ZACHARY MICHAEL DOWDY MD
Prescription History 1982970646
Internal Medicine - Cardiovascular Disease in New Orleans, LA
What does Dr. Dowdy prescribe?
In 2024, Dr. Dowdy wrote 4,683 Medicare prescriptions for 42 medications. The most prescribed was Metoprolol Succinate, with 780 prescriptions for 261 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. Dowdy prescribes.
Medications 42 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 Louisiana prescribers.
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 Louisiana prescribers
Dr. Dowdy wrote 780 prescriptions for Metoprolol Succinate, about 6.1 times as often as the typical Louisiana prescriber of it (129). Medicare paid $13.92 per fill, versus $12.02 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
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 Louisiana prescribers
Dr. Dowdy wrote 558 prescriptions for Eliquis, about 5.3 times as often as the typical Louisiana prescriber of it (104). Medicare paid $1,047.44 per fill, versus $758.12 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 Louisiana prescribers
Dr. Dowdy wrote 390 prescriptions for Amlodipine Besylate, about 2.2 times as often as the typical Louisiana prescriber of it (177). Medicare paid $4.88 per fill, versus $5.05 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
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 Louisiana prescribers
Dr. Dowdy wrote 355 prescriptions for Atorvastatin Calcium, about 1.8 times as often as the typical Louisiana prescriber of it (198). Medicare paid $10.59 per fill, versus $8.79 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 Louisiana prescribers
Dr. Dowdy wrote 339 prescriptions for Rosuvastatin Calcium, about 2.3 times as often as the typical Louisiana prescriber of it (146). Medicare paid $12.62 per fill, versus $11.71 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
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 Louisiana prescribers
Dr. Dowdy wrote 207 prescriptions for Clopidogrel, about 2.3 times as often as the typical Louisiana prescriber of it (88). Medicare paid $9.77 per fill, versus $9.34 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 Louisiana prescribers
Dr. Dowdy wrote 196 prescriptions for Furosemide, about 2 times as often as the typical Louisiana prescriber of it (96). Medicare paid $4.16 per fill, versus $4.24 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 Louisiana prescribers
Dr. Dowdy wrote 178 prescriptions for Losartan Potassium, about 1.5 times as often as the typical Louisiana prescriber of it (119). Medicare paid $13.46 per fill, versus $8.96 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 Louisiana prescribers
Dr. Dowdy wrote 174 prescriptions for Carvedilol, about 2.2 times as often as the typical Louisiana prescriber of it (78). Medicare paid $8.50 per fill, versus $7.29 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
Spironolactone is used to treat high blood pressure and heart failure.
Compared with Louisiana prescribers
Dr. Dowdy wrote 154 prescriptions for Spironolactone, about 3.2 times as often as the typical Louisiana prescriber of it (48). Medicare paid $5.82 per fill, versus $7.47 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
Lisinopril is used to treat high blood pressure.
Compared with Louisiana prescribers
Dr. Dowdy wrote 140 prescriptions for Lisinopril, about 1.4 times as often as the typical Louisiana prescriber of it (103). Medicare paid $4.45 per fill, versus $5.84 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
Evolocumab is used along with a proper diet to help lower "bad" cholesterol (LDL) in the blood.
Compared with Louisiana prescribers
Dr. Dowdy wrote 100 prescriptions for Repatha Sureclick, about 1.7 times as often as the typical Louisiana prescriber of it (58). Medicare paid $901.29 per fill, versus $738.29 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
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 Louisiana prescribers
Dr. Dowdy wrote 96 prescriptions for Xarelto, about 1.7 times as often as the typical Louisiana prescriber of it (56). Medicare paid $1,079.35 per fill, versus $793.70 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Louisiana prescribers
Dr. Dowdy wrote 94 prescriptions for Metoprolol Tartrate, about 1.4 times as often as the typical Louisiana prescriber of it (69). Medicare paid $4.21 per fill, versus $5.86 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 Louisiana prescribers
Dr. Dowdy wrote 91 prescriptions for Jardiance, about 1.4 times as often as the typical Louisiana prescriber of it (66). Medicare paid $1,230.62 per fill, versus $922.05 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
This medication is used to relieve chest pain (angina) in people that have a certain heart condition (coronary artery disease).
Compared with Louisiana prescribers
Dr. Dowdy wrote 80 prescriptions for Nitroglycerin, about 2.1 times as often as the typical Louisiana prescriber of it (38). Medicare paid $9.27 per fill, versus $14.06 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
This product is used to treat certain types of heart failure.
Compared with Louisiana prescribers
Dr. Dowdy wrote 56 prescriptions for Entresto, about 81% as often as the typical Louisiana prescriber of it (69). Medicare paid $1,191.60 per fill, versus $889.02 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
Isosorbide mononitrate is used to prevent chest pain (angina) in patients with a certain heart condition (coronary artery disease).
Compared with Louisiana prescribers
Dr. Dowdy wrote 56 prescriptions for Isosorbide Mononitrate Er, about as often as the typical Louisiana prescriber of it (53). Medicare paid $14.53 per fill, versus $10.25 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
This medication is used to treat certain types of serious (possibly fatal) irregular heartbeat (such as sustained ventricular tachycardia and paroxysmal supraventricular tachycardia).
Compared with Louisiana prescribers
Dr. Dowdy wrote 51 prescriptions for Flecainide Acetate, about as often as the typical Louisiana prescriber of it (49). Medicare paid $30.63 per fill, versus $33.89 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 Louisiana prescribers
Dr. Dowdy wrote 47 prescriptions for Diltiazem 24hr Er (Cd), about 1.2 times as often as the typical Louisiana prescriber of it (39). Medicare paid $20.87 per fill, versus $21.49 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
Doxazosin is used alone or with other drugs to treat high blood pressure (hypertension).
Compared with Louisiana prescribers
Dr. Dowdy wrote 47 prescriptions for Doxazosin Mesylate, about 1.2 times as often as the typical Louisiana prescriber of it (38). Medicare paid $13.77 per fill, versus $12.76 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
Pravastatin 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 Louisiana prescribers
Dr. Dowdy wrote 47 prescriptions for Pravastatin Sodium, about 63% as often as the typical Louisiana prescriber of it (75). Medicare paid $20.57 per fill, versus $12.41 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 Louisiana prescribers
Dr. Dowdy wrote 44 prescriptions for Ezetimibe, about half as often as the typical Louisiana prescriber of it (74). Medicare paid $13.79 per fill, versus $17.76 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
This medication is used to treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body.
Compared with Louisiana prescribers
Dr. Dowdy wrote 43 prescriptions for Warfarin Sodium, about as often as the typical Louisiana prescriber of it (39). Medicare paid $13.17 per fill, versus $7.82 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
This medication is used to treat high blood pressure.
Compared with Louisiana prescribers
Dr. Dowdy wrote 32 prescriptions for Hydrochlorothiazide, about 36% as often as the typical Louisiana prescriber of it (89). Medicare paid $6.26 per fill, versus $3.79 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 Louisiana prescribers
Dr. Dowdy wrote 31 prescriptions for Chlorthalidone, about as often as the typical Louisiana prescriber of it (30). Medicare paid $15.61 per fill, versus $14.67 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 Louisiana prescribers
Dr. Dowdy wrote 30 prescriptions for Hydralazine Hcl, about 61% as often as the typical Louisiana prescriber of it (49). Medicare paid $36.74 per fill, versus $11.91 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
Valsartan is used to treat high blood pressure and heart failure.
Compared with Louisiana prescribers
Dr. Dowdy wrote 26 prescriptions for Valsartan, about half as often as the typical Louisiana prescriber of it (51). Medicare paid $13.44 per fill, versus $25.13 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
Alirocumab is used by people who have blockage in the heart blood vessels to reduce the risk of heart attack, stroke, and certain types of chest pain that require treatment in a hospital.
Compared with Louisiana prescribers
Dr. Dowdy wrote 25 prescriptions for Praluent Pen, about 89% as often as the typical Louisiana prescriber of it (28). Medicare paid $834.31 per fill, versus $638.14 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 Louisiana prescribers
Dr. Dowdy wrote 23 prescriptions for Bumetanide, about 70% as often as the typical Louisiana prescriber of it (33). Medicare paid $11.01 per fill, versus $26.30 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Louisiana prescribers
Dr. Dowdy wrote 21 prescriptions for Pantoprazole Sodium, about 18% as often as the typical Louisiana prescriber of it (118). Medicare paid $8.72 per fill, versus $11.00 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
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 Louisiana prescribers
Dr. Dowdy wrote 21 prescriptions for Simvastatin, about 34% as often as the typical Louisiana prescriber of it (61). Medicare paid $5.69 per fill, versus $7.67 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 drug is used to treat high blood pressure.
Compared with Louisiana prescribers
Dr. Dowdy wrote 20 prescriptions for Losartan-Hydrochlorothiazide, about half as often as the typical Louisiana prescriber of it (42). Medicare paid $23.09 per fill, versus $12.02 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 mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Louisiana prescribers
Dr. Dowdy wrote 20 prescriptions for Potassium Chloride, about 24% as often as the typical Louisiana prescriber of it (85). Medicare paid $25.21 per fill, versus $16.08 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
This medication is used to treat certain types of serious (possibly fatal) irregular heartbeat (such as recurrent ventricular fibrillation/tachycardia).
Compared with Louisiana prescribers
Dr. Dowdy wrote 17 prescriptions for Amiodarone Hcl, about 34% as often as the typical Louisiana prescriber of it (50). Medicare paid $15.18 per fill, versus $19.21 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
This medication is used to prevent or treat gout attacks (flares).
Compared with Louisiana prescribers
Dr. Dowdy wrote 17 prescriptions for Colchicine, about 67% as often as the typical Louisiana prescriber of it (25). Medicare paid $41.49 per fill, versus $41.82 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
Torsemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Louisiana prescribers
Dr. Dowdy wrote 15 prescriptions for Torsemide, about 37% as often as the typical Louisiana prescriber of it (40). Medicare paid $17.38 per fill, versus $14.82 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
Ranolazine is used to treat a certain type of chest pain (chronic angina).
Compared with Louisiana prescribers
Dr. Dowdy wrote 14 prescriptions for Ranolazine Er, about 27% as often as the typical Louisiana prescriber of it (51). Medicare paid $97.56 per fill, versus $65.76 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
Benazepril is used to treat high blood pressure (hypertension).
Compared with Louisiana prescribers
Dr. Dowdy wrote 13 prescriptions for Benazepril Hcl, about 40% as often as the typical Louisiana prescriber of it (32). Medicare paid $11.06 per fill, versus $9.18 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 Louisiana prescribers
Dr. Dowdy wrote 13 prescriptions for Diltiazem 24hr Er, about half as often as the typical Louisiana prescriber of it (22). Medicare paid $33.43 per fill, versus $28.47 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
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Louisiana prescribers
Fewer than five Louisiana prescribers wrote this medication, so there is no state comparison.
What it is used for
This medication is used to treat a certain type of heart failure (transthyretin-mediated amyloidosis).
Compared with Louisiana prescribers
Dr. Dowdy wrote 11 prescriptions for Vyndamax, about 28% as often as the typical Louisiana prescriber of it (40). Medicare paid $22,108.97 per fill, versus $23,316.73 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. Dowdy’s prescriptions
What does Dr. Dowdy prescribe most?
In 2024 Medicare Part D data, Dr. Dowdy's most prescribed medications were Metoprolol Succinate (780), Eliquis (558) and Amlodipine Besylate (390).
How does Dr. Dowdy's prescribing compare with other Louisiana prescribers?
Of the 41 medications with a state comparison, Dr. Dowdy prescribes 16 more often than the typical Louisiana prescriber, 8 about as often and 17 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Dowdy 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 Louisiana 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.
