Dr. Derrick Duong Nguyen, MD

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.

• Ascension Seton Hays Hospital · Kyle, TX · listed as Ascension Seton
• Baylor Scott & White Medical Center - Temple Hospital · Temple, TX · listed as Scott and White Health Plan
• St David'S Medical Center Hospital · Austin, TX
• Adventhealth Central Texas Hospital · Killeen, TX
• Baylor Scott & White Medical Center - Marble Falls Hospital · Marble Falls, TX

Colleagues at American Oncology Partners PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 383 clinicians in the practice; 12 are shown here.

• Dr. Ashok Bapat, MD Hematology (Internal Medicine) Physician · Fort Myers, FL
• MA Rosa Almendras Brown, NURSEPRACTITIONER Gerontology Nurse Practitioner · Rockville, MD
• Katherine Collins, FNP-C Family Nurse Practitioner · Kansas City, MO
• Majd Issa, MD Hematology & Oncology Physician · Fredericksburg, VA
• Timothy A Jamieson, MD Radiation Oncology Physician · Brunswick, GA
• Miss. Jeanna Lynn Knoble, MD Hematology & Oncology Physician · Columbus, OH
• Dr. Ramon Sabastian Mourelo, MD Specialist · Casa Grande, AZ
• Venkata Krishna Jayanth Parsa, MD Medical Oncology Physician · Fort Myers, FL
• Poongothai Sundaram, MD Medical Oncology Physician · Columbus, OH
• Alina Thompson Family Medicine Physician · Atlanta, GA
• Naga Malleswari Vutukuri, MD Internal Medicine Physician · Fort Wayne, IN
• Lauren Brooke Winningham, NP-C Family Nurse Practitioner · Fort Wayne, IN

Other providers in Georgetown

• Brian Jay Shimkus, MD

  Individual Medical Oncology Physician · NPI 1730164591

  3201 S Austin Ave Ste 315, Georgetown, TX 78626-7642 · (512) 358-9428

• Texas Integrated Medical Specialists, PLLC

  Organization Medical Oncology Physician · NPI 1558080416

  2000 Scenic Dr Ste G002, Georgetown, TX 78626-7726 · (512) 531-5200