Dr. Nguyen Waterman, OD

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 Chesapeake Eye Care and Laser Center LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 80 clinicians in the practice; 12 are shown here.

• Anjali Badami, MD Ophthalmology Physician · Washington, DC
• Maleiah Carroll, OD Optometrist · Baltimore, MD
• Dr. Diane Chang, MD, PHD Internal Medicine Physician · New York, NY
• Daliya Dzhaber, MD Cornea and External Diseases Specialist Physician · Annapolis, MD
• Robert Frank Friedman, MD Specialist · Westminster, MD
• Ivan Horacio Garcia Jr., MD Specialist · Baltimore, MD
• Trey Michel Haugen, OD Student in an Organized Health Care Education/Training Program · Elkridge, MD
• Krima Shah, OD Optometrist · Hagerstown, MD
• Michael Carmine Tigani, MD Ophthalmology Physician · Mc Lean, VA
• Mr. Jason Brent Wanner, DO Ophthalmology Physician · Prince Frederick, MD
• Samantha Leigh Williamson, MD Ophthalmology Physician · Baltimore, MD
• Mr. Jeremy Jakob Wood, MD Ophthalmology Physician · Frederick, MD

Other providers in Washington

• Dr. Rebecca Corinne Voorthuis, OD

  Individual Optometrist · NPI 1669524757

  3301 New Mexico Ave NW, Washington, DC 20016-3622 · (202) 363-5087

• Dr. Asha S Vyas, OD

  Individual Optometrist · NPI 1740769736

  50 Massachusetts Ave NE, Washington, DC 20002-4214 · (202) 827-6143

• Washington Eye Associates, PLLC

  Organization Optometrist · NPI 1053519884

  1717 Rhode Island Ave NW Ste 210, Washington, DC 20036-3023 · (202) 558-3824

• Washington Eye Doctors PC

  Organization Optometrist · NPI 1619064854

  900 17th St NW Ste 400, Washington, DC 20006-2507 · (202) 331-7566

• Lisa Kish Ziliak, OD

  Individual Optometrist · NPI 1831243484

  6900 Georgia Ave NW Heaton Pavilion (bldg 2) Ward 74, Washington, DC 20307-0003 · (202) 782-4955