Roxanne Blackwell

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

• St David'S Medical Center Hospital · Austin, TX
• Round Rock Medical Center Hospital · Round Rock, TX

Colleagues at St Davids Heart and Vascular PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 198 clinicians in the practice; 12 are shown here.

• Sam Afshar, MD Internal Medicine Physician · Round Rock, TX
• MS. Katharyn Elizabeth Joy Berger, PA Physician Assistant · San Marcos, TX
• Jessica Anne Brown, FNP Family Nurse Practitioner · Austin, TX
• Dr. Edward Robert Chafizadeh, MD Interventional Cardiology Physician · Austin, TX
• Mr. Randy F McCollough, MD Cardiovascular Disease Physician · Harker Heights, TX
• Hannah Margaret Morgan-Valadez, AGACNP Acute Care Nurse Practitioner · Austin, TX
• Hetal Rathod, NP Family Nurse Practitioner · Cedar Park, TX
• Mayce Sadi, PA-C Physician Assistant · Leander, TX
• Shannon Morse Strathmann, CNS Adult Health Clinical Nurse Specialist · Austin, TX
• Faisal Mohammed Syed, MD Cardiovascular Disease Physician · San Marcos, TX
• Francis Joseph Zidar, MD Cardiovascular Disease Physician · Austin, TX
• Dr. Michelle Zikusoka, MD Cardiovascular Disease Physician · Baltimore, MD

Other providers in Round Rock

• Daniel Paul Frost, RN

  Individual Critical Care Medicine Registered Nurse · NPI 1518725514

  300 University Blvd, Round Rock, TX 78665-1032 · (512) 509-0100

• Jennifer Smalley, MSN, RN, CCRN

  Individual Critical Care Medicine Registered Nurse · NPI 1891672820

  201 Seton Pkwy, Round Rock, TX 78665-8000 · (512) 341-4000