JILLIAN MECHELE CASTOR RN
Prescription History 1356969463
Student in an Organized Health Care Education/Training Program in Monterey, CA
What does Jillian Castor prescribe?
In 2024, Jillian Castor wrote 169 Medicare prescriptions for 10 medications. The most prescribed was Hydrocodone-Acetaminophen (hydrocodone/acetaminophen), with 29 prescriptions for 19 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 Jillian Castor prescribes.
Medications 10 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 California prescribers.
What it is used for
This combination medication is used to relieve moderate to severe pain.
Compared with California prescribers
Jillian Castor wrote 29 prescriptions for Hydrocodone-Acetaminophen, about 38% as often as the typical California prescriber of it (76). Medicare paid $22.11 per fill, versus $21.39 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 to treat anxiety.
Compared with California prescribers
Jillian Castor wrote 26 prescriptions for Lorazepam, about 60% as often as the typical California prescriber of it (43). Medicare paid $5.01 per fill, versus $6.52 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 California prescribers
Jillian Castor wrote 20 prescriptions for Ondansetron Hcl, about 72% as often as the typical California prescriber of it (28). Medicare paid $16.08 per fill, versus $14.67 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 to treat severe nausea and vomiting from certain causes (for example, after surgery or cancer treatment).
Compared with California prescribers
Jillian Castor wrote 18 prescriptions for Prochlorperazine Maleate, about 62% as often as the typical California prescriber of it (29). Medicare paid $13.45 per fill, versus $13.81 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 California prescribers
Jillian Castor wrote 15 prescriptions for Prednisone, about 37% as often as the typical California prescriber of it (40). Medicare paid $4.07 per fill, versus $5.64 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
Anastrozole is used to treat breast cancer in women after menopause.
Compared with California prescribers
Jillian Castor wrote 14 prescriptions for Anastrozole, about 21% as often as the typical California prescriber of it (68). Medicare paid $43.44 per fill, versus $20.79 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with California prescribers
Jillian Castor wrote 13 prescriptions for Gabapentin, about 16% as often as the typical California prescriber of it (80). Medicare paid $15.32 per fill, versus $15.63 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with California prescribers
Jillian Castor wrote 12 prescriptions for Zolpidem Tartrate, about 27% as often as the typical California prescriber of it (45). Medicare paid $2.98 per fill, versus $6.02 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 by people with sickle cell anemia to reduce the number of painful crises caused by the disease and to reduce the need for blood transfusions.
Compared with California prescribers
Jillian Castor wrote 11 prescriptions for Hydroxyurea, about 31% as often as the typical California prescriber of it (35). Medicare paid $28.91 per fill, versus $28.53 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 to treat certain types of breast cancer (such as hormone-receptor-positive breast cancer) in women after menopause.
Compared with California prescribers
Jillian Castor wrote 11 prescriptions for Letrozole, about 22% as often as the typical California prescriber of it (49). Medicare paid $28.51 per fill, versus $22.86 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Jillian Castor’s prescriptions
What does Jillian Castor prescribe most?
In 2024 Medicare Part D data, Jillian Castor's most prescribed medications were Hydrocodone-Acetaminophen (29), Lorazepam (26) and Ondansetron Hcl (20).
How does Jillian Castor's prescribing compare with other California prescribers?
Of the 10 medications with a state comparison, Jillian Castor prescribes 10 less often than the typical California prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Jillian Castor 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 California 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.
