CRYSTAL HERRERA APRN
Prescription History 1831820182
Nurse Practitioner - Acute Care in San Antonio, TX
What does Crystal Herrera prescribe?
In 2024, Crystal Herrera wrote 50 Medicare prescriptions for 4 medications. The most prescribed was Atorvastatin Calcium, with 16 prescriptions for 16 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 Crystal Herrera 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 Texas 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 Texas prescribers
Crystal Herrera wrote 16 prescriptions for Atorvastatin Calcium, about 9% as often as the typical Texas prescriber of it (180). Medicare paid $3.97 per fill, versus $9.48 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Texas prescribers
Crystal Herrera wrote 12 prescriptions for Losartan Potassium, about 11% as often as the typical Texas prescriber of it (111). Medicare paid $5.49 per fill, versus $9.74 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
Cefdinir is used to treat a wide variety of bacterial infections.
Compared with Texas prescribers
Crystal Herrera wrote 11 prescriptions for Cefdinir, about 36% as often as the typical Texas prescriber of it (31). Medicare paid $9.67 per fill, versus $15.72 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 Texas prescribers
Crystal Herrera wrote 11 prescriptions for Clopidogrel, about 17% as often as the typical Texas prescriber of it (64). Medicare paid $2.78 per fill, versus $11.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Crystal Herrera’s prescriptions
What does Crystal Herrera prescribe most?
In 2024 Medicare Part D data, Crystal Herrera's most prescribed medications were Atorvastatin Calcium (16), Losartan Potassium (12) and Cefdinir (11).
How does Crystal Herrera's prescribing compare with other Texas prescribers?
Of the 4 medications with a state comparison, Crystal Herrera prescribes 4 less often than the typical Texas prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Crystal Herrera 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.
