Dr. William Russell Ryan, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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.

• California Pacific Medical Center- Van Ness Campus Hospital · San Francisco, CA · listed as California Pacific Medical Center
• California Pacific Medical Ctr-Davies Campus Hosp Hospital · San Francisco, CA · listed as Cpmc
• Ucsf Medical Center Hospital · San Francisco, CA

Colleagues at Sutter Bay Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3762 clinicians in the practice; 12 are shown here.

• Abren Dejenie Belay, MD Hospitalist Physician · Mountain View, CA
• Ori-Michael Johanan Benhamou, MD Psychiatry Physician · Mountain View, CA
• Meredith Brown, MFT Marriage & Family Therapist · Palo Alto, CA
• Dr. Kristine Joy Dabu, AUD Audiologist · Palo Alto, CA
• Dr. Jared James Herr, MD Cardiovascular Disease Physician · San Francisco, CA
• Margaret Kirkham, RN, MSN, FNP Family Nurse Practitioner · Albany, CA
• Dr. Carl Brandon Lindberg, DPM Foot & Ankle Surgery Podiatrist · Santa Cruz, CA
• Blake Mastin Read Surgery Physician · Burlingame, CA
• Dr. Heather Nichole Romine, MD Internal Medicine Physician · Antioch, CA
• Mrs. Joycelynn S Shiu, PA-C Medical Physician Assistant · North Highlands, CA
• Dr. Christian Spies, MD Cardiovascular Disease Physician · Burlingame, CA
• Joy Tung Family Medicine Physician · Fremont, CA

Other providers in San Francisco

• Dr. Dana Kristopher Petersen, MD

  Individual Plastic Surgery within the Head & Neck (Otolaryngology) Physician · NPI 1568783470

  3838 California St Rm 505, San Francisco, CA 94118-1507 · (415) 751-4914

• Steven Howard Sloan, MD

  Individual Plastic Surgery within the Head & Neck (Otolaryngology) Physician · NPI 1932191285

  1 Shrader St Ste 510, San Francisco, CA 94117-1016 · (415) 379-9900