Louise Ying Pw Sun, 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.

• 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.

• Alan K Chye, PA-C Surgical Physician Assistant · Stanford, CA
• Gwendolyn Dunevant Coffey, NP Adult Health Nurse Practitioner · Stanford, CA
• Michael Albert Gisondi, MD Emergency Medicine Physician · Stanford, CA
• Maximilian Julve, MD Medical Oncology Physician · Stanford, CA
• Maggie Mei Kei Lam, MD Anatomic Pathology & Clinical Pathology Physician · Stanford, CA
• James William Langston, MD Neurology Physician · Stanford, CA
• Jong Hyon Lee, MD Internal Medicine Physician · Stanford, CA
• Kenneth William Mahaffey, MD Cardiovascular Disease Physician · Stanford, CA
• Lynn Khaonh Ngo, MD Internal Medicine Physician · Stanford, CA
• Robert William Shafer, MD Infectious Disease Physician · Stanford, CA
• Wen-Kai Weng, MD, PHD Hematology & Oncology Physician · Stanford, CA
• Joseph Ching-Ming Wu, MD Cardiovascular Disease Physician · Stanford, CA

Other providers in Stanford

• Karin Stuff

  Individual Anesthesiology Physician · NPI 1194110015

  300 Pasteur Dr Dept OF Anesthesia, Stanford, CA 94305-2200 · (408) 646-9412

• Mahir Sufian

  Individual Anesthesiology Physician · NPI 1528709904

  300 Pasteur Drive Lane 154, Stanford, CA 94305-5133 · (650) 723-6661

• Tara Marie Sullivan, MD

  Individual Anesthesiology Physician · NPI 1902853104

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

• Ellile Sultan, MD

  Individual Anesthesiology Physician · NPI 1639736218

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

• Mallika Kaushal Tamboli, MD

  Individual Anesthesiology Physician · NPI 1093344848

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

• Pedro Paulo Tanaka, MD

  Individual Anesthesiology Physician · NPI 1437294477

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

• Dr. Jennifer Elizabeth Taylor, MBBCH

  Individual Anesthesiology Physician · NPI 1487120739

  300 Pasteur Dr, Stanford, CA 94305-2200 · (593) 665-0683

• Kristen Marie Telischak, MD

  Individual Anesthesiology Physician · NPI 1245567395

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