Daniel P. Hsu, MD

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.

• Kaiser Foundation Hospital - Antioch Hospital · Antioch, CA · listed as Kaiser Foundation Hospitals
• Kaiser Foundation Hospital - Redwood City Hospital · Redwood City, CA · listed as Kaiser Foundation Hospital

Colleagues at Permanente Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10941 clinicians in the practice; 12 are shown here.

• Michelle S. Barry, MD Vascular & Interventional Radiology Physician · San Francisco, CA
• Priya Gulati Brink, MD Anatomic Pathology Physician · Sacramento, CA
• Rachel K. Dong, MD Obstetrics & Gynecology Physician · Elk Grove, CA
• Richard G. Lasslo, MD Internal Medicine Physician · Vacaville, CA
• Negean Mahmoudi, MD Hospitalist Physician · Oakland, CA
• MS. Olga Maxwell, CRNA General Acute Care Hospital · Roseville, CA
• Dr. Loan Phi Ngo, MD Internal Medicine Physician · San Francisco, CA
• David E Ruiz, MD Emergency Medicine Physician · Dalton, GA
• Natalia Shapiro, MD Family Medicine Physician · Petaluma, CA
• Afshan Umair, MD Internal Medicine Physician · Pleasanton, CA
• Elizabeth M. Watson, MD Orthopaedic Surgery Physician · South San Francisco, CA
• Dr. Michael Chu Woo, OD Optometrist · Fremont, CA

Other providers in Cleveland

• Ronnie D. Derrwaldt, DO

  Individual Nuclear Imaging & Therapy Physician · NPI 1629183975

  10701 E Blvd, Cleveland, OH 44106-1702 · (216) 791-3800

• Vishala G Reddy, MD

  Individual Nuclear Imaging & Therapy Physician · NPI 1841201175

  10701 E Blvd, Cleveland, OH 44106-1702 · (216) 791-3800