Andrea Portocarrero Castillo, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Mission Regional Medical Center Hospital · Mission, TX · listed as Mission Hospital, Inc
• Stanford Health Care Hospital · Stanford, CA

Colleagues at Silvia Castillo Sy Mdpa

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

• Mayra Derupe, FNP Primary Care Nurse Practitioner · Mission, TX
• Dr. Silvia Castillo Sy, MD Gastroenterology Physician · Mission, TX

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