Melanie Gail Hayden Gephart, 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
• Stanford Health Care Tri-Valley Hospital · Pleasanton, 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.

• Fahed Noel Ayoub, MD Otolaryngology Physician · Stanford, CA
• Matthew Charles Baker, MD Internal Medicine Physician · Stanford, CA
• Christine Burgos-Robles, PA-C Physician Assistant · Stanford, CA
• Mr. Alexander Li-Che Chin, MD Radiation Oncology Physician · Palo Alto, CA
• Masataka Kawana, MD Internal Medicine Physician · Stanford, CA
• Kevin Robert Keet, MD Hospitalist Physician · Stanford, CA
• Jonathan Beaux Lin, MD, PHD Ophthalmology Physician · Stanford, CA
• Jai Madhok, MD Critical Care Medicine (Anesthesiology) Physician · Stanford, CA
• Ian David Montgomery, NP Registered Nurse · Stanford, CA
• Michael James Polignano, MD Psychiatry Physician · Stanford, CA
• Jessica Walter, MD Neurology Physician · Stanford, CA
• Nicholas William Wiseman, PA-C Surgical Physician Assistant · Stanford, CA

Other providers in Stanford

• Dr. Raphael Guzman, MD

  Individual Neurological Surgery Physician · NPI 1366639858

  300 Pasteur Dr Rm R211 MC 5327, Stanford, CA 94305-2200 · (650) 497-8775

• Seunggu Jude Han, MD

  Individual Neurological Surgery Physician · NPI 1588980023

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

• Ake Hansasuta

  Individual Neurological Surgery Physician · NPI 1356578587

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

• Odette Althea Harris, MD

  Individual Neurological Surgery Physician · NPI 1144237009

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

• Jaimie Macdonald Henderson, MD

  Individual Neurological Surgery Physician · NPI 1881749513

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

• Yusuke Hori, MD

  Individual Neurological Surgery Physician · NPI 1578042354

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

• Dr. Lewis Hou, MD

  Individual Neurological Surgery Physician · NPI 1992985634

  300 Pasteur Dr Dept OF Neurosurgery, Stanford, CA 94305-2200 · (650) 723-5575

• Stephen L. Huhn, MD

  Individual Neurological Surgery Physician · NPI 1962539346

  300 Pasteur Dr, Stanford, CA 94305-2200 · (650) 498-7103