JOSE R CASTELLANOS MD
Prescription History 1245790377
Internal Medicine in Chicago, IL

Active since March 24, 2019PECOS EnrolledAccepts Medicare Assignment
303 E SUPERIOR ST FL 5, CHICAGO, IL 60611(312) 908-8163 Get Directions

NPPES record last updated: May 22, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 22, 2025, Jul 14, 2022, Oct 22, 2020 and 1 more (4 updates tracked since 2019).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for JOSE R CASTELLANOS MD, an active Internal Medicine specialist practicing in Chicago, IL. 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 Albuterol Sulfate Hfa, 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
12
30-Day Fills
Albuterol Sulfate Hfa
Most Prescribed · 12 claims
View details
1 medication · 2024 Medicare Part D
Medicare Part D medications prescribed by JOSE R CASTELLANOS MD in 2024, with prescription volumes, average cost per fill, and IL state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other IL PrescribersVs. IL Avg
Albuterol Sulfate HfaAlbuterol Sulfate12$26.53▼ below IL avg▼ Less than typical

About Albuterol Sulfate Hfa: Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease). Show more ▾

It is also used to prevent asthma brought on by exercise. It is a quick-relief drug. Albuterol belongs to a class of drugs known as bronchodilators. It works by relaxing the muscles around the airways so that they open up and you can breathe more easily. Controlling symptoms of breathing problems can decrease time lost from work or school. A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.

In 2024, this provider wrote 12 Medicare prescriptions for Albuterol Sulfate Hfa, about 20% of the volume of the typical Illinois prescriber of this medication (61). Medicare paid an average of $26.53 per fill, versus $31.97 statewide.

How often this provider prescribes it

This provider
12
IL average
61.0

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

What Medicare paid per fill

This provider
$26.53
IL average
$31.97

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

12
30-Day Fills
standardized to 30-day supplies
255
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 IL prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the IL average cost per fill.

About this data. The prescription history for JOSE R CASTELLANOS 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 Internal Medicine prescribing approach at this Chicago, IL 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 IL 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.