Healthcare provider profile · identity verified

Heidi M. Duncan, MD

Family Practice · BILLINGS, MT · NPI 1376645341

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
Levothyroxine Sodium	Levothyroxine Sodium	432	106
Atorvastatin Calcium	Atorvastatin Calcium	249	75
Omeprazole	Omeprazole	175	50
Losartan Potassium	Losartan Potassium	159	46
Gabapentin	Gabapentin	158	34
Amlodipine Besylate	Amlodipine Besylate	147	38
Metoprolol Succinate	Metoprolol Succinate	142	41
Trazodone Hcl	Trazodone Hcl	141	38
Potassium Chloride	Potassium Chloride	133	37
Lisinopril	Lisinopril	126	35
Pantoprazole Sodium	Pantoprazole Sodium	121	34
Hydrochlorothiazide	Hydrochlorothiazide	117	34
Oxycodone Hcl	Oxycodone Hcl	110	12
Simvastatin	Simvastatin	107	27
Estradiol	Estradiol	106	41
Sertraline Hcl	Sertraline Hcl	84	25
Lorazepam	Lorazepam	82	20
Metformin Hcl Er	Metformin Hcl	81	24
Clonazepam	Clonazepam	78	13
Pravastatin Sodium	Pravastatin Sodium	78	21
Furosemide	Furosemide	76	21
Fluoxetine Hcl	Fluoxetine Hcl	75	20
Bupropion Xl	Bupropion Hcl	72	21
Zolpidem Tartrate	Zolpidem Tartrate	71	22
Meloxicam	Meloxicam	69	25
Escitalopram Oxalate	Escitalopram Oxalate	68	18
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	68	16
Eliquis	Apixaban	64	13
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	61	20
Tramadol Hcl	Tramadol Hcl	60	18
Alendronate Sodium	Alendronate Sodium	56	19
Duloxetine Hcl	Duloxetine Hcl	50	15
Spironolactone	Spironolactone	50	11
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	49	20
Metformin Hcl	Metformin Hcl	48	14
Montelukast Sodium	Montelukast Sodium	48	14
Diclofenac Sodium	Diclofenac Sodium	47	19
Synthroid	Levothyroxine Sodium	47	suppressed
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	46	14
Oxybutynin Chloride Er	Oxybutynin Chloride	46	17
Celecoxib	Celecoxib	45	14
Valacyclovir	Valacyclovir Hcl	45	21
Citalopram Hbr	Citalopram Hydrobromide	44	11
Ozempic	Semaglutide	44	suppressed
Famotidine	Famotidine	43	15
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	43	suppressed
Methocarbamol	Methocarbamol	41	suppressed
Albuterol Sulfate Hfa	Albuterol Sulfate	40	18
Rosuvastatin Calcium	Rosuvastatin Calcium	40	12
Trulicity	Dulaglutide	38	suppressed
Fluticasone Propionate	Fluticasone Propionate	37	13
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	36	11
Atenolol	Atenolol	34	suppressed
Venlafaxine Hcl Er	Venlafaxine Hcl	34	suppressed
Allopurinol	Allopurinol	32	suppressed
Alprazolam	Alprazolam	32	suppressed
Ondansetron Odt	Ondansetron	32	14
Propranolol Hcl	Propranolol Hcl	32	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	31	16
Paroxetine Hcl	Paroxetine Hcl	30	suppressed
Tizanidine Hcl	Tizanidine Hcl	30	11
Warfarin Sodium	Warfarin Sodium	29	suppressed
Butalbital-Acetaminophen-Caffe	Butalb/Acetaminophen/Caffeine	28	suppressed
Metoprolol Tartrate	Metoprolol Tartrate	28	suppressed
Eszopiclone	Eszopiclone	27	suppressed
Fluconazole	Fluconazole	25	17
Sumatriptan Succinate	Sumatriptan Succinate	25	suppressed
Oxycontin	Oxycodone Hcl	24	suppressed
Ropinirole Hcl	Ropinirole Hcl	24	suppressed
Boostrix Tdap	Diphth,pertuss(Acell),tet Vac	23	23
Dicyclomine Hcl	Dicyclomine Hcl	22	suppressed
Meclizine Hcl	Meclizine Hcl	22	suppressed
Np Thyroid	Thyroid,pork	22	suppressed
Pregabalin	Pregabalin	22	suppressed
Carvedilol	Carvedilol	21	suppressed
Memantine Hcl	Memantine Hcl	21	suppressed
Myrbetriq	Mirabegron	21	suppressed
Premarin	Estrogens, Conjugated	21	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	20	suppressed
Cephalexin	Cephalexin	20	14
Clonidine Hcl	Clonidine Hcl	20	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	20	suppressed
Benazepril Hcl	Benazepril Hcl	19	suppressed
Ezetimibe	Ezetimibe	19	suppressed
Morphine Sulfate Er	Morphine Sulfate	19	suppressed
Baclofen	Baclofen	18	suppressed
Lamotrigine	Lamotrigine	18	suppressed
Mounjaro	Tirzepatide	18	suppressed
Valsartan	Valsartan	18	suppressed
Amoxicillin	Amoxicillin	17	12
Glimepiride	Glimepiride	17	suppressed
Januvia	Sitagliptin Phosphate	17	suppressed
Ondansetron Hcl	Ondansetron Hcl	17	suppressed
Prednisone	Prednisone	17	suppressed
Azithromycin	Azithromycin	16	12
Buspirone Hcl	Buspirone Hcl	16	suppressed
Butalbital-Aspirin-Caffeine	Butalbital/Aspirin/Caffeine	15	suppressed
Donepezil Hcl	Donepezil Hcl	15	suppressed
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	14	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	14	suppressed
Primidone	Primidone	14	suppressed
Propranolol Hcl Er	Propranolol Hcl	14	suppressed
Combivent Respimat	Ipratropium/Albuterol Sulfate	13	suppressed
Ramipril	Ramipril	13	suppressed
Acyclovir	Acyclovir	12	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	12	suppressed
Azelastine Hcl	Azelastine Hcl	12	suppressed
Diazepam	Diazepam	12	suppressed
Liothyronine Sodium	Liothyronine Sodium	12	suppressed
Metronidazole	Metronidazole	12	suppressed
Modafinil	Modafinil	12	suppressed
Nystatin	Nystatin	12	suppressed
Tamsulosin Hcl	Tamsulosin Hcl	12	suppressed
Temazepam	Temazepam	12	suppressed
Concerta	Methylphenidate Hcl	11	suppressed
Hydrocortisone	Hydrocortisone	11	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	11	suppressed
Ibandronate Sodium	Ibandronate Sodium	11	suppressed
Lisdexamfetamine Dimesylate	Lisdexamfetamine Dimesylate	11	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	11	suppressed
Raloxifene Hcl	Raloxifene Hcl	11	suppressed
Tresiba Flextouch U-200	Insulin Degludec	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