Dr. Walailuk Chaiyarat, 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.

• John Muir Medical Center - Concord Campus Hospital · Concord, CA · listed as John Muir Medical Ctr Concord Campus
• Providence Queen Of The Valley Medical Center Hospital · Napa, CA · listed as St Joseph Health Northern California, LLC
• Sutter Medical Center, Sacramento Hospital · Sacramento, CA · listed as Sutter Medical Center Sacramento
• Sutter Solano Medical Center Hospital · Vallejo, CA
• John Muir Home Health Services Home health agency · Concord, CA · listed as John Muir Health
• Mare Island Home Health Inc Home health agency · Fairfield, CA
• John Muir Medical Center - Walnut Creek Campus Hospital · Walnut Creek, CA

Colleagues at John Muir Physician Network

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 486 clinicians in the practice; 12 are shown here.

• Andrew J Benn, MD Interventional Cardiology Physician · Walnut Creek, CA
• Dr. Gigi Qiqi Chen, MD Hematology & Oncology Physician · Pleasant Hill, CA
• David Clemons, MD Internal Medicine Physician · Walnut Creek, CA
• Miss. Sweta L Ghodasara, MD Internal Medicine Physician · Concord, CA
• Dr. Juana Gonzalez Aguirre, MD Internal Medicine Physician · Concord, CA
• Charleen Lee Kim, MD Surgery Physician · Walnut Creek, CA
• Ashley E Mills, MD Internal Medicine Physician · Concord, CA
• Dr. Smrutirekha Misra, MD Internal Medicine Physician · Pleasanton, CA
• Mrs. Marjan Naraghi-Arani, DO Family Medicine Physician · San Ramon, CA
• Dr. Ammar Qoubaitary, MD Endocrinology, Diabetes & Metabolism Physician · San Ramon, CA
• Monica Nicole Gaines Stiles, DO Hospitalist Physician · Walnut Creek, CA
• Dr. Grace Talento, MD Family Medicine Physician · Walnut Creek, CA

Other providers in Concord

• Dr. Sudhathi Chichili, MD

  Individual Hematology & Oncology Physician · NPI 1730394891

  2571 Park Ave, Concord, CA 94520 · (925) 674-2100

• Dr. Lesley C Martin, MD

  Individual Hematology & Oncology Physician · NPI 1114900834

  2571 Park Ave, Concord, CA 94520-1901 · (925) 674-2100

• Beverly F. McLeod, MD

  Individual Hematology & Oncology Physician · NPI 1851465165

  2571 Park Ave, Concord, CA 94520-1901 · (925) 674-2110

• Mount Diablo Solano Oncology Group Medical Associates

  Organization Hematology & Oncology Physician · NPI 1427361104

  2571 Park Ave, Concord, CA 94520-1901 · (925) 674-2100