DR. ERIC S KNOCHENHAUER MD
Prescription History 1295749430
Obstetrics & Gynecology - Reproductive Endocrinology in Staten Island, NY
What does Dr. Knochenhauer prescribe?
In 2024, Dr. Knochenhauer wrote 81 Medicare prescriptions for 5 medications. The most prescribed was Metformin Hcl, with 21 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 Dr. Knochenhauer prescribes.
Medications 5 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 New York prescribers.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with New York prescribers
Dr. Knochenhauer wrote 21 prescriptions for Metformin Hcl, about 21% as often as the typical New York prescriber of it (98). Medicare paid $2.61 per fill, versus $10.10 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
This medication is used to treat women with abnormal bleeding from the uterus.
Compared with New York prescribers
Dr. Knochenhauer wrote 18 prescriptions for Norethindrone Acetate, about as often as the typical New York prescriber of it (19). Medicare paid $26.35 per fill, versus $35.62 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
This medication is a hormone.
Compared with New York prescribers
Dr. Knochenhauer wrote 15 prescriptions for Estradiol, about 32% as often as the typical New York prescriber of it (47). Medicare paid $25.47 per fill, versus $84.40 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 New York prescribers
Dr. Knochenhauer wrote 14 prescriptions for Spironolactone, about 34% as often as the typical New York prescriber of it (42). Medicare paid $12.57 per fill, versus $8.37 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 combination hormone medication is used to prevent pregnancy.
Compared with New York prescribers
Fewer than five New York prescribers wrote this medication, so there is no state comparison.
Questions about Dr. Knochenhauer’s prescriptions
What does Dr. Knochenhauer prescribe most?
In 2024 Medicare Part D data, Dr. Knochenhauer's most prescribed medications were Metformin Hcl (21), Norethindrone Acetate (18) and Estradiol (15).
How does Dr. Knochenhauer's prescribing compare with other New York prescribers?
Of the 4 medications with a state comparison, Dr. Knochenhauer prescribes 1 about as often than the typical New York prescriber and 3 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Knochenhauer 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 New York 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.
