MARCO MERCADER MD
Prescription History 1275629321
Internal Medicine - Clinical Cardiac Electrophysiology in Washington, DC
What does Dr. Mercader prescribe?
In 2024, Dr. Mercader wrote 1,363 Medicare prescriptions for 26 medications. The most prescribed was Eliquis (apixaban), with 211 prescriptions for 54 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. Mercader prescribes.
Medications 26 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 District of Columbia prescribers.
What it is used for
Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery.
Compared with District of Columbia prescribers
Dr. Mercader wrote 211 prescriptions for Eliquis, about 4.2 times as often as the typical District of Columbia prescriber of it (50). Medicare paid $1,062.78 per fill, versus $972.60 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 District of Columbia prescribers
Dr. Mercader wrote 193 prescriptions for Metoprolol Succinate, about 3.3 times as often as the typical District of Columbia prescriber of it (58). Medicare paid $12.05 per fill, versus $14.94 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
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 District of Columbia prescribers
Dr. Mercader wrote 133 prescriptions for Atorvastatin Calcium, about 1.2 times as often as the typical District of Columbia prescriber of it (113). Medicare paid $11.19 per fill, versus $10.06 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
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with District of Columbia prescribers
Dr. Mercader wrote 92 prescriptions for Jardiance, about 2.1 times as often as the typical District of Columbia prescriber of it (44). Medicare paid $806.79 per fill, versus $1,013.63 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
Lisinopril is used to treat high blood pressure.
Compared with District of Columbia prescribers
Dr. Mercader wrote 89 prescriptions for Lisinopril, about 1.6 times as often as the typical District of Columbia prescriber of it (56). Medicare paid $8.17 per fill, versus $7.56 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
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with District of Columbia prescribers
Dr. Mercader wrote 84 prescriptions for Furosemide, about 1.7 times as often as the typical District of Columbia prescriber of it (48). Medicare paid $3.82 per fill, versus $5.93 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 District of Columbia prescribers
Dr. Mercader wrote 71 prescriptions for Amlodipine Besylate, about 74% as often as the typical District of Columbia prescriber of it (96). Medicare paid $5.26 per fill, versus $6.80 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 product is used to treat certain types of heart failure.
Compared with District of Columbia prescribers
Dr. Mercader wrote 60 prescriptions for Entresto, about 1.3 times as often as the typical District of Columbia prescriber of it (45). Medicare paid $1,192.71 per fill, versus $1,217.20 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with District of Columbia prescribers
Dr. Mercader wrote 54 prescriptions for Losartan Potassium, about 81% as often as the typical District of Columbia prescriber of it (67). Medicare paid $5.76 per fill, versus $9.32 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
Nifedipine is used alone or in combination with other drugs to treat high blood pressure (hypertension).
Compared with District of Columbia prescribers
Dr. Mercader wrote 43 prescriptions for Nifedipine Er, about 1.4 times as often as the typical District of Columbia prescriber of it (32). Medicare paid $15.35 per fill, versus $27.60 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
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery.
Compared with District of Columbia prescribers
Dr. Mercader wrote 42 prescriptions for Xarelto, about 1.2 times as often as the typical District of Columbia prescriber of it (35). Medicare paid $1,222.50 per fill, versus $1,011.40 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with District of Columbia prescribers
Dr. Mercader wrote 30 prescriptions for Metoprolol Tartrate, about 79% as often as the typical District of Columbia prescriber of it (38). Medicare paid $6.69 per fill, versus $7.72 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 District of Columbia prescribers
Dr. Mercader wrote 26 prescriptions for Hydrochlorothiazide, about half as often as the typical District of Columbia prescriber of it (51). Medicare paid $1.71 per fill, versus $4.71 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 serious (possibly fatal) irregular heartbeat (such as recurrent ventricular fibrillation/tachycardia).
Compared with District of Columbia prescribers
Dr. Mercader wrote 25 prescriptions for Amiodarone Hcl, about 88% as often as the typical District of Columbia prescriber of it (28). Medicare paid $18.76 per fill, versus $31.76 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
Chlorthalidone is used to treat high blood pressure (hypertension).
Compared with District of Columbia prescribers
Dr. Mercader wrote 25 prescriptions for Chlorthalidone, about as often as the typical District of Columbia prescriber of it (27). Medicare paid $22.26 per fill, versus $20.22 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 District of Columbia prescribers
Dr. Mercader wrote 25 prescriptions for Rosuvastatin Calcium, about 37% as often as the typical District of Columbia prescriber of it (67). Medicare paid $33.87 per fill, versus $18.81 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with District of Columbia prescribers
Dr. Mercader wrote 23 prescriptions for Rybelsus, about as often as the typical District of Columbia prescriber of it (21). Medicare paid $827.18 per fill, versus $1,501.05 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
Carvedilol is used to treat high blood pressure and heart failure.
Compared with District of Columbia prescribers
Dr. Mercader wrote 22 prescriptions for Carvedilol, about half as often as the typical District of Columbia prescriber of it (46). Medicare paid $14.53 per fill, versus $8.70 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 District of Columbia prescribers
Dr. Mercader wrote 20 prescriptions for Clopidogrel, about half as often as the typical District of Columbia prescriber of it (33). Medicare paid $13.68 per fill, versus $11.50 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 if you have had certain types of irregular heartbeat (paroxysmal or persistent atrial fibrillation) in the past but now have a normal heart rhythm.
Compared with District of Columbia prescribers
Dr. Mercader wrote 19 prescriptions for Multaq, about as often as the typical District of Columbia prescriber of it (21). Medicare paid $1,223.23 per fill, versus $1,337.10 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
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with District of Columbia prescribers
Dr. Mercader wrote 16 prescriptions for Diltiazem 24hr Er (Cd), about 68% as often as the typical District of Columbia prescriber of it (23). Medicare paid $30.57 per fill, versus $34.82 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
Spironolactone is used to treat high blood pressure and heart failure.
Compared with District of Columbia prescribers
Dr. Mercader wrote 15 prescriptions for Spironolactone, about 42% as often as the typical District of Columbia prescriber of it (36). Medicare paid $6.32 per fill, versus $9.00 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
Bumetanide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with District of Columbia prescribers
Dr. Mercader wrote 12 prescriptions for Bumetanide, about 63% as often as the typical District of Columbia prescriber of it (19). Medicare paid $35.72 per fill, versus $38.95 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
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with District of Columbia prescribers
Dr. Mercader wrote 11 prescriptions for Albuterol Sulfate Hfa, about 21% as often as the typical District of Columbia prescriber of it (52). Medicare paid $18.86 per fill, versus $26.08 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
Digoxin is used to treat heart failure, usually along with other medications.
Compared with District of Columbia prescribers
Dr. Mercader wrote 11 prescriptions for Digoxin, about half as often as the typical District of Columbia prescriber of it (25). Medicare paid $3.56 per fill, versus $31.21 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
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with District of Columbia prescribers
Dr. Mercader wrote 11 prescriptions for Ezetimibe, about 26% as often as the typical District of Columbia prescriber of it (43). Medicare paid $37.12 per fill, versus $33.07 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. Mercader’s prescriptions
What does Dr. Mercader prescribe most?
In 2024 Medicare Part D data, Dr. Mercader's most prescribed medications were Eliquis (211), Metoprolol Succinate (193) and Atorvastatin Calcium (133).
How does Dr. Mercader's prescribing compare with other District of Columbia prescribers?
Of the 26 medications with a state comparison, Dr. Mercader prescribes 7 more often than the typical District of Columbia prescriber, 8 about as often and 11 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Mercader 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 District of Columbia 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.
