GABRIEL JOSE PEREZ LOPEZ MD
Prescription History 1962990721
Family Medicine in San Juan, PR
What does Dr. Perez Lopez prescribe?
In 2024, Dr. Perez Lopez wrote 281 Medicare prescriptions for 10 medications. The most prescribed was Atorvastatin Calcium, with 77 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. Perez Lopez 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 Puerto Rico 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 Puerto Rico prescribers
Dr. Perez Lopez wrote 77 prescriptions for Atorvastatin Calcium, about 23% as often as the typical Puerto Rico prescriber of it (337). Medicare paid $7.37 per fill, versus $10.05 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 Puerto Rico prescribers
Dr. Perez Lopez wrote 42 prescriptions for Clopidogrel, about 39% as often as the typical Puerto Rico prescriber of it (109). Medicare paid $7.56 per fill, versus $10.63 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
Nifedipine is used alone or in combination with other drugs to treat high blood pressure (hypertension).
Compared with Puerto Rico prescribers
Dr. Perez Lopez wrote 38 prescriptions for Nifedipine Er, about 77% as often as the typical Puerto Rico prescriber of it (49). Medicare paid $20.91 per fill, versus $23.90 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 Puerto Rico prescribers
Dr. Perez Lopez wrote 37 prescriptions for Losartan Potassium, about 15% as often as the typical Puerto Rico prescriber of it (247). Medicare paid $10.72 per fill, versus $10.77 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 Puerto Rico prescribers
Dr. Perez Lopez wrote 19 prescriptions for Hydrochlorothiazide, about 17% as often as the typical Puerto Rico prescriber of it (115). Medicare paid $3.04 per fill, versus $5.83 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 beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Puerto Rico prescribers
Dr. Perez Lopez wrote 18 prescriptions for Metoprolol Succinate, about 10% as often as the typical Puerto Rico prescriber of it (176). Medicare paid $14.93 per fill, versus $15.32 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
Carvedilol is used to treat high blood pressure and heart failure.
Compared with Puerto Rico prescribers
Dr. Perez Lopez wrote 15 prescriptions for Carvedilol, about 17% as often as the typical Puerto Rico prescriber of it (86). Medicare paid $5.47 per fill, versus $8.48 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
Hydralazine is used with or without other medications to treat high blood pressure.
Compared with Puerto Rico prescribers
Dr. Perez Lopez wrote 13 prescriptions for Hydralazine Hcl, about 23% as often as the typical Puerto Rico prescriber of it (58). Medicare paid $20.29 per fill, versus $13.06 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
Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed.
Compared with Puerto Rico prescribers
Dr. Perez Lopez wrote 11 prescriptions for Famotidine, about 5% as often as the typical Puerto Rico prescriber of it (204). Medicare paid $7.16 per fill, versus $7.25 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
Levetiracetam is used to treat seizures (epilepsy).
Compared with Puerto Rico prescribers
Dr. Perez Lopez wrote 11 prescriptions for Levetiracetam, about 25% as often as the typical Puerto Rico prescriber of it (44). Medicare paid $26.56 per fill, versus $23.38 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. Perez Lopez’s prescriptions
What does Dr. Perez Lopez prescribe most?
In 2024 Medicare Part D data, Dr. Perez Lopez's most prescribed medications were Atorvastatin Calcium (77), Clopidogrel (42) and Nifedipine Er (38).
How does Dr. Perez Lopez's prescribing compare with other Puerto Rico prescribers?
Of the 10 medications with a state comparison, Dr. Perez Lopez prescribes 1 about as often than the typical Puerto Rico prescriber and 9 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Perez Lopez 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 Puerto Rico 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.
