BRANDON S ALLEN MD
Prescription History 1215499421
Family Medicine in Ennis, MT
What does Dr. Allen prescribe?
In 2024, Dr. Allen wrote 1,437 Medicare prescriptions for 50 medications. The most prescribed was Atorvastatin Calcium, with 114 prescriptions for 39 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Allen prescribes.
Medications 50 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Montana prescribers.
What it is used for
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.
Compared with Montana prescribers
Dr. Allen wrote 114 prescriptions for Atorvastatin Calcium, about 73% as often as the typical Montana prescriber of it (156). Medicare paid $7.26 per fill, versus $9.17 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rosuvastatin 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.
Compared with Montana prescribers
Dr. Allen wrote 81 prescriptions for Rosuvastatin Calcium, about as often as the typical Montana prescriber of it (79). Medicare paid $13.12 per fill, versus $11.51 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lisinopril is used to treat high blood pressure.
Compared with Montana prescribers
Dr. Allen wrote 67 prescriptions for Lisinopril, about 64% as often as the typical Montana prescriber of it (104). Medicare paid $5.96 per fill, versus $6.33 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Montana prescribers
Dr. Allen wrote 64 prescriptions for Tamsulosin Hcl, about 83% as often as the typical Montana prescriber of it (77). Medicare paid $11.87 per fill, versus $14.01 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Montana prescribers
Dr. Allen wrote 62 prescriptions for Losartan Potassium, about half as often as the typical Montana prescriber of it (111). Medicare paid $10.53 per fill, versus $9.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Montana prescribers
Dr. Allen wrote 60 prescriptions for Levothyroxine Sodium, about 40% as often as the typical Montana prescriber of it (152). Medicare paid $9.26 per fill, versus $9.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with Montana prescribers
Dr. Allen wrote 58 prescriptions for Gabapentin, about 72% as often as the typical Montana prescriber of it (80). Medicare paid $13.74 per fill, versus $13.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Montana prescribers
Dr. Allen wrote 56 prescriptions for Amlodipine Besylate, about half as often as the typical Montana prescriber of it (109). Medicare paid $6.83 per fill, versus $5.61 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Montana prescribers
Dr. Allen wrote 56 prescriptions for Omeprazole, about half as often as the typical Montana prescriber of it (97). Medicare paid $12.23 per fill, versus $9.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with Montana prescribers
Dr. Allen wrote 43 prescriptions for Prednisone, about 1.2 times as often as the typical Montana prescriber of it (37). Medicare paid $2.07 per fill, versus $4.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Montana prescribers
Dr. Allen wrote 35 prescriptions for Metformin Hcl, about half as often as the typical Montana prescriber of it (61). Medicare paid $9.98 per fill, versus $7.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Montana prescribers
Dr. Allen wrote 34 prescriptions for Jardiance, about 83% as often as the typical Montana prescriber of it (41). Medicare paid $1,072.43 per fill, versus $959.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Montana prescribers
Dr. Allen wrote 34 prescriptions for Metoprolol Succinate, about 35% as often as the typical Montana prescriber of it (96). Medicare paid $12.95 per fill, versus $13.68 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Montana prescribers
Dr. Allen wrote 34 prescriptions for Pantoprazole Sodium, about half as often as the typical Montana prescriber of it (64). Medicare paid $10.26 per fill, versus $11.78 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with Montana prescribers
Dr. Allen wrote 30 prescriptions for Hydrochlorothiazide, about half as often as the typical Montana prescriber of it (61). Medicare paid $4.22 per fill, versus $3.80 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to relieve moderate to severe pain.
Compared with Montana prescribers
Dr. Allen wrote 28 prescriptions for Hydrocodone-Acetaminophen, about half as often as the typical Montana prescriber of it (61). Medicare paid $24.24 per fill, versus $16.69 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Montana prescribers
Dr. Allen wrote 26 prescriptions for Potassium Chloride, about 38% as often as the typical Montana prescriber of it (68). Medicare paid $27.68 per fill, versus $20.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery.
Compared with Montana prescribers
Dr. Allen wrote 25 prescriptions for Eliquis, about 36% as often as the typical Montana prescriber of it (70). Medicare paid $939.04 per fill, versus $856.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with Montana prescribers
Dr. Allen wrote 24 prescriptions for Finasteride, about half as often as the typical Montana prescriber of it (45). Medicare paid $22.89 per fill, versus $11.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body.
Compared with Montana prescribers
Dr. Allen wrote 24 prescriptions for Warfarin Sodium, about half as often as the typical Montana prescriber of it (41). Medicare paid $11.36 per fill, versus $8.86 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with Montana prescribers
Dr. Allen wrote 23 prescriptions for Allopurinol, about half as often as the typical Montana prescriber of it (47). Medicare paid $14.67 per fill, versus $9.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections.
Compared with Montana prescribers
Dr. Allen wrote 23 prescriptions for Amoxicillin-Clavulanate Potass, about as often as the typical Montana prescriber of it (23). Medicare paid $6.86 per fill, versus $10.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Meloxicam is used to treat arthritis.
Compared with Montana prescribers
Dr. Allen wrote 23 prescriptions for Meloxicam, about half as often as the typical Montana prescriber of it (47). Medicare paid $4.05 per fill, versus $4.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Methocarbamol is used to treat muscle spasms/pain.
Compared with Montana prescribers
Dr. Allen wrote 22 prescriptions for Methocarbamol, about 76% as often as the typical Montana prescriber of it (29). Medicare paid $3.36 per fill, versus $8.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with Montana prescribers
Dr. Allen wrote 22 prescriptions for Tramadol Hcl, about half as often as the typical Montana prescriber of it (45). Medicare paid $8.93 per fill, versus $6.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Montana prescribers
Dr. Allen wrote 21 prescriptions for Atenolol, about 76% as often as the typical Montana prescriber of it (28). Medicare paid $4.94 per fill, versus $6.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Montana prescribers
Dr. Allen wrote 20 prescriptions for Metformin Hcl Er, about half as often as the typical Montana prescriber of it (47). Medicare paid $7.83 per fill, versus $8.81 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Montana prescribers
Dr. Allen wrote 19 prescriptions for Furosemide, about 28% as often as the typical Montana prescriber of it (68). Medicare paid $3.18 per fill, versus $4.59 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery.
Compared with Montana prescribers
Dr. Allen wrote 19 prescriptions for Xarelto, about half as often as the typical Montana prescriber of it (35). Medicare paid $1,462.76 per fill, versus $921.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Montana prescribers
Dr. Allen wrote 18 prescriptions for Duloxetine Hcl, about 34% as often as the typical Montana prescriber of it (53). Medicare paid $41.49 per fill, versus $19.23 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dulaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Montana prescribers
Dr. Allen wrote 17 prescriptions for Trulicity, about half as often as the typical Montana prescriber of it (29). Medicare paid $1,161.60 per fill, versus $1,153.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Montana prescribers
Dr. Allen wrote 16 prescriptions for Albuterol Sulfate Hfa, about 38% as often as the typical Montana prescriber of it (43). Medicare paid $28.73 per fill, versus $34.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clonazepam is used to prevent and control seizures.
Compared with Montana prescribers
Dr. Allen wrote 16 prescriptions for Clonazepam, about 38% as often as the typical Montana prescriber of it (42). Medicare paid $12.14 per fill, versus $5.92 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with Montana prescribers
Dr. Allen wrote 16 prescriptions for Lisinopril-Hydrochlorothiazide, about half as often as the typical Montana prescriber of it (30). Medicare paid $7.87 per fill, versus $7.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Simvastatin 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.
Compared with Montana prescribers
Dr. Allen wrote 16 prescriptions for Simvastatin, about 25% as often as the typical Montana prescriber of it (65). Medicare paid $7.09 per fill, versus $7.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This drug is used to treat high blood pressure.
Compared with Montana prescribers
Dr. Allen wrote 15 prescriptions for Losartan-Hydrochlorothiazide, about half as often as the typical Montana prescriber of it (31). Medicare paid $16.61 per fill, versus $13.14 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Torsemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Montana prescribers
Dr. Allen wrote 15 prescriptions for Torsemide, about half as often as the typical Montana prescriber of it (35). Medicare paid $16.43 per fill, versus $15.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Montana prescribers
Dr. Allen wrote 14 prescriptions for Lantus Solostar, about half as often as the typical Montana prescriber of it (31). Medicare paid $120.38 per fill, versus $127.65 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Montana prescribers
Dr. Allen wrote 13 prescriptions for Anoro Ellipta, about 61% as often as the typical Montana prescriber of it (21). Medicare paid $777.23 per fill, versus $537.81 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Montana prescribers
Dr. Allen wrote 13 prescriptions for Bupropion Xl, about 34% as often as the typical Montana prescriber of it (38). Medicare paid $20.04 per fill, versus $21.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with Montana prescribers
Dr. Allen wrote 13 prescriptions for Diltiazem 24hr Er (Cd), about half as often as the typical Montana prescriber of it (28). Medicare paid $22.34 per fill, versus $21.75 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help relieve moderate to severe pain.
Compared with Montana prescribers
Dr. Allen wrote 13 prescriptions for Oxycodone Hcl, about 30% as often as the typical Montana prescriber of it (44). Medicare paid $6.18 per fill, versus $12.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination of nirmatrelvir and ritonavir is used to treat coronavirus disease (COVID-19) in people who have mild to moderate symptoms and have a high risk for COVID-19 complications.
Compared with Montana prescribers
Dr. Allen wrote 13 prescriptions for Paxlovid, about 74% as often as the typical Montana prescriber of it (18). Medicare paid $0.00 per fill, versus $72.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Spironolactone is used to treat high blood pressure and heart failure.
Compared with Montana prescribers
Dr. Allen wrote 13 prescriptions for Spironolactone, about 27% as often as the typical Montana prescriber of it (48). Medicare paid $9.39 per fill, versus $8.12 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation).
Compared with Montana prescribers
Dr. Allen wrote 12 prescriptions for Celecoxib, about 29% as often as the typical Montana prescriber of it (41). Medicare paid $31.48 per fill, versus $27.60 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is an antibiotic used to treat bladder infections (acute cystitis).
Compared with Montana prescribers
Dr. Allen wrote 12 prescriptions for Nitrofurantoin Mono-Macro, about half as often as the typical Montana prescriber of it (20). Medicare paid $8.04 per fill, versus $16.17 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Montana prescribers
Dr. Allen wrote 12 prescriptions for Sertraline Hcl, about 22% as often as the typical Montana prescriber of it (54). Medicare paid $10.92 per fill, versus $8.27 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Montana prescribers
Dr. Allen wrote 11 prescriptions for Basaglar Kwikpen U-100, about half as often as the typical Montana prescriber of it (22). Medicare paid $464.35 per fill, versus $398.00 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to control seizures.
Compared with Montana prescribers
Dr. Allen wrote 11 prescriptions for Primidone, about 41% as often as the typical Montana prescriber of it (27). Medicare paid $14.81 per fill, versus $21.87 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with Montana prescribers
Dr. Allen wrote 11 prescriptions for Zolpidem Tartrate, about 29% as often as the typical Montana prescriber of it (38). Medicare paid $9.07 per fill, versus $5.51 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Allen’s prescriptions
What does Dr. Allen prescribe most?
In 2024 Medicare Part D data, Dr. Allen's most prescribed medications were Atorvastatin Calcium (114), Rosuvastatin Calcium (81) and Lisinopril (67).
How does Dr. Allen's prescribing compare with other Montana prescribers?
Of the 50 medications with a state comparison, Dr. Allen prescribes 7 about as often than the typical Montana prescriber and 43 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Allen prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Montana prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
