PETER WAINAINA NP
Prescription History 1861267445
Nurse Practitioner in Canton, MA
What does Peter Wainaina prescribe?
In 2024, Peter Wainaina wrote 387 Medicare prescriptions for 21 medications. The most prescribed was Gabapentin, with 38 prescriptions.
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 Peter Wainaina prescribes.
Medications 21 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with Massachusetts prescribers
Peter Wainaina wrote 38 prescriptions for Gabapentin, about half as often as the typical Massachusetts prescriber of it (80). Medicare paid $16.55 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
Enoxaparin is used to prevent and treat harmful blood clots.
Compared with Massachusetts prescribers
Peter Wainaina wrote 34 prescriptions for Enoxaparin Sodium, about 1.3 times as often as the typical Massachusetts prescriber of it (25). Medicare paid $63.06 per fill, versus $118.80 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
Peter Wainaina wrote 27 prescriptions for Mirtazapine, about half as often as the typical Massachusetts prescriber of it (51). Medicare paid $19.18 per fill, versus $19.68 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
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
Peter Wainaina wrote 25 prescriptions for Furosemide, about 35% as often as the typical Massachusetts prescriber of it (72). Medicare paid $6.09 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
Lisinopril is used to treat high blood pressure.
Compared with Massachusetts prescribers
Peter Wainaina wrote 25 prescriptions for Lisinopril, about 20% as often as the typical Massachusetts prescriber of it (123). Medicare paid $12.37 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
This medication is used to treat anxiety.
Compared with Massachusetts prescribers
Peter Wainaina wrote 20 prescriptions for Lorazepam, about 34% as often as the typical Massachusetts prescriber of it (60). Medicare paid $14.49 per fill, versus $6.11 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
This medication is used to help relieve moderate to severe pain.
Compared with Massachusetts prescribers
Peter Wainaina wrote 20 prescriptions for Oxycodone Hcl, about half as often as the typical Massachusetts prescriber of it (45). Medicare paid $12.89 per fill, versus $12.16 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 beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Massachusetts prescribers
Peter Wainaina wrote 19 prescriptions for Metoprolol Succinate, about 17% as often as the typical Massachusetts prescriber of it (112). Medicare paid $18.25 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Massachusetts prescribers
Peter Wainaina wrote 18 prescriptions for Amlodipine Besylate, about 14% as often as the typical Massachusetts prescriber of it (126). Medicare paid $8.48 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
Peter Wainaina wrote 16 prescriptions for Eliquis, about 18% as often as the typical Massachusetts prescriber of it (88). Medicare paid $493.44 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
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 Massachusetts prescribers
Peter Wainaina wrote 15 prescriptions for Prednisone, about 34% as often as the typical Massachusetts prescriber of it (44). Medicare paid $4.76 per fill, versus $4.60 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 Massachusetts prescribers
Peter Wainaina wrote 14 prescriptions for Jantoven, about half as often as the typical Massachusetts prescriber of it (24). Medicare paid $3.70 per fill, versus $9.31 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 mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with Massachusetts prescribers
Peter Wainaina wrote 14 prescriptions for Quetiapine Fumarate, about 24% as often as the typical Massachusetts prescriber of it (59). Medicare paid $10.36 per fill, versus $18.29 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 used to treat depression.
Compared with Massachusetts prescribers
Peter Wainaina wrote 14 prescriptions for Trazodone Hcl, about 19% as often as the typical Massachusetts prescriber of it (72). Medicare paid $11.13 per fill, versus $9.86 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
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
Peter Wainaina wrote 13 prescriptions for Atorvastatin Calcium, about 7% as often as the typical Massachusetts prescriber of it (188). Medicare paid $19.81 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
This medication is used to treat depression.
Compared with Massachusetts prescribers
Peter Wainaina wrote 13 prescriptions for Citalopram Hbr, about 30% as often as the typical Massachusetts prescriber of it (43). Medicare paid $5.65 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
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with Massachusetts prescribers
Peter Wainaina wrote 13 prescriptions for Finasteride, about 23% as often as the typical Massachusetts prescriber of it (57). Medicare paid $9.50 per fill, versus $15.17 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
Peter Wainaina wrote 13 prescriptions for Tramadol Hcl, about 30% as often as the typical Massachusetts prescriber of it (44). Medicare paid $52.47 per fill, versus $6.91 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
This medication is used to treat anxiety.
Compared with Massachusetts prescribers
Peter Wainaina wrote 12 prescriptions for Buspirone Hcl, about 31% as often as the typical Massachusetts prescriber of it (39). Medicare paid $6.62 per fill, versus $15.99 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 used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Massachusetts prescribers
Peter Wainaina wrote 12 prescriptions for Sertraline Hcl, about 19% as often as the typical Massachusetts prescriber of it (62). Medicare paid $16.50 per fill, versus $10.02 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Massachusetts prescribers
Peter Wainaina wrote 12 prescriptions for Tamsulosin Hcl, about 15% as often as the typical Massachusetts prescriber of it (78). Medicare paid $15.52 per fill, versus $17.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Peter Wainaina’s prescriptions
What does Peter Wainaina prescribe most?
In 2024 Medicare Part D data, Peter Wainaina's most prescribed medications were Gabapentin (38), Enoxaparin Sodium (34) and Mirtazapine (27).
How does Peter Wainaina's prescribing compare with other Massachusetts prescribers?
Of the 21 medications with a state comparison, Peter Wainaina prescribes 1 more often than the typical Massachusetts prescriber and 20 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Peter Wainaina 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.
