DAVID BOYAN CAO
Prescription History 1972291508
Internal Medicine in Chicago, IL
What does David Cao prescribe?
In 2024, David Cao wrote 39 Medicare prescriptions for 2 medications. The most prescribed was Atorvastatin Calcium, with 27 prescriptions for 13 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 David Cao 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 Illinois 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 Illinois prescribers
David Cao wrote 27 prescriptions for Atorvastatin Calcium, about 13% as often as the typical Illinois prescriber of it (208). Medicare paid $12.01 per fill, versus $9.37 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Illinois prescribers
David Cao wrote 12 prescriptions for Ozempic, about 22% as often as the typical Illinois prescriber of it (55). Medicare paid $1,279.82 per fill, versus $1,303.69 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about David Cao’s prescriptions
What does David Cao prescribe most?
In 2024 Medicare Part D data, David Cao's most prescribed medications were Atorvastatin Calcium (27) and Ozempic (12).
How does David Cao's prescribing compare with other Illinois prescribers?
Of the 2 medications with a state comparison, David Cao prescribes 2 less often than the typical Illinois prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication David Cao 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 Illinois 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.
