WILLIAM K. REILLY MD
Prescription History 1407923402
Family Medicine - Geriatric Medicine in Los Angeles, CA

Active since November 29, 2006PECOS Enrolled
4733 W SUNSET BLVD, LOS ANGELES, CA 90027(323) 783-4011 Get Directions

NPPES record last updated: September 23, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for WILLIAM K. REILLY MD, an active Geriatric Medicine specialist practicing in Los Angeles, CA. Our medical registry currently tracks 2 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 33 documented patient claims. Among these therapy options, the most frequently utilized medication is Tamsulosin Hcl, which accounts for 22 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.

2
Medications
33
Total Claims
33
30-Day Fills
Tamsulosin Hcl
Most Prescribed · 22 claims
View details
2 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by WILLIAM K. REILLY MD in 2023, with prescription volumes, average cost per fill, and CA state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other CA PrescribersVs. CA Avg
Tamsulosin Hcl22$22.95 Less than typical

About Tamsulosin Hcl: Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). Show more ▾

It does not shrink the prostate, but it works by relaxing the muscles in the prostate and the bladder. This helps to relieve symptoms of BPH such as difficulty in beginning the flow of urine, weak stream, and the need to urinate often or urgently (including during the middle of the night). Tamsulosin belongs to a class of drugs known as alpha blockers. Do not use this medication to treat high blood pressure.

In 2023, this provider wrote 22 Medicare prescriptions for Tamsulosin Hcl, about a quarter of the volume of the typical California prescriber of this medication (80). Medicare paid an average of $22.95 per fill, versus $19.90 statewide.

How often this provider prescribes it

This provider
22
CA average
80.0

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

What Medicare paid per fill

This provider
$22.95
CA average
$19.90

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

22
30-Day Fills
standardized to 30-day supplies
600
Days of Medication
total across all patients in 2023
Carbidopa-LevodopaCarbidopa/Levodopa11$23.11▼ below CA avg Less than typical

About Carbidopa-Levodopa: This combination medication is used to treat symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving). Show more ▾

Parkinson's disease is thought to be caused by too little of a naturally occurring substance (dopamine) in the brain. Levodopa changes into dopamine in the brain, helping to control movement. Carbidopa prevents the breakdown of levodopa in the bloodstream so more levodopa can enter the brain. Carbidopa can also reduce some of levodopa's side effects such as nausea and vomiting.

In 2023, this provider wrote 11 Medicare prescriptions for Carbidopa-Levodopa, about 17% of the volume of the typical California prescriber of this medication (63). Medicare paid an average of $23.11 per fill, versus $51.33 statewide.

How often this provider prescribes it

This provider
11
CA average
63.0

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

What Medicare paid per fill

This provider
$23.11
CA average
$51.33

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

11
30-Day Fills
standardized to 30-day supplies
330
Days of Medication
total across all patients in 2023
No medications match the current filters.
More than typical Typical Less than typical= prescription volume vs the average CA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the CA average cost per fill.

About this data. The prescription history for WILLIAM K. REILLY MD is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, 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 Geriatric Medicine prescribing approach at this Los Angeles, CA 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 volume among CA prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.