Healthcare provider profile · identity verified

Susan Petersen, MD

Family Practice · BILLINGS, MT · NPI 1861434037

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	634	153
Atorvastatin Calcium	Atorvastatin Calcium	372	106
Potassium Chloride	Potassium Chloride	324	88
Losartan Potassium	Losartan Potassium	297	85
Amlodipine Besylate	Amlodipine Besylate	280	78
Lisinopril	Lisinopril	243	66
Gabapentin	Gabapentin	235	58
Omeprazole	Omeprazole	217	56
Pantoprazole Sodium	Pantoprazole Sodium	186	54
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	177	37
Duloxetine Hcl	Duloxetine Hcl	175	40
Metformin Hcl Er	Metformin Hcl	153	44
Metoprolol Succinate	Metoprolol Succinate	151	44
Rosuvastatin Calcium	Rosuvastatin Calcium	142	50
Simvastatin	Simvastatin	141	36
Tramadol Hcl	Tramadol Hcl	130	41
Trazodone Hcl	Trazodone Hcl	126	44
Venlafaxine Hcl Er	Venlafaxine Hcl	120	23
Furosemide	Furosemide	117	41
Hydrochlorothiazide	Hydrochlorothiazide	116	34
Oxycodone Hcl	Oxycodone Hcl	114	19
Bupropion Xl	Bupropion Hcl	108	27
Alendronate Sodium	Alendronate Sodium	100	26
Carvedilol	Carvedilol	100	21
Eliquis	Apixaban	92	19
Metoprolol Tartrate	Metoprolol Tartrate	90	27
Metformin Hcl	Metformin Hcl	89	31
Lovastatin	Lovastatin	86	22
Sertraline Hcl	Sertraline Hcl	82	20
Escitalopram Oxalate	Escitalopram Oxalate	78	19
Glipizide Er	Glipizide	77	24
Allopurinol	Allopurinol	75	20
Hydralazine Hcl	Hydralazine Hcl	75	19
Zolpidem Tartrate	Zolpidem Tartrate	75	18
Raloxifene Hcl	Raloxifene Hcl	73	21
Clopidogrel	Clopidogrel Bisulfate	71	18
Ozempic	Semaglutide	71	12
Albuterol Sulfate Hfa	Albuterol Sulfate	70	32
Pravastatin Sodium	Pravastatin Sodium	70	22
Fluoxetine Hcl	Fluoxetine Hcl	69	18
Meloxicam	Meloxicam	69	23
Mirtazapine	Mirtazapine	69	18
Celecoxib	Celecoxib	67	20
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	66	20
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	64	18
Pregabalin	Pregabalin	63	13
Diltiazem 24hr Er (Cd)	Diltiazem Hcl	61	14
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	60	21
Isosorbide Mononitrate Er	Isosorbide Mononitrate	60	suppressed
Clonazepam	Clonazepam	59	12
Lorazepam	Lorazepam	59	12
Tizanidine Hcl	Tizanidine Hcl	59	16
Famotidine	Famotidine	58	16
Ezetimibe	Ezetimibe	53	19
Donepezil Hcl	Donepezil Hcl	52	13
Estradiol	Estradiol	52	13
Spironolactone	Spironolactone	52	18
Buspirone Hcl	Buspirone Hcl	50	16
Xarelto	Rivaroxaban	50	suppressed
Citalopram Hbr	Citalopram Hydrobromide	49	16
Montelukast Sodium	Montelukast Sodium	49	15
Morphine Sulfate Er	Morphine Sulfate	47	suppressed
Oxybutynin Chloride	Oxybutynin Chloride	46	17
Synthroid	Levothyroxine Sodium	46	11
Triamcinolone Acetonide	Triamcinolone Acetonide	46	30
Alprazolam	Alprazolam	44	11
Cephalexin	Cephalexin	41	23
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	40	12
Prednisone	Prednisone	40	20
Ropinirole Hcl	Ropinirole Hcl	40	12
Hydroxyzine Hcl	Hydroxyzine Hcl	39	11
Lamotrigine	Lamotrigine	39	11
Methocarbamol	Methocarbamol	39	12
Acetaminophen-Codeine	Acetaminophen With Codeine	37	suppressed
Fluticasone Propionate	Fluticasone Propionate	36	11
Memantine Hcl	Memantine Hcl	35	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	34	suppressed
Morphine Sulfate	Morphine Sulfate	33	suppressed
Doxepin Hcl	Doxepin Hcl	32	11
Topiramate	Topiramate	32	11
Fluconazole	Fluconazole	31	12
Myrbetriq	Mirabegron	31	suppressed
Ondansetron Odt	Ondansetron	31	14
Oxycodone-Acetaminophen	Oxycodone Hcl/Acetaminophen	31	suppressed
Warfarin Sodium	Warfarin Sodium	31	12
Amoxicillin	Amoxicillin	30	suppressed
Liothyronine Sodium	Liothyronine Sodium	30	suppressed
Solifenacin Succinate	Solifenacin Succinate	30	suppressed
Torsemide	Torsemide	30	suppressed
Buprenorphine	Buprenorphine	29	suppressed
Fenofibrate	Fenofibrate	29	suppressed
Methenamine Hippurate	Methenamine Hippurate	29	suppressed
Propranolol Hcl	Propranolol Hcl	29	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	28	suppressed
Atenolol	Atenolol	28	suppressed
Mounjaro	Tirzepatide	28	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	28	suppressed
Chlorthalidone	Chlorthalidone	27	suppressed
Doxycycline Hyclate	Doxycycline Hyclate	27	16
Jardiance	Empagliflozin	27	suppressed
Primidone	Primidone	27	suppressed
Ventolin Hfa	Albuterol Sulfate	27	suppressed
Nystatin	Nystatin	26	suppressed
Valacyclovir	Valacyclovir Hcl	25	11
Nitrofurantoin Mono-Macro	Nitrofurantoin Monohyd/M-Cryst	24	21
Pioglitazone Hcl	Pioglitazone Hcl	24	suppressed
Hydromorphone Hcl	Hydromorphone Hcl	23	suppressed
Methylprednisolone	Methylprednisolone	23	17
Nortriptyline Hcl	Nortriptyline Hcl	23	suppressed
Ondansetron Hcl	Ondansetron Hcl	22	suppressed
Oxcarbazepine	Oxcarbazepine	22	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	22	suppressed
Sumatriptan Succinate	Sumatriptan Succinate	22	suppressed
Azithromycin	Azithromycin	21	13
Trulicity	Dulaglutide	21	suppressed
Desvenlafaxine Succinate Er	Desvenlafaxine Succinate	20	suppressed
Ibuprofen	Ibuprofen	20	suppressed
Levocetirizine Dihydrochloride	Levocetirizine Dihydrochloride	19	suppressed
Baclofen	Baclofen	18	suppressed
Valsartan	Valsartan	18	suppressed
Acyclovir	Acyclovir	17	suppressed
Carbamazepine	Carbamazepine	17	suppressed
Diazepam	Diazepam	17	suppressed
Diclofenac Sodium	Diclofenac Sodium	17	suppressed
Naproxen	Naproxen	17	suppressed
Pramipexole Dihydrochloride	Pramipexole Di-Hcl	17	suppressed
Temazepam	Temazepam	17	suppressed
Belbuca	Buprenorphine Hcl	16	suppressed
Carisoprodol	Carisoprodol	16	suppressed
Januvia	Sitagliptin Phosphate	16	suppressed
Paroxetine Hcl	Paroxetine Hcl	16	suppressed
Amiloride Hcl	Amiloride Hcl	15	suppressed
Aripiprazole	Aripiprazole	15	suppressed
Olmesartan Medoxomil	Olmesartan Medoxomil	15	suppressed
Pilocarpine Hcl	Pilocarpine Hcl	15	suppressed
Spiriva Handihaler	Tiotropium Bromide	15	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	14	suppressed
Olanzapine	Olanzapine	14	suppressed
Propranolol Hcl Er	Propranolol Hcl	14	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	13	suppressed
Enalapril Maleate	Enalapril Maleate	13	suppressed
Humalog Kwikpen U-100	Insulin Lispro	13	suppressed
Klor-Con 10	Potassium Chloride	13	suppressed
Leucovorin Calcium	Leucovorin Calcium	13	suppressed
Spiriva Respimat	Tiotropium Bromide	13	suppressed
Verapamil Er	Verapamil Hcl	13	suppressed
Diltiazem 12hr Er	Diltiazem Hcl	12	suppressed
Naloxone Hcl	Naloxone Hcl	12	12
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	12	suppressed
Doxycycline Monohydrate	Doxycycline Monohydrate	11	suppressed
Dulera	Mometasone/Formoterol	11	suppressed
Ketoconazole	Ketoconazole	11	suppressed
Metronidazole	Metronidazole	11	suppressed
Promethazine Hcl	Promethazine 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