RICHARD A. SILVERSTEIN MD
Prescription History 1205907284
Internal Medicine in Panorama City, CA
What does Dr. Silverstein prescribe?
In 2024, Dr. Silverstein wrote 256 Medicare prescriptions for 11 medications. The most prescribed was Atorvastatin Calcium, with 49 prescriptions for 46 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. Silverstein prescribes.
Medications 11 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
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 California prescribers
Dr. Silverstein wrote 49 prescriptions for Atorvastatin Calcium, about 24% as often as the typical California prescriber of it (202). Medicare paid $12.50 per fill, versus $10.47 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with California prescribers
Dr. Silverstein wrote 35 prescriptions for Amlodipine Besylate, about 25% as often as the typical California prescriber of it (141). Medicare paid $11.10 per fill, versus $7.08 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with California prescribers
Dr. Silverstein wrote 30 prescriptions for Levothyroxine Sodium, about 24% as often as the typical California prescriber of it (125). Medicare paid $17.51 per fill, versus $13.30 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 California prescribers
Dr. Silverstein wrote 30 prescriptions for Losartan Potassium, about 25% as often as the typical California prescriber of it (121). Medicare paid $13.25 per fill, versus $10.35 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
Lisinopril is used to treat high blood pressure.
Compared with California prescribers
Dr. Silverstein wrote 25 prescriptions for Lisinopril, about 26% as often as the typical California prescriber of it (98). Medicare paid $11.06 per fill, versus $8.30 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with California prescribers
Dr. Silverstein wrote 21 prescriptions for Omeprazole, about 27% as often as the typical California prescriber of it (78). Medicare paid $11.75 per fill, versus $11.26 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Dr. Silverstein wrote 16 prescriptions for Metformin Hcl, about 16% as often as the typical California prescriber of it (100). Medicare paid $12.28 per fill, versus $9.26 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Silverstein wrote 14 prescriptions for Atenolol, about 28% as often as the typical California prescriber of it (50). Medicare paid $12.19 per fill, versus $9.20 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
Rosuvastatin 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 California prescribers
Dr. Silverstein wrote 13 prescriptions for Rosuvastatin Calcium, about 13% as often as the typical California prescriber of it (101). Medicare paid $11.67 per fill, versus $15.64 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
Simvastatin 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 California prescribers
Dr. Silverstein wrote 12 prescriptions for Simvastatin, about 19% as often as the typical California prescriber of it (63). Medicare paid $10.56 per fill, versus $9.03 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 high blood pressure.
Compared with California prescribers
Dr. Silverstein wrote 11 prescriptions for Hydrochlorothiazide, about 18% as often as the typical California prescriber of it (62). Medicare paid $10.82 per fill, versus $5.71 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. Silverstein’s prescriptions
What does Dr. Silverstein prescribe most?
In 2024 Medicare Part D data, Dr. Silverstein's most prescribed medications were Atorvastatin Calcium (49), Amlodipine Besylate (35) and Levothyroxine Sodium (30).
How does Dr. Silverstein's prescribing compare with other California prescribers?
Of the 11 medications with a state comparison, Dr. Silverstein prescribes 11 less often than the typical California prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Silverstein 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.
