Ariela Zenilman, 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.

• Usc Arcadia Hospital Hospital · Arcadia, CA
• Usc Verdugo Hills Hospital Hospital · Glendale, CA
• Keck Hospital Of Usc Hospital · Los Angeles, CA

Colleagues at USC Care Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1371 clinicians in the practice; 12 are shown here.

• Ann Reed Barnett, MD Emergency Medicine Physician · Los Angeles, CA
• Dr. Ahmet Baydur, MD Pulmonary Disease Physician · Los Angeles, CA
• Marland Deshawn Browning, DPT Physical Therapist · Los Angeles, CA
• John C. Chen, MD Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Los Angeles, CA
• Nora Dixon, OTR/L Occupational Therapist · Los Angeles, CA
• Peter Hu, MD Vascular & Interventional Radiology Physician · Los Angeles, CA
• Dr. Gino K In, MD Hematology & Oncology Physician · Los Angeles, CA
• Melody Joy Mayaco, NP-C Acute Care Nurse Practitioner · Los Angeles, CA
• Van Nguyen, MD Student in an Organized Health Care Education/Training Program · Los Angeles, CA
• Dr. Christina Ratto, MD Anesthesiology Physician · Los Angeles, CA
• Dr. Ashley Semble, MD Internal Medicine Physician · Los Angeles, CA
• Tania Vartanians, PAC Physician Assistant · Los Angeles, CA

Other providers in Los Angeles

• Vitalheal, a Professional Corporation

  Organization Vascular Surgery Physician · NPI 1063363919

  1494 S Robertson Blvd Ste 201, Los Angeles, CA 90035 · (626) 765-4302

• Mr. Willis H. Wagner, MD

  Individual Vascular Surgery Physician · NPI 1003836248

  8631 W 3rd St Ste 615E, Los Angeles, CA 90048-5901 · (310) 652-8132

• Wayne S. Gradman, MD Inc

  Organization Vascular Surgery Physician · NPI 1487831046

  2080 Century Park E Ste #803, Los Angeles, CA 90067-2001 · (310) 277-4868

• Fred A. Weaver, MD

  Individual Vascular Surgery Physician · NPI 1417989344

  1520 San Pablo St Ste 4300, Los Angeles, CA 90033-5330 · (323) 442-5849

• Dr. Kenneth Richard Ziegler, MD

  Individual Vascular Surgery Physician · NPI 1275717514

  1520 San Pablo St Ste 4300, Los Angeles, CA 90033-5310 · (323) 442-5849