Healthcare provider profile · identity verified

Robert N. Merrill, MD

Family Practice · ROCKPORT, ME · NPI 1841320926

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	677	174
Levothyroxine Sodium	Levothyroxine Sodium	391	94
Losartan Potassium	Losartan Potassium	345	95
Lisinopril	Lisinopril	333	102
Amlodipine Besylate	Amlodipine Besylate	310	79
Metoprolol Succinate	Metoprolol Succinate	292	78
Sertraline Hcl	Sertraline Hcl	274	58
Simvastatin	Simvastatin	226	57
Rosuvastatin Calcium	Rosuvastatin Calcium	215	63
Omeprazole	Omeprazole	211	54
Gabapentin	Gabapentin	186	50
Pantoprazole Sodium	Pantoprazole Sodium	183	51
Tamsulosin Hcl	Tamsulosin Hcl	182	58
Furosemide	Furosemide	177	52
Eliquis	Apixaban	149	36
Metformin Hcl Er	Metformin Hcl	144	47
Albuterol Sulfate Hfa	Albuterol Sulfate	131	47
Hydrochlorothiazide	Hydrochlorothiazide	116	31
Trazodone Hcl	Trazodone Hcl	116	33
Atenolol	Atenolol	112	25
Metoprolol Tartrate	Metoprolol Tartrate	110	33
Metformin Hcl	Metformin Hcl	109	32
Prednisone	Prednisone	106	60
Oxycodone Hcl	Oxycodone Hcl	102	23
Duloxetine Hcl	Duloxetine Hcl	100	29
Lorazepam	Lorazepam	97	24
Alprazolam	Alprazolam	96	21
Januvia	Sitagliptin Phosphate	86	21
Famotidine	Famotidine	85	24
Glipizide Er	Glipizide	85	23
Clopidogrel	Clopidogrel Bisulfate	83	22
Escitalopram Oxalate	Escitalopram Oxalate	82	26
Clonazepam	Clonazepam	80	12
Buprenorphine-Naloxone	Buprenorphine Hcl/Naloxone Hcl	78	suppressed
Donepezil Hcl	Donepezil Hcl	75	11
Zolpidem Tartrate	Zolpidem Tartrate	74	15
Pravastatin Sodium	Pravastatin Sodium	73	18
Triamcinolone Acetonide	Triamcinolone Acetonide	73	29
Pregabalin	Pregabalin	71	11
Montelukast Sodium	Montelukast Sodium	67	18
Levetiracetam	Levetiracetam	64	suppressed
Bupropion Xl	Bupropion Hcl	63	18
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	61	19
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	59	suppressed
Citalopram Hbr	Citalopram Hydrobromide	56	13
Finasteride	Finasteride	55	15
Quetiapine Fumarate	Quetiapine Fumarate	52	17
Tramadol Hcl	Tramadol Hcl	51	18
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	50	suppressed
Allopurinol	Allopurinol	49	15
Isosorbide Mononitrate Er	Isosorbide Mononitrate	49	12
Venlafaxine Hcl Er	Venlafaxine Hcl	49	suppressed
Fluticasone Propionate	Fluticasone Propionate	48	15
Latanoprost	Latanoprost	48	12
Doxycycline Hyclate	Doxycycline Hyclate	47	43
Potassium Chloride	Potassium Chloride	47	19
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	45	15
Meloxicam	Meloxicam	44	16
Fluticasone-Salmeterol	Fluticasone Propion/Salmeterol	42	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	40	18
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	40	11
Baclofen	Baclofen	39	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	37	30
Spironolactone	Spironolactone	37	suppressed
Arexvy	Rsvpref3 Antigen/As01e/Pf	36	36
Lactulose	Lactulose	36	suppressed
Synthroid	Levothyroxine Sodium	35	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	33	suppressed
Ondansetron Odt	Ondansetron	33	suppressed
Diazepam	Diazepam	32	suppressed
Warfarin Sodium	Warfarin Sodium	32	suppressed
Digoxin	Digoxin	31	suppressed
Risperidone	Risperidone	31	suppressed
Verapamil Er	Verapamil Hcl	31	suppressed
Ezetimibe	Ezetimibe	30	suppressed
Buspirone Hcl	Buspirone Hcl	28	suppressed
Mirtazapine	Mirtazapine	28	11
Xarelto	Rivaroxaban	28	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	27	suppressed
Rivastigmine	Rivastigmine	27	suppressed
Diclofenac Sodium	Diclofenac Sodium	26	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	26	suppressed
Carbidopa-Levodopa	Carbidopa/Levodopa	25	suppressed
Carisoprodol	Carisoprodol	25	suppressed
Memantine Hcl Er	Memantine Hcl	25	suppressed
Chlorthalidone	Chlorthalidone	24	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	24	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	24	suppressed
Paroxetine Hcl	Paroxetine Hcl	24	suppressed
Ropinirole Hcl	Ropinirole Hcl	24	suppressed
Aripiprazole	Aripiprazole	23	suppressed
Fluoxetine Hcl	Fluoxetine Hcl	23	suppressed
Irbesartan	Irbesartan	23	suppressed
Lamotrigine	Lamotrigine	23	suppressed
Propranolol Hcl Er	Propranolol Hcl	23	suppressed
Shingrix	Varicella-Zoster Ge/As01b/Pf	23	15
Bupropion Hcl Sr	Bupropion Hcl	22	suppressed
Lansoprazole	Lansoprazole	22	suppressed
Lantus Solostar	Insulin Glargine,hum.Rec.Anlog	22	suppressed
Memantine Hcl	Memantine Hcl	22	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	21	suppressed
Valsartan	Valsartan	21	suppressed
Glimepiride	Glimepiride	20	suppressed
Torsemide	Torsemide	20	suppressed
Breo Ellipta	Fluticasone/Vilanterol	19	suppressed
Symbicort	Budesonide/Formoterol Fumarate	19	suppressed
Anoro Ellipta	Umeclidinium Brm/Vilanterol Tr	18	suppressed
Cephalexin	Cephalexin	18	15
Glipizide	Glipizide	17	suppressed
Trulicity	Dulaglutide	17	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	17	suppressed
Estradiol (Once Weekly)	Estradiol	16	suppressed
Nitroglycerin	Nitroglycerin	16	12
Novolog Flexpen	Insulin Aspart	16	suppressed
Rexulti	Brexpiprazole	16	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	16	12
Amoxicillin	Amoxicillin	15	13
Carvedilol	Carvedilol	15	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	15	suppressed
Dilt-Xr	Diltiazem Hcl	15	suppressed
Jardiance	Empagliflozin	15	suppressed
Metoclopramide Hcl	Metoclopramide Hcl	15	suppressed
Topiramate	Topiramate	15	suppressed
Valacyclovir	Valacyclovir Hcl	15	suppressed
Ventolin Hfa	Albuterol Sulfate	15	suppressed
Azithromycin	Azithromycin	14	14
Celecoxib	Celecoxib	14	suppressed
Eszopiclone	Eszopiclone	14	suppressed
Ketorolac Tromethamine	Ketorolac Tromethamine	14	suppressed
Liothyronine Sodium	Liothyronine Sodium	14	suppressed
Lovastatin	Lovastatin	14	suppressed
Nifedipine Er	Nifedipine	14	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	14	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	13	suppressed
Bumetanide	Bumetanide	13	suppressed
Fludrocortisone Acetate	Fludrocortisone Acetate	13	suppressed
Haloperidol	Haloperidol	13	suppressed
Incruse Ellipta	Umeclidinium Bromide	13	suppressed
Lantus	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Olanzapine	Olanzapine	13	suppressed
Paxlovid	Nirmatrelvir/Ritonavir	13	12
Prazosin Hcl	Prazosin Hcl	13	suppressed
Primidone	Primidone	13	suppressed
Dexmethylphenidate Hcl	Dexmethylphenidate Hcl	12	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	12	suppressed
Methylphenidate Er	Methylphenidate Hcl	12	suppressed
Minocycline Hcl	Minocycline Hcl	12	suppressed
Myrbetriq	Mirabegron	12	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	12	suppressed
Omega-3 Acid Ethyl Esters	Omega-3 Acid Ethyl Esters	12	suppressed
Spiriva Handihaler	Tiotropium Bromide	12	suppressed
Acyclovir	Acyclovir	11	suppressed
Mesalamine	Mesalamine	11	suppressed
Methylprednisolone	Methylprednisolone	11	suppressed
Terbinafine Hcl	Terbinafine Hcl	11	suppressed
Testosterone	Testosterone	11	suppressed
Timolol Maleate	Timolol Maleate	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