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Our Staff
Our staff is comprised of more than 70 volunteer physicians and nurses. Our experienced team members have worked for some of the most renowned medical institutions and healthcare providers, including:
University of California, San Francisco
Stanford University
John Muir
Kaiser Permanente
Sutter Health
St. Mary’s Medical Center
Cleveland Clinic
Last year, our volunteers served more than 8,500 hours. With a growing patient base, volunteer recruitment is always a priority of ours. We encourage talented physicians and medical staff to contact us for information on volunteer opportunities.
“We have an incredible staff, as well as many wonderful doctors and nurses who volunteer their time – it’s a great example of teamwork. Nothing would be accomplished or be effective here without their generosity and their commitment to helping those who need it most.”
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Staff Leadership
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
Jeff Ritterman, MD<br><em>Medical Director</em>
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Fr. Francisco Javier Diaz, MD<br><em>Physician</em>
Board Leadership
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Timothy McInerney, Esq, KM<br><b>President </b> <br><em> Shareholder, McInerney & Dillon</em>
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Louis M. Meunier, KM <br><b>Secretary </b> <br><em> Former Executive Vice President, Macy's </em>
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John Hallett, KM <br><b>Treasurer </b> <br><em> Retired Financial Services Executive, Bank of the West </em>
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L.J. Michael Lambert, KM <br><b>VP of External Affairs </b> <br><em> Retired Financial Services Executive, UBS</em>
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Elizabeth Bernard, Esq, DM<br><em> Attorney and Advisor
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Anne Brussok, DM - Ex Officio <br><em> Clinic Manager, Order of Malta Clinic of Northern California</em>
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
John Christian, Esq, KM — Ex Officio<br><em>Attorney, Executive Director, Real Property Support Corporation for the Archdiocese of San Francisco </em>
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
Sara K. Cumbelich, DM<br><em> Strategic Marketing & Advertising Consultant, SKC Communications</em>
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
William J. Cumbelich, KM <br><em> Executive Vice President, CBRE</em>
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
Dr. Dan L. Field, KM<br><em> Chief Medical Officer, MDstaffers</em>
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
Bridget McInerney Harris, Esq, DM<br><em> Attorney, Partner Jeffer Mangels Butler & Mitchell, LLP</em>
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Marty Karpiel, MPA, FACHE, FHFMA, KM<br><em> President, Karpiel Consulting Group/Emergency & Urgent Care Medicine</em>
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Charlotte Kiesel, DM<br><em> Retired, Small Business Owner</em>
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Dr. Michael J. Matly, KM<br><em> Co-founder and Managing Partner of 111° West Capital</em>
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John Rengel, KM — Ex Officio<br><em>Retired Financial Officer, St. Mary’s College of California</em>
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Mary M. Rudolph, NP, DM<br><em> Retired Nurse Practitioner, Obstetrics and Gynecology, Stanford University Health Care</em>
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Hon. Kevin V. Ryan, KM<br><em> Retired U.S. Attorney, Northern District of California</em>
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Dr. William F. Sheridan, KM<br><em> Neurosurgeon, Kaiser</em>
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Kathleen C. Toney, NP, DM<br><em> Retired Nurse Practitioner, Women’s Health Care</em>
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Dr. Thomas Wallace, KM<br><em>Retired Neurologist</em>
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Charles V. Wirth, KM<br><em> Retired Healthcare Executive, CEO, Sutter Physician Services</em>