaxine Hcl	Venlafaxine Hcl	12	suppressed
Benazepril Hcl	Benazepril Hcl	11	suppressed
Erythromycin	Erythromycin Base	11	suppressed
Fentanyl	Fentanyl	11	suppressed
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	11	suppressed
Lithium Carbonate	Lithium Carbonate	11	suppressed
Mupirocin	Mupirocin	11	suppressed
Pulmicort Flexhaler	Budesonide	11	suppressed
Risperidone	Risperidone	11	suppressed
Toujeo Solostar	Insulin Glargine,hum.Rec.Anlog	11	suppressed
Veo Insulin Syringe	Syrge-Ndl,ins 0.3 Ml Half Mark	11	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	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