DAVID WESTFALL BATES MD
Prescription History 1013974708
Internal Medicine in Boston, MA
What does Dr. Bates prescribe?
In 2024, Dr. Bates wrote 522 Medicare prescriptions for 22 medications. The most prescribed was Lisinopril, with 65 prescriptions for 19 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. Bates prescribes.
Medications 22 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
Lisinopril is used to treat high blood pressure.
Compared with Massachusetts prescribers
Dr. Bates wrote 65 prescriptions for Lisinopril, about half as often as the typical Massachusetts prescriber of it (123). Medicare paid $8.31 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
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. Bates wrote 56 prescriptions for Atorvastatin Calcium, about 30% as often as the typical Massachusetts prescriber of it (188). Medicare paid $15.86 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
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. Bates wrote 46 prescriptions for Furosemide, about 64% as often as the typical Massachusetts prescriber of it (72). Medicare paid $7.87 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
This medication is used to treat high blood pressure.
Compared with Massachusetts prescribers
Dr. Bates wrote 37 prescriptions for Hydrochlorothiazide, about half as often as the typical Massachusetts prescriber of it (68). Medicare paid $4.12 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
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. Bates wrote 28 prescriptions for Losartan Potassium, about 31% as often as the typical Massachusetts prescriber of it (90). Medicare paid $16.35 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with Massachusetts prescribers
Dr. Bates wrote 26 prescriptions for Gabapentin, about 32% as often as the typical Massachusetts prescriber of it (80). Medicare paid $20.51 per fill, versus $14.49 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Massachusetts prescribers
Dr. Bates wrote 26 prescriptions for Omeprazole, about 27% as often as the typical Massachusetts prescriber of it (97). Medicare paid $23.51 per fill, versus $15.75 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. Bates wrote 25 prescriptions for Amlodipine Besylate, about 20% as often as the typical Massachusetts prescriber of it (126). Medicare paid $6.94 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
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with Massachusetts prescribers
Dr. Bates wrote 19 prescriptions for Diltiazem 24hr Er (Cd), about half as often as the typical Massachusetts prescriber of it (33). Medicare paid $17.34 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Massachusetts prescribers
Dr. Bates wrote 19 prescriptions for Levothyroxine Sodium, about 15% as often as the typical Massachusetts prescriber of it (123). Medicare paid $18.72 per fill, versus $10.45 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with Massachusetts prescribers
Dr. Bates wrote 19 prescriptions for Zolpidem Tartrate, about half as often as the typical Massachusetts prescriber of it (37). Medicare paid $5.52 per fill, versus $5.91 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
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Massachusetts prescribers
Dr. Bates wrote 18 prescriptions for Albuterol Sulfate Hfa, about 31% as often as the typical Massachusetts prescriber of it (58). Medicare paid $35.80 per fill, versus $31.48 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
Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed.
Compared with Massachusetts prescribers
Dr. Bates wrote 18 prescriptions for Famotidine, about 39% as often as the typical Massachusetts prescriber of it (46). Medicare paid $8.29 per fill, versus $14.29 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
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Massachusetts prescribers
Dr. Bates wrote 17 prescriptions for Metoprolol Succinate, about 15% as often as the typical Massachusetts prescriber of it (112). Medicare paid $15.33 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Massachusetts prescribers
Dr. Bates wrote 16 prescriptions for Atenolol, about 35% as often as the typical Massachusetts prescriber of it (46). Medicare paid $11.16 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
Acyclovir is used to treat infections caused by certain types of viruses.
Compared with Massachusetts prescribers
Dr. Bates wrote 14 prescriptions for Acyclovir, about half as often as the typical Massachusetts prescriber of it (28). Medicare paid $12.31 per fill, versus $17.16 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 medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Massachusetts prescribers
Dr. Bates wrote 14 prescriptions for Potassium Chloride, about 35% as often as the typical Massachusetts prescriber of it (40). Medicare paid $13.70 per fill, versus $23.86 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
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. Bates wrote 13 prescriptions for Eliquis, about 15% as often as the typical Massachusetts prescriber of it (88). Medicare paid $1,351.32 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
This medication is used to treat depression.
Compared with Massachusetts prescribers
Dr. Bates wrote 12 prescriptions for Citalopram Hbr, about 28% as often as the typical Massachusetts prescriber of it (43). Medicare paid $16.20 per fill, versus $8.54 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
Labetalol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Massachusetts prescribers
Dr. Bates wrote 12 prescriptions for Labetalol Hcl, about half as often as the typical Massachusetts prescriber of it (25). Medicare paid $25.81 per fill, versus $33.59 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
See also Warning section.
Compared with Massachusetts prescribers
Dr. Bates wrote 11 prescriptions for Diclofenac Sodium, about 30% as often as the typical Massachusetts prescriber of it (36). Medicare paid $66.91 per fill, versus $26.18 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
Hydralazine is used with or without other medications to treat high blood pressure.
Compared with Massachusetts prescribers
Dr. Bates wrote 11 prescriptions for Hydralazine Hcl, about 35% as often as the typical Massachusetts prescriber of it (31). Medicare paid $24.40 per fill, versus $15.57 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. Bates’s prescriptions
What does Dr. Bates prescribe most?
In 2024 Medicare Part D data, Dr. Bates's most prescribed medications were Lisinopril (65), Atorvastatin Calcium (56) and Furosemide (46).
How does Dr. Bates's prescribing compare with other Massachusetts prescribers?
Of the 22 medications with a state comparison, Dr. Bates prescribes 22 less often than the typical Massachusetts prescriber. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Bates 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.
