DR. NATHANIEL JOHN MADSEN M.D.
Prescription History 1609927607
Internal Medicine - Interventional Cardiology in Bozeman, MT

Active since January 16, 2007PECOS EnrolledAccepts Medicare Assignment
80.8/100
CMS Quality Rating
937 HIGHLAND BLVD STE 5510, BOZEMAN, MT 59715(406) 414-3959 Get Directions

NPPES record last updated: April 15, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 22, 2021, Feb 17, 2020 (2 updates tracked since 2020).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. NATHANIEL JOHN MADSEN M.D., an active Interventional Cardiology specialist practicing in Bozeman, MT. Our medical registry currently tracks 4 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 98 documented patient claims. Among these therapy options, the most frequently utilized medication is Atorvastatin Calcium, which accounts for 39 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.

4
Medications
98
Total Claims
200
30-Day Fills
Atorvastatin Calcium
Most Prescribed · 39 claims
View details
4 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by DR. NATHANIEL JOHN MADSEN M.D. in 2023, with prescription volumes, average cost per fill, and MT state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other MT PrescribersVs. MT Avg

About Atorvastatin Calcium: Atorvastatin is used along with a proper diet to help lower bad cholesterol and fats (such as LDL, triglycerides) and raise good cholesterol (HDL) in the blood. Show more ▾

It belongs to a group of drugs known as statins. It works by reducing the amount of cholesterol made by the liver. Lowering bad cholesterol and triglycerides and raising good cholesterol decreases the risk of heart disease and helps prevent strokes and heart attacks. In addition to eating a proper diet (such as a low-cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Consult your doctor for more details. A pyrrole and heptanoic acid derivative, HYDROXYMETHYLGLUTARYL-COA REDUCTASE INHIBITOR (statin), and ANTICHOLESTEREMIC AGENT that is used to reduce serum levels of LDL-CHOLESTEROL; APOLIPOPROTEIN B; and TRIGLYCERIDES. It is used to increase serum levels of HDL-CHOLESTEROL in the treatment of HYPERLIPIDEMIAS, and for the prevention of CARDIOVASCULAR DISEASES in patients with multiple risk factors.

In 2023, this provider wrote 39 Medicare prescriptions for Atorvastatin Calcium, about a quarter of the volume of the typical Montana prescriber of this medication (140). Medicare paid an average of $12.97 per fill, versus $11.75 statewide.

How often this provider prescribes it

This provider
39
MT average
140.0

This provider prescribes this medication less often than the average MT prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$12.97
MT average
$11.75

Gross Part D cost per fill; not the patient's out-of-pocket price.

79
30-Day Fills
standardized to 30-day supplies
2,370
Days of Medication
total across all patients in 2023

About Clopidogrel: Clopidogrel is used to prevent heart attacks and strokes in persons with heart disease (recent heart attack), recent stroke, or blood circulation disease (peripheral vascular disease). Show more ▾

It is also used with aspirin to treat new/worsening chest pain (new heart attack, unstable angina) and to keep blood vessels open and prevent blood clots after certain procedures (such as cardiac stent). Clopidogrel works by blocking platelets from sticking together and prevents them from forming harmful clots. It is an antiplatelet drug. It helps keep blood flowing smoothly in your body. A ticlopidine analog and platelet purinergic P2Y receptor antagonist that inhibits adenosine diphosphate-mediated PLATELET AGGREGATION. It is used to prevent THROMBOEMBOLISM in patients with ARTERIAL OCCLUSIVE DISEASES; MYOCARDIAL INFARCTION; STROKE; or ATRIAL FIBRILLATION.

In 2023, this provider wrote 35 Medicare prescriptions for Clopidogrel, about 90% of the volume of the typical Montana prescriber of this medication (39). Medicare paid an average of $15.71 per fill, versus $13.14 statewide.

How often this provider prescribes it

This provider
35
MT average
39.0

This provider's prescribing volume for this medication is in line with the average MT prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$15.71
MT average
$13.14

Gross Part D cost per fill; not the patient's out-of-pocket price.

87
30-Day Fills
standardized to 30-day supplies
2,554
Days of Medication
total across all patients in 2023

About Cephalexin: This medication is used to treat a wide variety of bacterial infections. Show more ▾

This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria. This medication will not work for viral infections (such as common cold, flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness. A semisynthetic cephalosporin antibiotic with antimicrobial activity similar to that of CEPHALORIDINE or CEPHALOTHIN, but somewhat less potent. It is effective against both gram-positive and gram-negative organisms.

In 2023, this provider wrote 12 Medicare prescriptions for Cephalexin, about half the volume of the typical Montana prescriber of this medication (25). Medicare paid an average of $3.56 per fill, versus $7.83 statewide.

How often this provider prescribes it

This provider
12
MT average
25.0

This provider prescribes this medication less often than the average MT prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$3.56
MT average
$7.83

This provider's average cost per fill is below the MT average for this medication.

12
30-Day Fills
standardized to 30-day supplies
37
Days of Medication
total across all patients in 2023

About Eliquis: Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery. Show more ▾

With atrial fibrillation, part of the heart does not beat the way it should. This can lead to blood clots forming, which can travel to other parts of your body (such as the lungs or legs) or increase your risk for stroke. In the United States, apixaban is also approved to treat certain types of blood clots (deep vein thrombosis-DVT, pulmonary embolus-PE) and to prevent them from forming again. Apixaban is an anticoagulant that works by blocking certain clotting proteins in your blood.

In 2023, this provider wrote 12 Medicare prescriptions for Eliquis, about a quarter of the volume of the typical Montana prescriber of this medication (57). Medicare paid an average of $990.50 per fill, versus $814.17 statewide.

How often this provider prescribes it

This provider
12
MT average
57.0

This provider prescribes this medication less often than the average MT prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$990.50
MT average
$814.17

Gross Part D cost per fill; not the patient's out-of-pocket price.

22
30-Day Fills
standardized to 30-day supplies
637
Days of Medication
total across all patients in 2023
No medications match the current filters.
More than typical Typical Less than typical= prescription volume vs the average MT prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the MT average cost per fill.

About this data. The prescription history for DR. NATHANIEL JOHN MADSEN M.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Interventional Cardiology prescribing approach at this Bozeman, MT practice.

Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average volume among MT prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.