DR. MARY MARGARET SPANNRING M.D.
Prescription History 1184635393
Hospitalist in Fort Collins, CO
What does Dr. Spannring prescribe?
In 2024, Dr. Spannring wrote 39 Medicare prescriptions for 3 medications. The most prescribed was Atorvastatin Calcium, with 15 prescriptions for 14 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. Spannring prescribes.
Medications 3 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 Colorado 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 Colorado prescribers
Dr. Spannring wrote 15 prescriptions for Atorvastatin Calcium, about 10% as often as the typical Colorado prescriber of it (150). Medicare paid $15.35 per fill, versus $10.23 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
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 Colorado prescribers
Dr. Spannring wrote 12 prescriptions for Clopidogrel, about 32% as often as the typical Colorado prescriber of it (37). Medicare paid $9.40 per fill, versus $13.85 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
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Colorado prescribers
Dr. Spannring wrote 12 prescriptions for Metoprolol Succinate, about 17% as often as the typical Colorado prescriber of it (71). Medicare paid $13.09 per fill, versus $13.38 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. Spannring’s prescriptions
What does Dr. Spannring prescribe most?
In 2024 Medicare Part D data, Dr. Spannring's most prescribed medications were Atorvastatin Calcium (15), Clopidogrel (12) and Metoprolol Succinate (12).
How does Dr. Spannring's prescribing compare with other Colorado prescribers?
Of the 3 medications with a state comparison, Dr. Spannring prescribes 3 less often than the typical Colorado prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Spannring 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 Colorado 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.
