ROGER TSENG MD
Prescription History 1114548484
Internal Medicine in Cedar Rapids, IA
What does Dr. Tseng prescribe?
In 2024, Dr. Tseng wrote 140 Medicare prescriptions for 8 medications. The most prescribed was Jardiance (empagliflozin), with 28 prescriptions.
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. Tseng prescribes.
Medications 8 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 Iowa prescribers.
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 Iowa prescribers
Dr. Tseng wrote 28 prescriptions for Jardiance, about half as often as the typical Iowa prescriber of it (57). Medicare paid $329.09 per fill, versus $892.12 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
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).
Compared with Iowa prescribers
Dr. Tseng wrote 24 prescriptions for Clopidogrel, about 42% as often as the typical Iowa prescriber of it (57). Medicare paid $16.40 per fill, versus $8.98 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
Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections.
Compared with Iowa prescribers
Dr. Tseng wrote 19 prescriptions for Amoxicillin-Clavulanate Potass, about 78% as often as the typical Iowa prescriber of it (24). Medicare paid $5.43 per fill, versus $9.15 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 Iowa prescribers
Dr. Tseng wrote 17 prescriptions for Furosemide, about 16% as often as the typical Iowa prescriber of it (108). Medicare paid $4.09 per fill, versus $4.50 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
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 Iowa prescribers
Dr. Tseng wrote 17 prescriptions for Prednisone, about 35% as often as the typical Iowa prescriber of it (48). Medicare paid $2.08 per fill, versus $3.46 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
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 Iowa prescribers
Dr. Tseng wrote 13 prescriptions for Atorvastatin Calcium, about 6% as often as the typical Iowa prescriber of it (225). Medicare paid $19.57 per fill, versus $8.00 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 to help relieve moderate to severe pain.
Compared with Iowa prescribers
Dr. Tseng wrote 11 prescriptions for Oxycodone Hcl, about 29% as often as the typical Iowa prescriber of it (37). Medicare paid $2.09 per fill, versus $12.11 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 Iowa prescribers
Dr. Tseng wrote 11 prescriptions for Trazodone Hcl, about 15% as often as the typical Iowa prescriber of it (74). Medicare paid $23.01 per fill, versus $7.50 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. Tseng’s prescriptions
What does Dr. Tseng prescribe most?
In 2024 Medicare Part D data, Dr. Tseng's most prescribed medications were Jardiance (28), Clopidogrel (24) and Amoxicillin-Clavulanate Potass (19).
How does Dr. Tseng's prescribing compare with other Iowa prescribers?
Of the 8 medications with a state comparison, Dr. Tseng prescribes 1 about as often than the typical Iowa prescriber and 7 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Tseng 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 Iowa 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.
