MICHAEL ZIMMERMAN ROOT MD
Prescription History 1609370071
Internal Medicine - Critical Care Medicine in Saint Louis, MO
What does Dr. Root prescribe?
In 2024, Dr. Root wrote 31 Medicare prescriptions for 2 medications. The most prescribed was Trelegy Ellipta (fluticasone/umeclidin/vilanter), with 16 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. Root prescribes.
Medications 2 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 Missouri prescribers.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Missouri prescribers
Dr. Root wrote 16 prescriptions for Trelegy Ellipta, about 26% as often as the typical Missouri prescriber of it (61). Medicare paid $664.74 per fill, versus $819.03 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
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 Missouri prescribers
Dr. Root wrote 15 prescriptions for Prednisone, about 28% as often as the typical Missouri prescriber of it (53). Medicare paid $4.64 per fill, versus $3.63 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. Root’s prescriptions
What does Dr. Root prescribe most?
In 2024 Medicare Part D data, Dr. Root's most prescribed medications were Trelegy Ellipta (16) and Prednisone (15).
How does Dr. Root's prescribing compare with other Missouri prescribers?
Of the 2 medications with a state comparison, Dr. Root prescribes 2 less often than the typical Missouri prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Root 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 Missouri 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.
