GABRIEL VARGAS SANTIAGO MD
Prescription History 1164045027
General Practice in Bayamon, PR
What does Dr. Vargas Santiago prescribe?
In 2024, Dr. Vargas Santiago wrote 40 Medicare prescriptions for 2 medications. The most prescribed was Famotidine, with 27 prescriptions for 27 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. Vargas Santiago prescribes.
Medications 2 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
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. Vargas Santiago wrote 27 prescriptions for Famotidine, about 13% as often as the typical Puerto Rico prescriber of it (204). Medicare paid $2.50 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
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 Puerto Rico prescribers
Dr. Vargas Santiago wrote 13 prescriptions for Prednisone, about 21% as often as the typical Puerto Rico prescriber of it (62). Medicare paid $2.32 per fill, versus $5.11 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. Vargas Santiago’s prescriptions
What does Dr. Vargas Santiago prescribe most?
In 2024 Medicare Part D data, Dr. Vargas Santiago's most prescribed medications were Famotidine (27) and Prednisone (13).
How does Dr. Vargas Santiago's prescribing compare with other Puerto Rico prescribers?
Of the 2 medications with a state comparison, Dr. Vargas Santiago prescribes 2 less often than the typical Puerto Rico prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Vargas Santiago 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.
