Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MICHAEL DAVID DENNIS DO
Prescription History 1730756404
Internal Medicine - Rheumatology in Urbandale, IA

Active since June 09, 2021PECOS Enrolled
4323 NW URBANDALE DR, URBANDALE, IA 50322(515) 875-9790 Get Directions

NPPES record last updated: September 2, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 2, 2026, Jul 1, 2024, Jun 21, 2021 and 1 more (4 updates tracked since 2021).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for MICHAEL DAVID DENNIS DO, an active Rheumatology specialist practicing in Urbandale, IA. Our medical registry currently tracks 1 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 12 documented patient claims. Among these therapy options, the most frequently utilized medication is Prednisone, which accounts for 12 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
12
Total Claims
20
30-Day Fills
Prednisone
Most Prescribed · 12 claims
View details
1 medication · 2024 Medicare Part D
Medicare Part D medications prescribed by MICHAEL DAVID DENNIS DO in 2024, with prescription volumes, average cost per fill, and IA state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other IA PrescribersVs. IA Avg
Prednisone12$9.15▼ Less than typical

About Prednisone: Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders. Show more ▾

Prednisone belongs to a class of drugs known as corticosteroids. It decreases your immune system's response to various diseases to reduce symptoms such as swelling and allergic-type reactions. A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.

In 2024, this provider wrote 12 Medicare prescriptions for Prednisone, about a quarter of the volume of the typical Iowa prescriber of this medication (47.9). Medicare paid an average of $9.15 per fill, versus $3.46 statewide.

How often this provider prescribes it

This provider
12
IA average
47.9

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

What Medicare paid per fill

This provider
$9.15
IA average
$3.46

Gross Part D cost per fill; not the patient's out-of-pocket price.

20.4
30-Day Fills
standardized to 30-day supplies
569
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 IA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the IA average cost per fill.

About this data. The prescription history for MICHAEL DAVID DENNIS DO 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 Rheumatology prescribing approach at this Urbandale, IA 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 IA 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.