Gabriel Noah Mannis, 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
• Ucsf Medical Center Hospital · San Francisco, 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.

• Samantha Nicole Balakrishnan, DNP Adult Health Nurse Practitioner · Stanford, CA
• Mariya Borodyanskaya, DO Child & Adolescent Psychiatry Physician · Palo Alto, CA
• Natalia Fijalkowski Callaway, MD Ophthalmology Physician · Stanford, CA
• Farnoosh Ebadat, NP Family Nurse Practitioner · Stanford, CA
• Charles Eli Liao, MD Internal Medicine Physician · Stanford, CA
• Douglas Zhi-Wen Liou, MD Surgery Physician · Palo Alto, CA
• Michelle Lo, MD Internal Medicine Physician · Stanford, CA
• Michael Gentoshi Ozawa, MD Cytopathology Physician · Stanford, CA
• Krishna Pundi Cardiovascular Disease Physician · Stanford, CA
• Erica P Ragan, PHD Clinical Psychologist · Stanford, CA
• Alexandra Ruan, MD Anesthesiology Physician · Stanford, CA
• Mrs. Christine Louise Szura Shen, RNACNP Acute Care Nurse Practitioner · Stanford, CA

Other providers in Stanford

• Dr. Melanie Catherine Majure, MD

  Individual Internal Medicine Physician · NPI 1255639969

  300 Pasteur Drive Stanford Hospitals And Clinics Rm S101, Stanford, CA 94305-5109 · (650) 498-4556

• Gordon Koon-Man Mak, MD

  Individual Internal Medicine Physician · NPI 1447330725

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

• Dr. Elizabeth Jane Malcolm, MD, MSHS

  Individual Internal Medicine Physician · NPI 1700838877

  1265 Welch Rd Medical School Ofc Bldg Rm X3C46, Stanford, CA 94305-5102 · (650) 723-2300

• Richie Varghese Manikat, MD

  Individual Internal Medicine Physician · NPI 1134545767

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

• Arek Melkon Manugian, MD

  Individual Internal Medicine Physician · NPI 1700142049

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

• Diane Ashley Mar, MD

  Individual Internal Medicine Physician · NPI 1356704795

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

• Dr. Aladin Tariao Mariano Jr., MD

  Individual Internal Medicine Physician · NPI 1144584996

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

• Jessie Tyra Markovits, MD

  Individual Internal Medicine Physician · NPI 1831432764

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