DR. ROBERT N. PIANA M.D.
Prescription History 1629068556
Internal Medicine - Interventional Cardiology in Nashville, TN
What does Dr. Piana prescribe?
In 2024, Dr. Piana wrote 1,737 Medicare prescriptions for 31 medications. The most prescribed was Atorvastatin Calcium, with 193 prescriptions for 53 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. Piana prescribes.
Medications 31 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 Tennessee 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 Tennessee prescribers
Dr. Piana wrote 193 prescriptions for Atorvastatin Calcium, about as often as the typical Tennessee prescriber of it (182). Medicare paid $8.91 per fill, versus $10.30 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
Evolocumab is used along with a proper diet to help lower "bad" cholesterol (LDL) in the blood.
Compared with Tennessee prescribers
Dr. Piana wrote 121 prescriptions for Repatha Sureclick, about 2.6 times as often as the typical Tennessee prescriber of it (47). Medicare paid $885.76 per fill, versus $822.41 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
Lisinopril is used to treat high blood pressure.
Compared with Tennessee prescribers
Dr. Piana wrote 103 prescriptions for Lisinopril, about 83% as often as the typical Tennessee prescriber of it (124). Medicare paid $5.51 per fill, versus $5.99 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 Tennessee prescribers
Dr. Piana wrote 102 prescriptions for Metoprolol Succinate, about as often as the typical Tennessee prescriber of it (96). Medicare paid $11.29 per fill, versus $13.51 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 Tennessee prescribers
Dr. Piana wrote 93 prescriptions for Clopidogrel, about 1.3 times as often as the typical Tennessee prescriber of it (70). Medicare paid $10.26 per fill, versus $10.22 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Tennessee prescribers
Dr. Piana wrote 86 prescriptions for Losartan Potassium, about 75% as often as the typical Tennessee prescriber of it (115). Medicare paid $6.41 per fill, versus $10.09 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 Tennessee prescribers
Dr. Piana wrote 86 prescriptions for Rosuvastatin Calcium, about 69% as often as the typical Tennessee prescriber of it (125). Medicare paid $9.70 per fill, versus $12.52 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 Tennessee prescribers
Dr. Piana wrote 85 prescriptions for Eliquis, about 88% as often as the typical Tennessee prescriber of it (97). Medicare paid $1,511.53 per fill, versus $804.23 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 Tennessee prescribers
Dr. Piana wrote 81 prescriptions for Carvedilol, about as often as the typical Tennessee prescriber of it (77). Medicare paid $7.53 per fill, versus $7.68 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 Tennessee prescribers
Dr. Piana wrote 77 prescriptions for Amlodipine Besylate, about half as often as the typical Tennessee prescriber of it (149). Medicare paid $8.38 per fill, versus $5.21 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
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 Tennessee prescribers
Dr. Piana wrote 66 prescriptions for Furosemide, about 68% as often as the typical Tennessee prescriber of it (98). Medicare paid $5.58 per fill, versus $4.66 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 Tennessee prescribers
Dr. Piana wrote 63 prescriptions for Nitroglycerin, about 1.8 times as often as the typical Tennessee prescriber of it (35). Medicare paid $8.98 per fill, versus $12.55 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 Tennessee prescribers
Dr. Piana wrote 57 prescriptions for Hydrochlorothiazide, about 74% as often as the typical Tennessee prescriber of it (77). Medicare paid $2.67 per fill, versus $3.96 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Tennessee prescribers
Dr. Piana wrote 57 prescriptions for Metoprolol Tartrate, about 67% as often as the typical Tennessee prescriber of it (85). Medicare paid $4.99 per fill, versus $5.88 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 Tennessee prescribers
Dr. Piana wrote 51 prescriptions for Isosorbide Mononitrate Er, about as often as the typical Tennessee prescriber of it (48). Medicare paid $15.14 per fill, versus $11.72 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 product is used to treat certain types of heart failure.
Compared with Tennessee prescribers
Dr. Piana wrote 47 prescriptions for Entresto, about 81% as often as the typical Tennessee prescriber of it (58). Medicare paid $1,537.13 per fill, versus $997.68 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 Tennessee prescribers
Dr. Piana wrote 43 prescriptions for Spironolactone, about 84% as often as the typical Tennessee prescriber of it (51). Medicare paid $9.66 per fill, versus $8.83 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
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with Tennessee prescribers
Dr. Piana wrote 42 prescriptions for Ezetimibe, about 82% as often as the typical Tennessee prescriber of it (51). Medicare paid $16.63 per fill, versus $25.58 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 Tennessee prescribers
Dr. Piana wrote 37 prescriptions for Potassium Chloride, about half as often as the typical Tennessee prescriber of it (81). Medicare paid $24.79 per fill, versus $17.21 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
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 Tennessee prescribers
Dr. Piana wrote 36 prescriptions for Xarelto, about 79% as often as the typical Tennessee prescriber of it (46). Medicare paid $1,063.80 per fill, versus $864.88 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 Tennessee prescribers
Dr. Piana wrote 34 prescriptions for Pravastatin Sodium, about 60% as often as the typical Tennessee prescriber of it (56). Medicare paid $12.31 per fill, versus $14.04 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 Tennessee prescribers
Dr. Piana wrote 27 prescriptions for Warfarin Sodium, about 74% as often as the typical Tennessee prescriber of it (36). Medicare paid $19.83 per fill, versus $8.09 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 Tennessee prescribers
Dr. Piana wrote 25 prescriptions for Chlorthalidone, about 82% as often as the typical Tennessee prescriber of it (31). Medicare paid $9.08 per fill, versus $17.50 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
Ranolazine is used to treat a certain type of chest pain (chronic angina).
Compared with Tennessee prescribers
Dr. Piana wrote 22 prescriptions for Ranolazine Er, about half as often as the typical Tennessee prescriber of it (39). Medicare paid $98.77 per fill, versus $104.09 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 Tennessee prescribers
Dr. Piana wrote 18 prescriptions for Nifedipine Er, about half as often as the typical Tennessee prescriber of it (31). Medicare paid $17.78 per fill, versus $25.24 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Tennessee prescribers
Dr. Piana wrote 17 prescriptions for Atenolol, about half as often as the typical Tennessee prescriber of it (39). Medicare paid $11.28 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
Prasugrel is used with aspirin by patients with heart disease (recent heart attack, unstable angina) who undergo a certain heart procedure (angioplasty).
Compared with Tennessee prescribers
Dr. Piana wrote 17 prescriptions for Prasugrel Hcl, about half as often as the typical Tennessee prescriber of it (29). Medicare paid $39.08 per fill, versus $91.58 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 Tennessee prescribers
Dr. Piana wrote 16 prescriptions for Jardiance, about 30% as often as the typical Tennessee prescriber of it (53). Medicare paid $1,473.45 per fill, versus $973.79 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
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 Tennessee prescribers
Dr. Piana wrote 12 prescriptions for Bumetanide, about 35% as often as the typical Tennessee prescriber of it (35). Medicare paid $49.76 per fill, versus $29.62 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 Tennessee prescribers
Dr. Piana wrote 12 prescriptions for Diltiazem 24hr Er (Cd), about 35% as often as the typical Tennessee prescriber of it (35). Medicare paid $30.32 per fill, versus $27.25 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 Tennessee prescribers
Dr. Piana wrote 11 prescriptions for Prednisone, about 20% as often as the typical Tennessee prescriber of it (54). Medicare paid $1.02 per fill, versus $4.53 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. Piana’s prescriptions
What does Dr. Piana prescribe most?
In 2024 Medicare Part D data, Dr. Piana's most prescribed medications were Atorvastatin Calcium (193), Repatha Sureclick (121) and Lisinopril (103).
How does Dr. Piana's prescribing compare with other Tennessee prescribers?
Of the 31 medications with a state comparison, Dr. Piana prescribes 3 more often than the typical Tennessee prescriber, 11 about as often and 17 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Piana 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 Tennessee 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.
