OLGA DIAZ MD
Prescription History 1285011908
Obstetrics & Gynecology in Los Angeles, CA
What does Dr. Diaz prescribe?
In 2024, Dr. Diaz wrote 197 Medicare prescriptions for 6 medications. The most prescribed was Estradiol, with 85 prescriptions for 52 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. Diaz prescribes.
Medications 6 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 medication is a hormone.
Compared with California prescribers
Dr. Diaz wrote 85 prescriptions for Estradiol, about 2.2 times as often as the typical California prescriber of it (38). Medicare paid $39.66 per fill, versus $56.87 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 a hormone (estrogen).
Compared with California prescribers
Dr. Diaz wrote 49 prescriptions for Yuvafem, about 2 times as often as the typical California prescriber of it (25). Medicare paid $107.50 per fill, versus $137.29 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
Fluconazole is used to treat vaginal yeast infections.
Compared with California prescribers
Dr. Diaz wrote 23 prescriptions for Fluconazole, about as often as the typical California prescriber of it (21). Medicare paid $6.51 per fill, versus $17.16 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 a variety of skin conditions (such as eczema, psoriasis, dermatitis, allergies, rash).
Compared with California prescribers
Dr. Diaz wrote 16 prescriptions for Clobetasol Propionate, about half as often as the typical California prescriber of it (38). Medicare paid $18.08 per fill, versus $43.46 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 a hormone (estrogen).
Compared with California prescribers
Dr. Diaz wrote 12 prescriptions for Dotti, about half as often as the typical California prescriber of it (20). Medicare paid $76.68 per fill, versus $96.28 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
Progesterone is a type of hormone (progestin).
Compared with California prescribers
Dr. Diaz wrote 12 prescriptions for Progesterone, about 37% as often as the typical California prescriber of it (32). Medicare paid $28.70 per fill, versus $38.00 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. Diaz’s prescriptions
What does Dr. Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Diaz's most prescribed medications were Estradiol (85), Yuvafem (49) and Fluconazole (23).
How does Dr. Diaz's prescribing compare with other California prescribers?
Of the 6 medications with a state comparison, Dr. Diaz prescribes 2 more often than the typical California prescriber, 1 about as often and 3 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Diaz 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.
