DAVID CHANG ISHIZAWAR M.D.
Prescription History 1326235607
Internal Medicine - Advanced Heart Failure and Transplant Cardiology in Raleigh, NC
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DAVID CHANG ISHIZAWAR M.D., an active Advanced Heart Failure and Transplant Cardiology specialist practicing in Raleigh, NC. Our medical registry currently tracks 28 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 1,880 documented patient claims. Among these therapy options, the most frequently utilized medication is Spironolactone, which accounts for 278 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.
| Medication | Prescriptions (2024)Rx (2024) | Avg Cost per FillCost / Fill | Vs. Other NC PrescribersVs. NC Avg |
|---|---|---|---|
| Spironolactone | 278 | $7.93 | ▲ More than typical |
About Spironolactone: Spironolactone is used to treat high blood pressure and heart failure. Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. It is also used to treat swelling (edema) caused by certain conditions (such as heart failure, liver disease) by removing excess fluid and improving symptoms such as breathing problems. This medication is also used to treat conditions in which the body is making too much of a natural substance (aldosterone). Spironolactone is known as a "water pill" (potassium-sparing diuretic). A potassium sparing diuretic that acts by antagonism of aldosterone in the distal renal tubules. It is used mainly in the treatment of refractory edema in patients with congestive heart failure, nephrotic syndrome, or hepatic cirrhosis. Its effects on the endocrine system are utilized in the treatments of hirsutism and acne but they can lead to adverse effects. (From Martindale, The Extra Pharmacopoeia, 30th ed, p827) In 2024, this provider wrote 278 Medicare prescriptions for Spironolactone, about 5.7 times the volume of the typical North Carolina prescriber of this medication (48.9). Medicare paid an average of $7.93 per fill, versus $7.79 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 669.9 30-Day Fills standardized to 30-day supplies 20,010 Days of Medication total across all patients in 2024 | |||
| JardianceEmpagliflozin | 275 | $1,047.12 | ▲ More than typical |
About Jardiance: Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes. Show more ▾ Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Empagliflozin is also used in patients with type 2 diabetes and heart disease to lower the risk of death from heart attack or stroke. Empagliflozin works by increasing the removal of sugar by your kidneys. Empagliflozin is also used to treat heart failure and kidney disease. It helps to lower the risk of death from heart disease and reduces the need of going to a hospital to treat heart failure or kidney disease. It also helps to lower the risk of dialysis in people with kidney disease. Empagliflozin works by increasing the removal of sodium by your kidneys. In 2024, this provider wrote 275 Medicare prescriptions for Jardiance, about 4.9 times the volume of the typical North Carolina prescriber of this medication (55.8). Medicare paid an average of $1,047.12 per fill, versus $973.00 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 501.7 30-Day Fills standardized to 30-day supplies 15,020 Days of Medication total across all patients in 2024 | |||
| Metoprolol Succinate | 185 | $23.79 | ▲ More than typical |
About Metoprolol Succinate: This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure. Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This drug works by blocking the action of certain natural chemicals in your body (such as epinephrine) that affect the heart and blood vessels. This lowers heart rate, blood pressure, and strain on the heart. A selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS. In 2024, this provider wrote 185 Medicare prescriptions for Metoprolol Succinate, about 1.7 times the volume of the typical North Carolina prescriber of this medication (108.4). Medicare paid an average of $23.79 per fill, versus $12.24 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 453 30-Day Fills standardized to 30-day supplies 13,531 Days of Medication total across all patients in 2024 | |||
| EntrestoSacubitril/Valsartan | 181 | $1,023.92 | ▲ More than typical |
About Entresto: This product is used to treat certain types of heart failure. Show more ▾ It may help you live longer and lower your chance of having to go to the hospital for heart failure. This product contains 2 medications: sacubitril and valsartan. Sacubitril belongs to a class of drugs called neprilysin inhibitors and valsartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). They work by relaxing blood vessels so that blood can flow more easily, which makes it easier for your heart to pump blood to your body. An angiotensin II receptor antagonist. In 2024, this provider wrote 181 Medicare prescriptions for Entresto, about 3.2 times the volume of the typical North Carolina prescriber of this medication (56.3). Medicare paid an average of $1,023.92 per fill, versus $967.10 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 292.1 30-Day Fills standardized to 30-day supplies 8,738 Days of Medication total across all patients in 2024 | |||
| Torsemide | 140 | $50.68 | ▲ More than typical |
About Torsemide: Torsemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease. Show more ▾ This can lessen symptoms such as shortness of breath and swelling in your arms, legs, and abdomen. This drug is also used to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Torsemide is a "water pill" (diuretic) that causes you to make more urine. This helps your body get rid of extra water and salt. A pyridine and sulfonamide derivative that acts as a sodium-potassium chloride symporter inhibitor (loop diuretic). It is used for the treatment of EDEMA associated with CONGESTIVE HEART FAILURE; CHRONIC RENAL INSUFFICIENCY; and LIVER DISEASES. It is also used for the management of HYPERTENSION. In 2024, this provider wrote 140 Medicare prescriptions for Torsemide, about 3.7 times the volume of the typical North Carolina prescriber of this medication (37.9). Medicare paid an average of $50.68 per fill, versus $19.94 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 312.9 30-Day Fills standardized to 30-day supplies 9,262 Days of Medication total across all patients in 2024 | |||
| FarxigaDapagliflozin Propanediol | 112 | $963.41 | ▲ More than typical |
About Farxiga: Dapagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes. Show more ▾ Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Proper control of diabetes may also lessen your risk of a heart attack or stroke. This medication is also used in people with type 2 diabetes and heart disease to lower the risk of going to the hospital for heart failure. Dapagliflozin works by increasing the removal of sugar by your kidneys. Dapagliflozin is also used to treat kidney disease and heart failure. It helps to lower the risk of death from heart disease and reduces the need of going to a doctor or hospital to treat heart failure. Dapagliflozin works by increasing the removal of sodium by your kidneys. In 2024, this provider wrote 112 Medicare prescriptions for Farxiga, about 2.6 times the volume of the typical North Carolina prescriber of this medication (42.7). Medicare paid an average of $963.41 per fill, versus $898.18 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 195 30-Day Fills standardized to 30-day supplies 5,850 Days of Medication total across all patients in 2024 | |||
| Furosemide | 108 | $4.93 | ▲ More than typical |
About Furosemide: Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease. Show more ▾ This can lessen symptoms such as shortness of breath and swelling in your arms, legs, and abdomen. This drug is also used to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Furosemide is a "water pill" (diuretic) that causes you to make more urine. This helps your body get rid of extra water and salt. A benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY. In 2024, this provider wrote 108 Medicare prescriptions for Furosemide, about 1.3 times the volume of the typical North Carolina prescriber of this medication (82.5). Medicare paid an average of $4.93 per fill, versus $4.73 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 236.5 30-Day Fills standardized to 30-day supplies 7,092 Days of Medication total across all patients in 2024 | |||
| Losartan Potassium | 88 | $6.80▼ below NC avg | ≈ Typical |
About Losartan Potassium: Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes. Show more ▾ It is also used to lower the risk of strokes in patients with high blood pressure and an enlarged heart. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Losartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). It works by relaxing blood vessels so that blood can flow more easily. An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II. In 2024, this provider wrote 88 Medicare prescriptions for Losartan Potassium, about 81% of the volume of the typical North Carolina prescriber of this medication (108.2). Medicare paid an average of $6.80 per fill, versus $9.16 statewide. How often this provider prescribes it This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 200.8 30-Day Fills standardized to 30-day supplies 6,025 Days of Medication total across all patients in 2024 | |||
| Carvedilol | 83 | $11.43 | ▲ More than typical |
About Carvedilol: Carvedilol is used to treat high blood pressure and heart failure. Show more ▾ It is also used after a heart attack to improve the chance of survival if your heart is not pumping well. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This drug works by blocking the action of certain natural substances in your body, such as epinephrine, on the heart and blood vessels. This effect lowers your heart rate, blood pressure, and strain on your heart. Carvedilol belongs to a class of drugs known as alpha and beta blockers. A carbazole and propanol derivative that acts as a non-cardioselective beta blocker and vasodilator. It has blocking activity for ALPHA 1 ADRENERGIC RECEPTORS and, at higher doses, may function as a blocker of CALCIUM CHANNELS; it also has antioxidant properties. Carvedilol is used in the treatment of HYPERTENSION; ANGINA PECTORIS; and HEART FAILURE. It can also reduce the risk of death following MYOCARDIAL INFARCTION. In 2024, this provider wrote 83 Medicare prescriptions for Carvedilol, about 1.3 times the volume of the typical North Carolina prescriber of this medication (63). Medicare paid an average of $11.43 per fill, versus $7.93 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 160.7 30-Day Fills standardized to 30-day supplies 4,790 Days of Medication total across all patients in 2024 | |||
| Sildenafil Citrate | 58 | $465.65 | ▲ More than typical |
About Sildenafil Citrate: Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). Show more ▾ In combination with sexual stimulation, sildenafil works by increasing blood flow to the penis to help a person get and keep an erection. This drug does not protect against sexually transmitted diseases (such as HIV, hepatitis B, gonorrhea, syphilis). To decrease your risk of infection, always use an effective barrier method (latex or polyurethane condom/dental dams) during all sexual activity. Consult your doctor or pharmacist for more details. A PHOSPHODIESTERASE TYPE-5 INHIBITOR; VASODILATOR AGENT and UROLOGICAL AGENT that is used in the treatment of ERECTILE DYSFUNCTION and PRIMARY PULMONARY HYPERTENSION. In 2024, this provider wrote 58 Medicare prescriptions for Sildenafil Citrate, about 3.1 times the volume of the typical North Carolina prescriber of this medication (19). Medicare paid an average of $465.65 per fill, versus $67.43 statewide. How often this provider prescribes it This provider prescribes this medication more often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 116 30-Day Fills standardized to 30-day supplies 3,480 Days of Medication total across all patients in 2024 | |||
| Potassium Chloride | 45 | $28.55 | ▼ Less than typical |
About Potassium Chloride: This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood. Show more ▾ A normal level of potassium in the blood is important. Potassium helps your cells, kidneys, heart, muscles, and nerves work properly. Most people get enough potassium by eating a well-balanced diet. Some conditions that can lower your body's potassium level include severe prolonged diarrhea and vomiting, hormone problems such as hyperaldosteronism, or treatment with "water pills"/diuretics. A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA. In 2024, this provider wrote 45 Medicare prescriptions for Potassium Chloride, about 70% of the volume of the typical North Carolina prescriber of this medication (64.1). Medicare paid an average of $28.55 per fill, versus $17.71 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 91.3 30-Day Fills standardized to 30-day supplies 2,740 Days of Medication total across all patients in 2024 | |||
| OpsumitMacitentan | 42 | $12,534.17▼ below NC avg | ▼ Less than typical |
About Opsumit: Macitentan is used to treat high blood pressure in the lungs (pulmonary arterial hypertension). Show more ▾ This condition is thought to be caused by increased levels of a certain natural substance (endothelin-1). This medication blocks the effects of endothelin-1, which helps decrease the blood pressure in the lungs, and reduces the risk of worsening of symptoms and hospital stays due to the disease. In 2024, this provider wrote 42 Medicare prescriptions for Opsumit, about 66% of the volume of the typical North Carolina prescriber of this medication (63.6). Medicare paid an average of $12,534.17 per fill, versus $12,691.95 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 42 30-Day Fills standardized to 30-day supplies 1,260 Days of Medication total across all patients in 2024 | |||
| AdempasRiociguat | 39 | $13,958.26 | ≈ Typical |
About Adempas: Riociguat is used to treat high blood pressure in the lungs (pulmonary hypertension). Show more ▾ It can also be used to treat a certain type of high blood pressure in the lungs caused by blood clots (chronic thromboembolic pulmonary hypertension) when surgery has not been fully successful or is impossible. Riociguat works by relaxing and widening the blood vessels in your lungs so blood can flow more easily. Decreasing high blood pressure in the lungs allows your heart and lungs to work better and improves your ability to exercise. Guanylate cyclase stimulator. In 2024, this provider wrote 39 Medicare prescriptions for Adempas, about the same volume as the typical North Carolina prescriber of this medication (39.7). Medicare paid an average of $13,958.26 per fill, versus $13,517.46 statewide. How often this provider prescribes it This provider's prescribing volume for this medication is in line with the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 39 30-Day Fills standardized to 30-day supplies 1,170 Days of Medication total across all patients in 2024 | |||
| UptraviSelexipag | 31 | $21,936.00▼ below NC avg | ▼ Less than typical |
About Uptravi: Selexipag is used to treat high blood pressure in the lungs (pulmonary arterial hypertension-PAH). Show more ▾ It is used to help slow down worsening of PAH and to decrease the chance of needing treatment in a hospital. Selexipag works by making it easier for blood to flow through the arteries in your lungs. This effect helps increase your ability to exercise. Prostacyclin receptor agonist. In 2024, this provider wrote 31 Medicare prescriptions for Uptravi, about 66% of the volume of the typical North Carolina prescriber of this medication (46.7). Medicare paid an average of $21,936.00 per fill, versus $23,926.27 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 31 30-Day Fills standardized to 30-day supplies 916 Days of Medication total across all patients in 2024 | |||
| Ambrisentan | 24 | $5,362.09 | ▼ Less than typical |
About Ambrisentan: Ambrisentan is used to treat high blood pressure in the lungs (pulmonary arterial hypertension). Show more ▾ This condition is thought to be caused by increased levels of a certain natural substance (endothelin-1). This medication blocks the effects of endothelin-1, thereby helping to decrease the blood pressure in the lungs, slow the worsening of symptoms, and improve your ability to exercise. An ET(A) receptor antagonist and antihypertensive agent; studied for use in pulmonary arterial hypertension. In 2024, this provider wrote 24 Medicare prescriptions for Ambrisentan, about half the volume of the typical North Carolina prescriber of this medication (46). Medicare paid an average of $5,362.09 per fill, versus $2,724.73 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 24 30-Day Fills standardized to 30-day supplies 720 Days of Medication total across all patients in 2024 | |||
| Tyvaso DpiTreprostinil | 21 | $24,401.86 | ▼ Less than typical |
About Tyvaso Dpi: This medication is used to treat a type of high blood pressure in the lungs (pulmonary arterial hypertension). Show more ▾ Treprostinil helps to increase your ability to exercise and improves symptoms such as shortness of breath and tiredness. It works by relaxing and widening the blood vessels (arteries) in the lungs and other parts of the body so that blood can flow more easily. This medication belongs to a class of drugs known as vasodilators. In 2024, this provider wrote 21 Medicare prescriptions for Tyvaso Dpi, about half the volume of the typical North Carolina prescriber of this medication (42.2). Medicare paid an average of $24,401.86 per fill, versus $23,893.69 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 21 30-Day Fills standardized to 30-day supplies 588 Days of Medication total across all patients in 2024 | |||
| Isosorbide Mononitrate ErIsosorbide Mononitrate | 20 | $5.77▼ below NC avg | ▼ Less than typical |
About Isosorbide Mononitrate Er: Isosorbide mononitrate is used to prevent chest pain (angina) in patients with a certain heart condition (coronary artery disease). Show more ▾ This medication belongs to a class of drugs known as nitrates. It works by relaxing and widening blood vessels so blood can flow more easily to the heart. This medication will not relieve chest pain once it occurs. Also, it is not intended to be taken just before physical activities (such as exercise or sexual intercourse) to prevent chest pain. Other medications may be prescribed by your doctor for these conditions. Consult your doctor for more details. For prevention of angina pectoris; a Russian drug. In 2024, this provider wrote 20 Medicare prescriptions for Isosorbide Mononitrate Er, about half the volume of the typical North Carolina prescriber of this medication (46.7). Medicare paid an average of $5.77 per fill, versus $11.13 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 34.5 30-Day Fills standardized to 30-day supplies 1,035 Days of Medication total across all patients in 2024 | |||
| Bumetanide | 17 | $35.57 | ▼ Less than typical |
About Bumetanide: Bumetanide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease. Show more ▾ This can lessen symptoms such as shortness of breath and swelling in your arms, legs, and abdomen. Bumetanide is a "water pill" (diuretic) that causes you to make more urine. This helps your body get rid of extra water and salt. A sulfamyl diuretic. In 2024, this provider wrote 17 Medicare prescriptions for Bumetanide, about half the volume of the typical North Carolina prescriber of this medication (30). Medicare paid an average of $35.57 per fill, versus $29.66 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 28.5 30-Day Fills standardized to 30-day supplies 855 Days of Medication total across all patients in 2024 | |||
| Isosorbide Dinitrate | 16 | $45.83▼ below NC avg | ▼ Less than typical |
About Isosorbide Dinitrate: Isosorbide dinitrate is used to prevent chest pain (angina) in patients with a certain heart condition (coronary artery disease). Show more ▾ This medication belongs to a class of drugs known as nitrates. It works by relaxing and widening blood vessels so blood can flow more easily to the heart. This medication will not relieve chest pain once it occurs. It is also not intended to be taken just before physical activities (such as exercise, sexual activity) to prevent chest pain. Other medications may be needed in these situations. Consult your doctor for more details. A vasodilator used in the treatment of ANGINA PECTORIS. Its actions are similar to NITROGLYCERIN but with a slower onset of action. In 2024, this provider wrote 16 Medicare prescriptions for Isosorbide Dinitrate, about 72% of the volume of the typical North Carolina prescriber of this medication (22.1). Medicare paid an average of $45.83 per fill, versus $55.26 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 33 30-Day Fills standardized to 30-day supplies 970 Days of Medication total across all patients in 2024 | |||
| Tadalafil | 16 | $58.93▼ below NC avg | ▼ Less than typical |
About Tadalafil: Tadalafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). Show more ▾ In combination with sexual stimulation, tadalafil works by increasing blood flow to the penis to help a man get and keep an erection. Tadalafil is also used to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). It helps to relieve symptoms of BPH such as difficulty in beginning the flow of urine, weak stream, and the need to urinate often or urgently (including during the middle of the night). Tadalafil is thought to work by relaxing the smooth muscle in the prostate and bladder. This drug does not protect against sexually transmitted diseases (such as HIV, hepatitis B, gonorrhea, syphilis). Practice "safe sex" such as using latex condoms. Consult your doctor or pharmacist for more details. A carboline derivative and PHOSPHODIESTERASE 5 INHIBITOR that is used primarily to treat ERECTILE DYSFUNCTION; BENIGN PROSTATIC HYPERPLASIA and PRIMARY PULMONARY HYPERTENSION. In 2024, this provider wrote 16 Medicare prescriptions for Tadalafil, about 63% of the volume of the typical North Carolina prescriber of this medication (25.4). Medicare paid an average of $58.93 per fill, versus $264.97 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 20 30-Day Fills standardized to 30-day supplies 600 Days of Medication total across all patients in 2024 | |||
| VyndamaxTafamidis | 16 | $21,807.57▼ below NC avg | ▼ Less than typical |
About Vyndamax: This medication is used to treat a certain type of heart failure (transthyretin-mediated amyloidosis). Show more ▾ It is used to help prevent the heart failure from getting worse and needing treatment in a hospital. Tafamidis works by slowing the buildup of a certain protein (amyloid fibrils) that causes heart problems. May be effective in treating transthyretin amyloid polyneuropathy. In 2024, this provider wrote 16 Medicare prescriptions for Vyndamax, about a third of the volume of the typical North Carolina prescriber of this medication (42.8). Medicare paid an average of $21,807.57 per fill, versus $23,902.40 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 16 30-Day Fills standardized to 30-day supplies 480 Days of Medication total across all patients in 2024 | |||
| Hydrochlorothiazide | 15 | $3.48▼ below NC avg | ▼ Less than typical |
About Hydrochlorothiazide: This medication is used to treat high blood pressure. Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Hydrochlorothiazide belongs to a class of drugs known as diuretics/"water pills." It works by causing you to make more urine. This helps your body get rid of extra salt and water. This medication also reduces extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, or kidney disease. This can lessen symptoms such as shortness of breath or swelling in your ankles or feet. A thiazide diuretic often considered the prototypical member of this class. It reduces the reabsorption of electrolytes from the renal tubules. This results in increased excretion of water and electrolytes, including sodium, potassium, chloride, and magnesium. It is used in the treatment of several disorders including edema, hypertension, diabetes insipidus, and hypoparathyroidism. In 2024, this provider wrote 15 Medicare prescriptions for Hydrochlorothiazide, about 19% of the volume of the typical North Carolina prescriber of this medication (79.5). Medicare paid an average of $3.48 per fill, versus $4.14 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 31 30-Day Fills standardized to 30-day supplies 930 Days of Medication total across all patients in 2024 | |||
| Lisinopril | 13 | $5.53▼ below NC avg | ▼ Less than typical |
About Lisinopril: Lisinopril is used to treat high blood pressure. Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. It is also used to treat heart failure and to improve survival after a heart attack. Lisinopril belongs to a class of drugs known as ACE inhibitors. It works by relaxing blood vessels so blood can flow more easily. One of the ANGIOTENSIN-CONVERTING ENZYME INHIBITORS (ACE inhibitors), orally active, that has been used in the treatment of hypertension and congestive heart failure. In 2024, this provider wrote 13 Medicare prescriptions for Lisinopril, about 12% of the volume of the typical North Carolina prescriber of this medication (109.6). Medicare paid an average of $5.53 per fill, versus $6.57 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 35 30-Day Fills standardized to 30-day supplies 1,050 Days of Medication total across all patients in 2024 | |||
| Rosuvastatin Calcium | 12 | $16.50 | ▼ Less than typical |
About Rosuvastatin Calcium: 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. Show more ▾ It belongs to a group of drugs known as "statins." It works by reducing the amount of cholesterol made by the liver. Lowering "bad" cholesterol and triglycerides and raising "good" cholesterol decreases the risk of heart disease and helps to prevent strokes and heart attacks. In addition to eating a proper diet (such as a low cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Talk with your doctor for more details. A HYDROXYMETHYLGLUTARYL-COA-REDUCTASE INHIBITOR, or statin, that reduces the plasma concentrations of LDL-CHOLESTEROL; APOLIPOPROTEIN B, and TRIGLYCERIDES while increasing HDL-CHOLESTEROL levels in patients with HYPERCHOLESTEROLEMIA and those at risk for CARDIOVASCULAR DISEASES. In 2024, this provider wrote 12 Medicare prescriptions for Rosuvastatin Calcium, about 10% of the volume of the typical North Carolina prescriber of this medication (124.4). Medicare paid an average of $16.50 per fill, versus $11.22 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 24 30-Day Fills standardized to 30-day supplies 720 Days of Medication total across all patients in 2024 | |||
| Hydralazine Hcl | 12 | $11.45▼ below NC avg | ▼ Less than typical |
About Hydralazine Hcl: Hydralazine is used with or without other medications to treat high blood pressure. Show more ▾ Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Hydralazine is called a vasodilator. It works by relaxing blood vessels so blood can flow through the body more easily. A direct-acting vasodilator that is used as an antihypertensive agent. In 2024, this provider wrote 12 Medicare prescriptions for Hydralazine Hcl, about a third of the volume of the typical North Carolina prescriber of this medication (40.3). Medicare paid an average of $11.45 per fill, versus $12.84 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 29 30-Day Fills standardized to 30-day supplies 870 Days of Medication total across all patients in 2024 | |||
| Midodrine Hcl | 11 | $29.05▼ below NC avg | ▼ Less than typical |
About Midodrine Hcl: This medication is used for certain patients who have symptoms of low blood pressure when standing. Show more ▾ This condition is also known as orthostatic hypotension. Midodrine is used in people whose daily activities are severely affected by this condition, even after other treatments are used (such as support stockings). It is known as a sympathomimetic (alpha receptor agonist) that acts on the blood vessels to raise blood pressure. An ethanolamine derivative that is an adrenergic alpha-1 agonist. It is used as a vasoconstrictor agent in the treatment of HYPOTENSION. In 2024, this provider wrote 11 Medicare prescriptions for Midodrine Hcl, about a third of the volume of the typical North Carolina prescriber of this medication (26.6). Medicare paid an average of $29.05 per fill, versus $57.47 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 21 30-Day Fills standardized to 30-day supplies 600 Days of Medication total across all patients in 2024 | |||
| Atorvastatin Calcium | 11 | $10.36 | ▼ Less than typical |
About Atorvastatin Calcium: 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. Show more ▾ It belongs to a group of drugs known as "statins." It works by reducing the amount of cholesterol made by the liver. Lowering "bad" cholesterol and triglycerides and raising "good" cholesterol decreases the risk of heart disease and helps prevent strokes and heart attacks. In addition to eating a proper diet (such as a low-cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Consult your doctor for more details. A pyrrole and heptanoic acid derivative, HYDROXYMETHYLGLUTARYL-COA REDUCTASE INHIBITOR (statin), and ANTICHOLESTEREMIC AGENT that is used to reduce serum levels of LDL-CHOLESTEROL; APOLIPOPROTEIN B; and TRIGLYCERIDES. It is used to increase serum levels of HDL-CHOLESTEROL in the treatment of HYPERLIPIDEMIAS, and for the prevention of CARDIOVASCULAR DISEASES in patients with multiple risk factors. In 2024, this provider wrote 11 Medicare prescriptions for Atorvastatin Calcium, about 6% of the volume of the typical North Carolina prescriber of this medication (179.1). Medicare paid an average of $10.36 per fill, versus $9.41 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill Gross Part D cost per fill; not the patient's out-of-pocket price. 31 30-Day Fills standardized to 30-day supplies 930 Days of Medication total across all patients in 2024 | |||
| Valsartan | 11 | $21.38▼ below NC avg | ▼ Less than typical |
About Valsartan: Valsartan is used to treat high blood pressure and heart failure. Show more ▾ It is also used to improve the chance of living longer after a heart attack. In people with heart failure, it may also lower the chance of having to go to the hospital for heart failure. Valsartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). It works by relaxing blood vessels so that blood can flow more easily. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. A tetrazole derivative and ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKER that is used to treat HYPERTENSION. In 2024, this provider wrote 11 Medicare prescriptions for Valsartan, about a third of the volume of the typical North Carolina prescriber of this medication (38.1). Medicare paid an average of $21.38 per fill, versus $23.08 statewide. How often this provider prescribes it This provider prescribes this medication less often than the average NC prescriber. Utilization reflects practice size as well as clinical preference. What Medicare paid per fill This provider's average cost per fill is below the NC average for this medication. 33 30-Day Fills standardized to 30-day supplies 990 Days of Medication total across all patients in 2024 | |||
About this data. The prescription history for DAVID CHANG ISHIZAWAR M.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Advanced Heart Failure and Transplant Cardiology prescribing approach at this Raleigh, NC practice.
Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average among NC prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.
About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.
