DR. STEVEN A MARKS DO
Prescription History 1528046547
Internal Medicine - Pulmonary Disease in Phoenix, AZ
What does Dr. Marks prescribe?
In 2024, Dr. Marks wrote 118 Medicare prescriptions for 4 medications. The most prescribed was Stiolto Respimat (tiotropium br/olodaterol hcl), with 46 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. Marks prescribes.
Medications 4 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 Arizona prescribers.
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 Arizona prescribers
Dr. Marks wrote 46 prescriptions for Stiolto Respimat, about 1.3 times as often as the typical Arizona prescriber of it (35). Medicare paid $472.99 per fill, versus $684.06 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 asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Arizona prescribers
Dr. Marks wrote 29 prescriptions for Trelegy Ellipta, about half as often as the typical Arizona prescriber of it (58). Medicare paid $670.06 per fill, versus $917.33 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
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 Arizona prescribers
Dr. Marks wrote 26 prescriptions for Albuterol Sulfate Hfa, about half as often as the typical Arizona prescriber of it (61). Medicare paid $19.93 per fill, versus $28.74 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
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 Arizona prescribers
Dr. Marks wrote 17 prescriptions for Anoro Ellipta, about half as often as the typical Arizona prescriber of it (32). Medicare paid $728.78 per fill, versus $614.33 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. Marks’s prescriptions
What does Dr. Marks prescribe most?
In 2024 Medicare Part D data, Dr. Marks's most prescribed medications were Stiolto Respimat (46), Trelegy Ellipta (29) and Albuterol Sulfate Hfa (26).
How does Dr. Marks's prescribing compare with other Arizona prescribers?
Of the 4 medications with a state comparison, Dr. Marks prescribes 1 more often than the typical Arizona prescriber and 3 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Marks 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 Arizona 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.
