DR. KATHLEEN M LEWISON MD
Prescription History 1508981663
Obstetrics & Gynecology - Obstetrics in Whitefish, MT
What does Dr. Lewison prescribe?
In 2024, Dr. Lewison wrote 71 Medicare prescriptions for 3 medications. The most prescribed was Progesterone (progesterone, micronized), with 43 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. Lewison prescribes.
Medications 3 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 Montana prescribers.
What it is used for
Progesterone is a type of hormone (progestin).
Compared with Montana prescribers
Dr. Lewison wrote 43 prescriptions for Progesterone, about 1.9 times as often as the typical Montana prescriber of it (22). Medicare paid $36.95 per fill, versus $35.01 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 Montana prescribers
Dr. Lewison wrote 15 prescriptions for Estradiol, about half as often as the typical Montana prescriber of it (29). Medicare paid $64.30 per fill, versus $48.75 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Montana prescribers
Dr. Lewison wrote 13 prescriptions for Synthroid, about half as often as the typical Montana prescriber of it (26). Medicare paid $46.75 per fill, versus $55.64 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. Lewison’s prescriptions
What does Dr. Lewison prescribe most?
In 2024 Medicare Part D data, Dr. Lewison's most prescribed medications were Progesterone (43), Estradiol (15) and Synthroid (13).
How does Dr. Lewison's prescribing compare with other Montana prescribers?
Of the 3 medications with a state comparison, Dr. Lewison prescribes 1 more often than the typical Montana prescriber and 2 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Lewison 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 Montana 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.
