MAX A CAYO MD, PHD
Prescription History 1083106975
Surgery in Dallas, TX
What does Dr. Cayo prescribe?
In 2024, Dr. Cayo wrote 42 Medicare prescriptions for 2 medications. The most prescribed was Oxycodone Hcl, with 28 prescriptions for 28 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. Cayo 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 Texas prescribers.
What it is used for
This medication is used to help relieve moderate to severe pain.
Compared with Texas prescribers
Dr. Cayo wrote 28 prescriptions for Oxycodone Hcl, about half as often as the typical Texas prescriber of it (59). Medicare paid $1.74 per fill, versus $16.06 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 medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Texas prescribers
Dr. Cayo wrote 14 prescriptions for Ondansetron Hcl, about half as often as the typical Texas prescriber of it (30). Medicare paid $1.25 per fill, versus $12.56 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. Cayo’s prescriptions
What does Dr. Cayo prescribe most?
In 2024 Medicare Part D data, Dr. Cayo's most prescribed medications were Oxycodone Hcl (28) and Ondansetron Hcl (14).
How does Dr. Cayo's prescribing compare with other Texas prescribers?
Of the 2 medications with a state comparison, Dr. Cayo prescribes 2 less often than the typical Texas prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Cayo 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 Texas 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.
