DR. KATHLEEN A MACISAAC M.D.
Prescription History 1942473921
Otolaryngology in Lexington, VA
What does Dr. Macisaac prescribe?
In 2024, Dr. Macisaac wrote 80 Medicare prescriptions for 5 medications. The most prescribed was Liothyronine Sodium, with 30 prescriptions for 15 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. Macisaac 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 Virginia prescribers.
What it is used for
Liothyronine is used to treat an underactive thyroid (hypothyroidism).
Compared with Virginia prescribers
Dr. Macisaac wrote 30 prescriptions for Liothyronine Sodium, about as often as the typical Virginia prescriber of it (27). Medicare paid $61.10 per fill, versus $40.60 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Virginia prescribers
Dr. Macisaac wrote 14 prescriptions for Levothyroxine Sodium, about 11% as often as the typical Virginia prescriber of it (133). Medicare paid $22.36 per fill, versus $10.42 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Virginia prescribers
Dr. Macisaac wrote 13 prescriptions for Ozempic, about 25% as often as the typical Virginia prescriber of it (52). Medicare paid $813.55 per fill, versus $1,312.34 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 Virginia prescribers
Dr. Macisaac wrote 12 prescriptions for Potassium Chloride, about 22% as often as the typical Virginia prescriber of it (56). Medicare paid $31.12 per fill, versus $20.16 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 used to treat a variety of skin conditions (such as insect bites, poison oak/ivy, eczema, dermatitis, allergies, rash, itching of the outer female genitals, anal itching).
Compared with Virginia prescribers
Dr. Macisaac wrote 11 prescriptions for Hydrocortisone, about 38% as often as the typical Virginia prescriber of it (29). Medicare paid $33.76 per fill, versus $16.94 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. Macisaac’s prescriptions
What does Dr. Macisaac prescribe most?
In 2024 Medicare Part D data, Dr. Macisaac's most prescribed medications were Liothyronine Sodium (30), Levothyroxine Sodium (14) and Ozempic (13).
How does Dr. Macisaac's prescribing compare with other Virginia prescribers?
Of the 5 medications with a state comparison, Dr. Macisaac prescribes 1 about as often than the typical Virginia prescriber and 4 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Macisaac 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 Virginia 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.
