Mohammadbagher Ziari, 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. Those with a page here are linked.

• Hoag Memorial Hospital Presbyterian Hospital · Newport Beach, CA
• Uci Health-Orange Hospital · Orange, CA

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Uc Regents

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 306 clinicians in the practice; 12 are shown here.

• C Gregory Albers, MD Gastroenterology Physician · Orange, CA
• Dr. Ailin Barseghian El-Farra, MD Cardiovascular Disease Physician · Orange, CA
• Michael Cheng, DO Rheumatology Physician · Orange, CA
• Dr. Lillian Chow, MD Critical Care Medicine (Internal Medicine) Physician · Orange, CA
• Dr. Nicole Foley, MD Hematology & Oncology Physician · Orange, CA
• Christopher Gabriel, MD Integrative Medicine Physician · Orange, CA
• MS. Chinsuk Kim, MSN/NP Nurse Practitioner · Orange, CA
• Mrs. Christina Marie Kirk, NP Nurse Practitioner · Orange, CA
• Andrew B Lee, MD Pediatrics Physician · Irvine, CA
• MS. Michelle Luhan-Nordberg, MS, RD, CDN Registered Dietitian · Irvine, CA
• Harry Nguyen, DO Internal Medicine Physician · Orange, CA
• Madeleine V Pahl, MD Nephrology Physician · Orange, CA

Other providers in Corona

• Dr. Gregory Alan Gilmore, DO

  Individual Hematology & Oncology Physician · NPI 1205271640

  320 W 6th St, Corona, CA 92882-3349 · (951) 898-2828

• Los Angeles Hematology Oncology Medical Group

  Organization Hematology & Oncology Physician · NPI 1750101499

  260 E Ontario Ave Ste 101, Corona, CA 92879-3508 · (951) 284-0177

• Dr. Chih-Hong Young, MD

  Individual Hematology & Oncology Physician · NPI 1417919572

  900 S Main St Ste 109, Corona, CA 92882-3401 · (951) 272-0700