Jenna Thuc-Uyen Nguyen, 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 University Healthcare Alliance

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 332 clinicians in the practice; 12 are shown here.

• Mostafa Khaled Abdel-Hamid, MD Emergency Medicine Physician · Stanford, CA
• Adriana Arzate, PA-C Medical Physician Assistant · Emeryville, CA
• Jessica Kopcho Buesing, MD Internal Medicine Physician · Menlo Park, CA
• Nidhi Sunil Chaudhry, MD Internal Medicine Physician · Menlo Park, CA
• Dr. Jennifer Austin Conti, MD, MS Obstetrics & Gynecology Physician · Menlo Park, CA
• Dr. Linda M Gordon, MD Diagnostic Radiology Physician · San Jose, CA
• Dr. Jaya Karnani, MD Obstetrics Physician · Castro Valley, CA
• Margaret Anne Over, PA-C Physician Assistant · Pleasanton, CA
• Razia Abbas Rangwala, MD Family Medicine Physician · Pleasanton, CA
• Gurkamal Sandhu, MD Internal Medicine Physician · Pleasanton, CA
• Kelley Michele Scott, MD Internal Medicine Physician · Emeryville, CA
• Karen Yungjoo Whang, MD Surgery Physician · Menlo Park, CA

Other providers in Menlo Park

• Nancy P Cummings, MD

  Individual Allergy & Immunology Physician · NPI 1598728917

  1300 Crane St, Menlo Park, CA 94025-4429 · (650) 498-6500

• Anna Postolova, MD

  Individual Allergy & Immunology Physician · NPI 1932475316

  1300 Crane St, Menlo Park, CA 94025-4260 · (888) 924-1036

• Dr. Louanne Tourangeau, MD

  Individual Allergy & Immunology Physician · NPI 1558483685

  1300 Crane St, Menlo Park, CA 94025-4260 · (650) 498-6500