DR. MICHELLE ICHIKAWA MD
Prescription History 1376996751
Obstetrics & Gynecology in Clackamas, OR

Active since July 20, 2016PECOS EnrolledAccepts Medicare Assignment
10180 SE SUNNYSIDE RD, CLACKAMAS, OR 97015(503) 813-2000 Get Directions

NPPES record last updated: December 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 11, 2025, Aug 11, 2025, Oct 20, 2023 and 2 more (5 updates tracked since 2019).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. MICHELLE ICHIKAWA MD, an active Obstetrics & Gynecology specialist practicing in Clackamas, OR. Our medical registry currently tracks 1 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 21 documented patient claims. Among these therapy options, the most frequently utilized medication is Estradiol, which accounts for 21 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.

1
Medication
21
Total Claims
22
30-Day Fills
Estradiol
Most Prescribed · 21 claims
View details
1 medication · 2024 Medicare Part D
Medicare Part D medications prescribed by DR. MICHELLE ICHIKAWA MD in 2024, with prescription volumes, average cost per fill, and OR state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other OR PrescribersVs. OR Avg
Estradiol21$40.00▼ below OR avg▼ Less than typical

About Estradiol: This medication is a hormone. Show more ▾

It is used by women to help reduce vaginal symptoms of menopause (such as vaginal dryness/burning/itching). These symptoms are caused by the body making less estrogen. When treating only vaginal symptoms of menopause, products applied directly inside the vagina (such as this medication) should be used first. Estrogens that are taken by mouth, absorbed through the skin, or injected may have greater risks of side effects due to more estrogen being absorbed. The 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position. Estradiol-17-beta is the most potent form of mammalian estrogenic steroids.

In 2024, this provider wrote 21 Medicare prescriptions for Estradiol, about 61% of the volume of the typical Oregon prescriber of this medication (34.3). Medicare paid an average of $40.00 per fill, versus $53.88 statewide.

How often this provider prescribes it

This provider
21
OR average
34.3

This provider prescribes this medication less often than the average OR prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$40.00
OR average
$53.88

This provider's average cost per fill is below the OR average for this medication.

22.3
30-Day Fills
standardized to 30-day supplies
638
Days of Medication
total across all patients in 2024
No medications match the current filters.
▲ More than typical≈ Typical▼ Less than typical= prescription volume vs the average OR prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the OR average cost per fill.

About this data. The prescription history for DR. MICHELLE ICHIKAWA MD is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Obstetrics & Gynecology prescribing approach at this Clackamas, OR practice.

Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average among OR prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.

About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.