MRS. KATHERINE MARY VANDER ZANDEN APNP
Prescription History 1639655491
Nurse Practitioner in Green Bay, WI
What does Katherine Vander Zanden prescribe?
In 2024, Katherine Vander Zanden wrote 272 Medicare prescriptions for 15 medications. The most prescribed was Anastrozole, with 42 prescriptions for 12 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 Katherine Vander Zanden prescribes.
Medications 15 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 Wisconsin prescribers.
What it is used for
Anastrozole is used to treat breast cancer in women after menopause.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 42 prescriptions for Anastrozole, about half as often as the typical Wisconsin prescriber of it (74). Medicare paid $16.24 per fill, versus $17.51 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 Wisconsin prescribers
Katherine Vander Zanden wrote 34 prescriptions for Gabapentin, about 38% as often as the typical Wisconsin prescriber of it (89). Medicare paid $15.90 per fill, versus $17.24 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 Wisconsin prescribers
Katherine Vander Zanden wrote 26 prescriptions for Acyclovir, about 82% as often as the typical Wisconsin prescriber of it (32). Medicare paid $9.47 per fill, versus $15.62 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 22 prescriptions for Amlodipine Besylate, about 15% as often as the typical Wisconsin prescriber of it (145). Medicare paid $4.45 per fill, versus $6.64 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
Tamoxifen is used to treat breast cancer.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 19 prescriptions for Tamoxifen Citrate, about half as often as the typical Wisconsin prescriber of it (43). Medicare paid $24.44 per fill, versus $27.58 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
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 15 prescriptions for Alendronate Sodium, about 30% as often as the typical Wisconsin prescriber of it (50). Medicare paid $8.48 per fill, versus $9.00 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 Wisconsin prescribers
Katherine Vander Zanden wrote 15 prescriptions for Prednisone, about 35% as often as the typical Wisconsin prescriber of it (42). Medicare paid $3.58 per fill, versus $4.42 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 Wisconsin prescribers
Katherine Vander Zanden wrote 13 prescriptions for Eliquis, about 15% as often as the typical Wisconsin prescriber of it (86). Medicare paid $598.12 per fill, versus $901.68 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 treat certain types of breast cancer (such as hormone-receptor-positive breast cancer) in women after menopause.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 13 prescriptions for Letrozole, about 32% as often as the typical Wisconsin prescriber of it (40). Medicare paid $21.98 per fill, versus $21.69 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 Wisconsin prescribers
Katherine Vander Zanden wrote 13 prescriptions for Losartan Potassium, about 10% as often as the typical Wisconsin prescriber of it (128). Medicare paid $9.94 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
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 13 prescriptions for Ondansetron Hcl, about half as often as the typical Wisconsin prescriber of it (27). Medicare paid $2.23 per fill, versus $18.68 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
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 Wisconsin prescribers
Katherine Vander Zanden wrote 12 prescriptions for Famotidine, about 26% as often as the typical Wisconsin prescriber of it (45). Medicare paid $9.90 per fill, versus $14.60 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 by people with sickle cell anemia to reduce the number of painful crises caused by the disease and to reduce the need for blood transfusions.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 12 prescriptions for Hydroxyurea, about 35% as often as the typical Wisconsin prescriber of it (35). Medicare paid $25.19 per fill, versus $24.86 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
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 12 prescriptions for Potassium Chloride, about 19% as often as the typical Wisconsin prescriber of it (64). Medicare paid $6.35 per fill, versus $22.54 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
This medication is used to treat low platelet levels in people who have a certain blood disorder called chronic immune (idiopathic) thrombocytopenia purpura (ITP) or who have chronic hepatitis C.
Compared with Wisconsin prescribers
Katherine Vander Zanden wrote 11 prescriptions for Promacta, about 79% as often as the typical Wisconsin prescriber of it (14). Medicare paid $11,591.53 per fill, versus $16,573.75 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Katherine Vander Zanden’s prescriptions
What does Katherine Vander Zanden prescribe most?
In 2024 Medicare Part D data, Katherine Vander Zanden's most prescribed medications were Anastrozole (42), Gabapentin (34) and Acyclovir (26).
How does Katherine Vander Zanden's prescribing compare with other Wisconsin prescribers?
Of the 15 medications with a state comparison, Katherine Vander Zanden prescribes 2 about as often than the typical Wisconsin prescriber and 13 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Katherine Vander Zanden 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 Wisconsin 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.
