DR. MEGAN ROSEMARY WHELTON M.D.
Prescription History 1063737310
Internal Medicine - Interventional Cardiology in Stoneham, MA
What does Dr. Whelton prescribe?
In 2024, Dr. Whelton wrote 2,594 Medicare prescriptions for 33 medications. The most prescribed was Metoprolol Succinate, with 422 prescriptions for 142 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. Whelton prescribes.
Medications 33 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 Massachusetts 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 Massachusetts prescribers
Dr. Whelton wrote 422 prescriptions for Metoprolol Succinate, about 3.8 times as often as the typical Massachusetts prescriber of it (112). Medicare paid $21.26 per fill, versus $18.15 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 Massachusetts prescribers
Dr. Whelton wrote 242 prescriptions for Atorvastatin Calcium, about 1.3 times as often as the typical Massachusetts prescriber of it (188). Medicare paid $21.30 per fill, versus $13.82 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Massachusetts prescribers
Dr. Whelton wrote 231 prescriptions for Amlodipine Besylate, about 1.8 times as often as the typical Massachusetts prescriber of it (126). Medicare paid $7.66 per fill, versus $7.46 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 Massachusetts prescribers
Dr. Whelton wrote 215 prescriptions for Eliquis, about 2.5 times as often as the typical Massachusetts prescriber of it (88). Medicare paid $1,553.35 per fill, versus $852.50 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
Lisinopril is used to treat high blood pressure.
Compared with Massachusetts prescribers
Dr. Whelton wrote 172 prescriptions for Lisinopril, about 1.4 times as often as the typical Massachusetts prescriber of it (123). Medicare paid $6.98 per fill, versus $8.13 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
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 Massachusetts prescribers
Dr. Whelton wrote 133 prescriptions for Furosemide, about 1.8 times as often as the typical Massachusetts prescriber of it (72). Medicare paid $5.12 per fill, versus $5.71 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Massachusetts prescribers
Dr. Whelton wrote 121 prescriptions for Losartan Potassium, about 1.3 times as often as the typical Massachusetts prescriber of it (90). Medicare paid $10.57 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
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 Massachusetts prescribers
Dr. Whelton wrote 114 prescriptions for Rosuvastatin Calcium, about 1.4 times as often as the typical Massachusetts prescriber of it (79). Medicare paid $26.43 per fill, versus $28.16 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 Massachusetts prescribers
Dr. Whelton wrote 112 prescriptions for Spironolactone, about 2.8 times as often as the typical Massachusetts prescriber of it (40). Medicare paid $8.44 per fill, versus $9.98 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 Massachusetts prescribers
Dr. Whelton wrote 92 prescriptions for Ezetimibe, about 2.2 times as often as the typical Massachusetts prescriber of it (41). Medicare paid $49.01 per fill, versus $40.52 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
This medication is used to treat certain types of serious (possibly fatal) irregular heartbeat (such as recurrent ventricular fibrillation/tachycardia).
Compared with Massachusetts prescribers
Dr. Whelton wrote 86 prescriptions for Amiodarone Hcl, about 2.4 times as often as the typical Massachusetts prescriber of it (36). Medicare paid $48.40 per fill, versus $26.96 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
Isosorbide mononitrate is used to prevent chest pain (angina) in patients with a certain heart condition (coronary artery disease).
Compared with Massachusetts prescribers
Dr. Whelton wrote 57 prescriptions for Isosorbide Mononitrate Er, about 1.5 times as often as the typical Massachusetts prescriber of it (38). Medicare paid $17.77 per fill, versus $16.35 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 Massachusetts prescribers
Dr. Whelton wrote 55 prescriptions for Carvedilol, about 1.3 times as often as the typical Massachusetts prescriber of it (43). Medicare paid $9.31 per fill, versus $10.97 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 Massachusetts prescribers
Dr. Whelton wrote 50 prescriptions for Torsemide, about 1.2 times as often as the typical Massachusetts prescriber of it (42). Medicare paid $20.46 per fill, versus $20.11 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 Massachusetts prescribers
Dr. Whelton wrote 46 prescriptions for Diltiazem 24hr Er (Cd), about 1.4 times as often as the typical Massachusetts prescriber of it (33). Medicare paid $18.45 per fill, versus $35.05 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
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 Massachusetts prescribers
Dr. Whelton wrote 44 prescriptions for Xarelto, about as often as the typical Massachusetts prescriber of it (41). Medicare paid $1,611.77 per fill, versus $942.73 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 Massachusetts prescribers
Dr. Whelton wrote 43 prescriptions for Clopidogrel, about as often as the typical Massachusetts prescriber of it (39). Medicare paid $12.05 per fill, versus $15.13 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
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 Massachusetts prescribers
Dr. Whelton wrote 36 prescriptions for Simvastatin, about half as often as the typical Massachusetts prescriber of it (75). Medicare paid $20.87 per fill, versus $9.82 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Massachusetts prescribers
Dr. Whelton wrote 33 prescriptions for Metoprolol Tartrate, about 62% as often as the typical Massachusetts prescriber of it (54). Medicare paid $10.81 per fill, versus $7.85 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 Massachusetts prescribers
Dr. Whelton wrote 30 prescriptions for Pravastatin Sodium, about 66% as often as the typical Massachusetts prescriber of it (45). Medicare paid $23.50 per fill, versus $19.59 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 Massachusetts prescribers
Dr. Whelton wrote 29 prescriptions for Atenolol, about 64% as often as the typical Massachusetts prescriber of it (46). Medicare paid $7.38 per fill, versus $9.85 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 Massachusetts prescribers
Dr. Whelton wrote 29 prescriptions for Valsartan, about 85% as often as the typical Massachusetts prescriber of it (34). Medicare paid $55.82 per fill, versus $36.63 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
Evolocumab is used along with a proper diet to help lower "bad" cholesterol (LDL) in the blood.
Compared with Massachusetts prescribers
Dr. Whelton wrote 27 prescriptions for Repatha Sureclick, about 75% as often as the typical Massachusetts prescriber of it (36). Medicare paid $1,237.16 per fill, versus $951.45 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 Massachusetts prescribers
Dr. Whelton wrote 25 prescriptions for Hydrochlorothiazide, about 37% as often as the typical Massachusetts prescriber of it (68). Medicare paid $4.26 per fill, versus $4.39 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 Massachusetts prescribers
Dr. Whelton wrote 22 prescriptions for Flecainide Acetate, about half as often as the typical Massachusetts prescriber of it (38). Medicare paid $22.53 per fill, versus $49.68 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
This medication is used to relieve chest pain (angina) in people that have a certain heart condition (coronary artery disease).
Compared with Massachusetts prescribers
Dr. Whelton wrote 21 prescriptions for Nitroglycerin, about 76% as often as the typical Massachusetts prescriber of it (28). Medicare paid $17.37 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
Olmesartan is used to treat high blood pressure (hypertension).
Compared with Massachusetts prescribers
Dr. Whelton wrote 21 prescriptions for Olmesartan Medoxomil, about 67% as often as the typical Massachusetts prescriber of it (31). Medicare paid $21.17 per fill, versus $35.49 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 Massachusetts prescribers
Dr. Whelton wrote 17 prescriptions for Doxazosin Mesylate, about half as often as the typical Massachusetts prescriber of it (28). Medicare paid $11.80 per fill, versus $19.10 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
Chlorthalidone is used to treat high blood pressure (hypertension).
Compared with Massachusetts prescribers
Dr. Whelton wrote 16 prescriptions for Chlorthalidone, about half as often as the typical Massachusetts prescriber of it (27). Medicare paid $30.16 per fill, versus $21.30 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
Irbesartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Massachusetts prescribers
Dr. Whelton wrote 16 prescriptions for Irbesartan, about half as often as the typical Massachusetts prescriber of it (28). Medicare paid $56.31 per fill, versus $33.16 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 Massachusetts prescribers
Dr. Whelton wrote 13 prescriptions for Entresto, about 26% as often as the typical Massachusetts prescriber of it (50). Medicare paid $1,903.17 per fill, versus $1,073.16 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 Massachusetts prescribers
Dr. Whelton wrote 13 prescriptions for Prasugrel Hcl, about 66% as often as the typical Massachusetts prescriber of it (20). Medicare paid $80.02 per fill, versus $89.61 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 high blood pressure (hypertension), heart failure, or extra fluid in the body (edema).
Compared with Massachusetts prescribers
Dr. Whelton wrote 11 prescriptions for Spironolactone-Hctz, about half as often as the typical Massachusetts prescriber of it (24). Medicare paid $39.97 per fill, versus $32.34 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. Whelton’s prescriptions
What does Dr. Whelton prescribe most?
In 2024 Medicare Part D data, Dr. Whelton's most prescribed medications were Metoprolol Succinate (422), Atorvastatin Calcium (242) and Amlodipine Besylate (231).
How does Dr. Whelton's prescribing compare with other Massachusetts prescribers?
Of the 33 medications with a state comparison, Dr. Whelton prescribes 14 more often than the typical Massachusetts prescriber, 5 about as often and 14 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Whelton 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 Massachusetts 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.
