D'Andre Williams, 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.

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.

• Medstar Southern Maryland Hospital Center Hospital · Clinton, MD · listed as Medstar Southern Maryland Hospital Center Inc
• Medstar Washington Hospital Center Hospital · Washington, DC · listed as Washington Hospital Center Corporation
• Medstar Montgomery Medical Center Hospital · Olney, MD

Colleagues at Medstar Heart Institute LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 311 clinicians in the practice; 12 are shown here.

• Orest Bartoszyk, MD Cardiovascular Disease Physician · Waldorf, MD
• Dr. Joshua Dearing, MD Vascular Surgery Physician · Clinton, MD
• Mrs. Sarah D Duncan, RN, CCRN Acute Care Nurse Practitioner · Manassas, VA
• Stuart D Gould, MD Internal Medicine Physician · Marlton, NJ
• Ayesha Nzeribe Hatch, MD Vascular Surgery Physician · Stony Brook, NY
• Matthew Kogan, MD Cardiovascular Disease Physician · Chicago, IL
• Dr. Mark O'Brien Peeler, MD Surgery Physician · Annapolis, MD
• Mrs. Amanda Lynn Simonton, PA-C Medical Physician Assistant · Perry Hall, MD
• Monvadi Barbara Srichai-Parsia, MD Cardiovascular Disease Physician · New York, NY
• Jaymie F St Peter Family Nurse Practitioner · Houlton, ME
• Dr. David A Strouse, MD, FACC Clinical Cardiac Electrophysiology Physician · Fairfax, VA
• Dr. Weining David Xu, MD Advanced Heart Failure and Transplant Cardiology Physician · Baltimore, MD

Other providers in Washington

• Dr. Anton N Sidawy, MD

  Individual Vascular Surgery Physician · NPI 1215038369

  2150 Pennsylvania Ave NW Ste 6B, Washington, DC 20037-3201 · (202) 741-3225

• Surgical Associates Chartered

  Organization Vascular Surgery Physician · NPI 1639983711

  1160 Varnum St NE Ste 318, Washington, DC 20017-2103 · (240) 427-1630

• USA Vascular Centers of District of Columbia LLC

  Organization Vascular Surgery Physician · NPI 1841802857

  6323 Georgia Ave NW Ste 103, Washington, DC 20011-1137 · (847) 593-8460

• USA Vein Clinics of District of Columbia LLC

  Organization Vascular Surgery Physician · NPI 1710359211

  6323 Georgia Ave NW Ste 101, Washington, DC 20011-1137 · (847) 257-1244