Healthcare provider profile · identity verified

Daniel C Pierce, MD

Family Practice · YARMOUTH, ME · NPI 1861451080

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
Rosuvastatin Calcium	Rosuvastatin Calcium	511	154
Lisinopril	Lisinopril	478	137
Atorvastatin Calcium	Atorvastatin Calcium	411	117
Amlodipine Besylate	Amlodipine Besylate	377	110
Losartan Potassium	Losartan Potassium	355	98
Simvastatin	Simvastatin	333	98
Levothyroxine Sodium	Levothyroxine Sodium	331	81
Metoprolol Succinate	Metoprolol Succinate	244	68
Hydrochlorothiazide	Hydrochlorothiazide	216	66
Omeprazole	Omeprazole	187	62
Alendronate Sodium	Alendronate Sodium	152	44
Eliquis	Apixaban	150	36
Metformin Hcl Er	Metformin Hcl	137	40
Tamsulosin Hcl	Tamsulosin Hcl	135	39
Pravastatin Sodium	Pravastatin Sodium	132	38
Gabapentin	Gabapentin	129	44
Sertraline Hcl	Sertraline Hcl	125	38
Prednisone	Prednisone	123	93
Lorazepam	Lorazepam	112	46
Trazodone Hcl	Trazodone Hcl	110	31
Albuterol Sulfate Hfa	Albuterol Sulfate	108	64
Zolpidem Tartrate	Zolpidem Tartrate	104	38
Doxycycline Hyclate	Doxycycline Hyclate	90	79
Furosemide	Furosemide	86	32
Atenolol	Atenolol	84	22
Bupropion Xl	Bupropion Hcl	84	28
Escitalopram Oxalate	Escitalopram Oxalate	83	24
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	74	26
Metformin Hcl	Metformin Hcl	73	22
Glipizide Er	Glipizide	72	21
Tramadol Hcl	Tramadol Hcl	71	32
Jardiance	Empagliflozin	70	18
Citalopram Hbr	Citalopram Hydrobromide	66	17
Allopurinol	Allopurinol	65	19
Metoprolol Tartrate	Metoprolol Tartrate	57	16
Chlorthalidone	Chlorthalidone	55	16
Ozempic	Semaglutide	54	11
Clonazepam	Clonazepam	51	15
Fluoxetine Hcl	Fluoxetine Hcl	50	15
Duloxetine Hcl	Duloxetine Hcl	47	14
Montelukast Sodium	Montelukast Sodium	46	16
Venlafaxine Hcl Er	Venlafaxine Hcl	44	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	43	12
Spironolactone	Spironolactone	43	13
Amoxicillin	Amoxicillin	42	31
Sumatriptan Succinate	Sumatriptan Succinate	42	suppressed
Dextroamphetamine-Amphetamine	Dextroamphetamine/Amphetamine	41	suppressed
Famotidine	Famotidine	40	14
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	40	26
Potassium Chloride	Potassium Chloride	38	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	38	suppressed
Alprazolam	Alprazolam	37	15
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	36	30
Estradiol	Estradiol	36	13
Oxycodone Hcl	Oxycodone Hcl	36	11
Triamcinolone Acetonide	Triamcinolone Acetonide	36	25
Amitriptyline Hcl	Amitriptyline Hcl	35	11
Pregabalin	Pregabalin	34	13
Pantoprazole Sodium	Pantoprazole Sodium	33	12
Enalapril Maleate	Enalapril Maleate	31	suppressed
Irbesartan	Irbesartan	31	suppressed
Mirtazapine	Mirtazapine	31	14
Paxlovid	Nirmatrelvir/Ritonavir	31	31
Finasteride	Finasteride	30	suppressed
Ropinirole Hcl	Ropinirole Hcl	30	suppressed
Synthroid	Levothyroxine Sodium	30	suppressed
Eszopiclone	Eszopiclone	29	suppressed
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	28	suppressed
Carvedilol	Carvedilol	27	suppressed
Olanzapine	Olanzapine	27	suppressed
Breo Ellipta	Fluticasone/Vilanterol	26	suppressed
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	26	14
Topiramate	Topiramate	26	12
Doxazosin Mesylate	Doxazosin Mesylate	25	suppressed
Ezetimibe	Ezetimibe	25	suppressed
Memantine Hcl	Memantine Hcl	25	suppressed
Risperidone	Risperidone	25	suppressed
Valacyclovir	Valacyclovir Hcl	25	16
Xarelto	Rivaroxaban	25	suppressed
Donepezil Hcl	Donepezil Hcl	23	suppressed
Meloxicam	Meloxicam	23	suppressed
Valsartan	Valsartan	23	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	22	suppressed
Verapamil Er	Verapamil Hcl	22	suppressed
Buspirone Hcl	Buspirone Hcl	21	suppressed
Arnuity Ellipta	Fluticasone Furoate	20	suppressed
Azithromycin	Azithromycin	20	18
Cephalexin	Cephalexin	20	17
Ciprofloxacin Hcl	Ciprofloxacin Hcl	20	15
Lansoprazole	Lansoprazole	20	suppressed
Wixela Inhub	Fluticasone Propion/Salmeterol	20	suppressed
Clopidogrel	Clopidogrel Bisulfate	18	suppressed
Naltrexone Hcl	Naltrexone Hcl	18	suppressed
Fenofibrate	Fenofibrate Nanocrystallized	16	suppressed
Ipratropium Bromide	Ipratropium Bromide	16	suppressed
Ramipril	Ramipril	16	suppressed
Linzess	Linaclotide	15	suppressed
Lovastatin	Lovastatin	15	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	15	13
Paroxetine Hcl	Paroxetine Hcl	15	suppressed
Ventolin Hfa	Albuterol Sulfate	15	suppressed
Diphenoxylate-Atropine	Diphenoxylate Hcl/Atropine	14	suppressed
Januvia	Sitagliptin Phosphate	14	suppressed
Methylphenidate Er	Methylphenidate Hcl	14	suppressed
Methylphenidate Hcl	Methylphenidate Hcl	14	suppressed
Nystatin	Nystatin	14	11
Basaglar Kwikpen U-100	Insulin Glargine,hum.Rec.Anlog	13	suppressed
Carbamazepine	Carbamazepine	13	suppressed
Diazepam	Diazepam	13	suppressed
Hydralazine Hcl	Hydralazine Hcl	13	suppressed
Ketoconazole	Ketoconazole	13	suppressed
Methadone Hcl	Methadone Hcl	13	suppressed
Ultra-Fine Mini Pen Needle	Pen Needle, Diabetic	13	suppressed
Vyvanse	Lisdexamfetamine Dimesylate	13	suppressed
Zolpidem Tartrate Er	Zolpidem Tartrate	13	suppressed
Abrysvo	Rsv Vacc, Pref A And Pref B/Pf	12	12
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	12	suppressed
Celecoxib	Celecoxib	12	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	12	suppressed
Warfarin Sodium	Warfarin Sodium	12	suppressed
Cholestyramine	Cholestyramine (With Sugar)	11	suppressed
Colchicine	Colchicine	11	suppressed
Enoxaparin Sodium	Enoxaparin Sodium	11	suppressed
Jantoven	Warfarin Sodium	11	suppressed
Levetiracetam	Levetiracetam	11	suppressed
Metronidazole	Metronidazole	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