Dr. Qiaqia Charlotte Wu, 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.

Colleagues at Johns Hopkins University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2855 clinicians in the practice; 12 are shown here.

• Andrew Cosgarea, MD Orthopaedic Surgery Physician · Lutherville, MD
• Ross C Donehower, MD Medical Oncology Physician · Lutherville, MD
• Allan Gottschalk, MD Anesthesiology Physician · Baltimore, MD
• Dr. Meisam Hoseinyazdi, MD Nuclear Medicine Physician · Dallas, TX
• Petros Karakousis, MD Infectious Disease Physician · Baltimore, MD
• Dr. Peter James Lax, MBCHBHONSFRCA Anesthesiology Physician · Baltimore, MD
• Morgan Theresa Mack, PA-S Physician Assistant · Baltimore, MD
• Lisa Maragakis, MD Infectious Disease Physician · Baltimore, MD
• Nicholas Maragakis, MD Neurology Physician · Baltimore, MD
• Nicholas Pereira Risko, MD Emergency Medicine Physician · Columbia, MD
• Dr. Jason Theis, MD, MPH Psychiatry Physician · Baltimore, MD
• Dr. Yonatan Negasi Yohannes, MD Emergency Medicine Physician · Columbia, MD

Other providers in Baltimore

• Dr. Heather Noelle Di Carlo, MD

  Individual Pediatric Urology Physician · NPI 1508032244

  1800 Orleans St Ste 7304 Johns Hopkins Medicine, Baltimore, MD 21287-0010 · (410) 955-5358

• Dr. Amanda Carlson North, MD

  Individual Pediatric Urology Physician · NPI 1679625495

  600 N Wolfe St Marburg 143, Baltimore, MD 21287-0005 · (410) 955-2914

• Dr. Ming Hsien Wang, MD

  Individual Pediatric Urology Physician · NPI 1518101823

  200 N Wolfe St, Baltimore, MD 21287-0011 · (410) 955-2914