Jiyong Lee

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.

• Medstar Washington Hospital Center Hospital · Washington, DC · listed as Washington Hospital Center Corporation
• Sibley Memorial Hospital Hospital · Washington, DC
• Suburban Hospital Hospital · Bethesda, MD

Colleagues at Cardiocare LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 17 clinicians in the practice; 12 are shown here.

• Tsion Aberra, MD Internal Medicine Physician · Chevy Chase, MD
• Dr. Supria Batra, MD Internal Medicine Physician · Chevy Chase, MD
• Catherine S Bennet Internal Medicine Physician · Chevy Chase, MD
• Miss. Stephanie W Conn, PAC Medical Physician Assistant · Washington, DC
• Dr. Daphne Evans, MD Internal Medicine Physician · New Haven, CT
• Dr. Brian Andrew Hemann, MD Cardiovascular Disease Physician · Bethesda, MD
• Matthew R Jezior Interventional Cardiology Physician · Chevy Chase, MD
• Dr. Martin S. Kanovsky, MD Cardiovascular Disease Physician · Chevy Chase, MD
• Dr. Reza Sanai, MD Cardiovascular Disease Physician · Chevy Chase, MD
• Dr. Viral Ras Sheth, MD Cardiovascular Disease Physician · Goshen, NY
• Dr. Allison W. Warren, MD Clinical Cardiac Electrophysiology Physician · Washington, DC
• Shaneke Tharange Weerakoon, MD Cardiovascular Disease Physician · Washington, DC

Other providers in Chevy Chase

• Dr. Jack L. Flyer, MD

  Individual Cardiovascular Disease Physician · NPI 1871569483

  5530 Wisconsin Ave Ste 700, Chevy Chase, MD 20815-4401 · (301) 656-5050

• Gary P Fisher MD LLC

  Organization Cardiovascular Disease Physician · NPI 1265709083

  5530 Wisconsin Ave Ste #711, Chevy Chase, MD 20815-4404 · (301) 654-1059

• Dr. Martin S. Kanovsky, MD

  Individual Cardiovascular Disease Physician · NPI 1568437333

  5530 Wisconsin Ave Ste 700, Chevy Chase, MD 20815-4401 · (301) 656-5050

• Morton A. Kavalier, MD

  Individual Cardiovascular Disease Physician · NPI 1508863440

  5454 Wisconsin Ave Ste 925, Chevy Chase, MD 20815-6901 · (301) 657-1682

• Dr. Robert J Marshall, MD

  Individual Cardiovascular Disease Physician · NPI 1053365189

  5425 Wisconsin Ave Ste 810, Chevy Chase, MD 20815-3552 · (202) 266-7070

• Kenneth A Merkatz, MD

  Individual Cardiovascular Disease Physician · NPI 1891794905

  5530 Wisconsin Ave Ste 1100, Chevy Chase, MD 20815-4330 · (301) 656-9070

• Dr. Allen A. Nimetz, MD

  Individual Cardiovascular Disease Physician · NPI 1003881871

  5530 Wisconsin Ave Ste 700, Chevy Chase, MD 20815-4404 · (301) 656-5050

• Valerie Polk, FNP-C

  Individual Cardiovascular Disease Physician · NPI 1023371671

  5530 Wisconsin Ave Ste 1248, Chevy Chase, MD 20815-4301 · (301) 654-1059