John K Byun, 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Eden Medical Center Hospital · Castro Valley, CA
• Stanford Health Care Hospital · Stanford, CA

Colleagues at Stanford Health Care

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3085 clinicians in the practice; 12 are shown here.

• Caroline Berube, MD Medical Oncology Physician · Stanford, CA
• Mallory Erin Frances Callahan, NP Adult Health Nurse Practitioner · Stanford, CA
• Lauren Michael Carpenter, MD Internal Medicine Physician · Palo Alto, CA
• Hafiza Dhamani, NP Psychiatric/Mental Health Nurse Practitioner · Stanford, CA
• Dr. Raymond Mc Hsu, MD Diagnostic Radiology Physician · Dallas, TX
• Joshua Wiley Knowles, MD Cardiovascular Disease Physician · Stanford, CA
• Christina Suzan Kong, MD Cytopathology Physician · Stanford, CA
• Eric Anthony Nash, MD Otolaryngology Physician · Stanford, CA
• Sachin Hitesh Patel, MD Surgery Physician · Palo Alto, CA
• Priyanka Arun Shah, PA-C Physician Assistant · Stanford, CA
• Ethan Andrew Solomon, MD, PHD Student in an Organized Health Care Education/Training Program · Stanford, CA
• Susan Marie Swetter, MD Dermatology Physician · Stanford, CA

Other providers in Stanford

• Michael S Binkley, MD

  Individual Radiation Oncology Physician · NPI 1760844856

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Scott Victor Bratman, MD, PHD

  Individual Radiation Oncology Physician · NPI 1164737318

  875 Blake Wilbur Drive Stanford Cancer Ctr, Stanford, CA 94305-5847 · (650) 723-6171

• Ryan Lennex Brunsing, MD, PHD

  Individual Radiation Oncology Physician · NPI 1568809259

  300 Pasteur Dr, Stanford, CA 94305 · (650) 723-4000

• Santino Sciscione Butler, MD

  Individual Radiation Oncology Physician · NPI 1588291447

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Ryan Tay Chao, MD

  Individual Radiation Oncology Physician · NPI 1235471608

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Rishabh Chaudhari, MD

  Individual Radiation Oncology Physician · NPI 1295155422

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 723-4000

• Dr. Nam Kyoung Cho, MD, PHD

  Individual Radiation Oncology Physician · NPI 1669668323

  875 Blake Wilbur Dr, Stanford, CA 94305 · (650) 723-6661

• Michael F Clarke, MD

  Individual Radiation Oncology Physician · NPI 1659553329

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 498-5710