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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.”

Staff Leadership
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Jeff Ritterman, MD
Medical Director
Medical Director
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Fr. Francisco Javier Diaz, MD
Physician
Physician
Board Leadership
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Timothy McInerney, Esq, KM
President
Shareholder, McInerney & Dillon
President
Shareholder, McInerney & Dillon
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Louis M. Meunier, KM
Secretary
Former Executive Vice President, Macy's
Secretary
Former Executive Vice President, Macy's
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John Hallett, KM
Treasurer
Retired Financial Services Executive, Bank of the West
Treasurer
Retired Financial Services Executive, Bank of the West
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L.J. Michael Lambert, KM
VP of External Affairs
Retired Financial Services Executive, UBS
VP of External Affairs
Retired Financial Services Executive, UBS
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Elizabeth Bernard, Esq, DM
Attorney and Advisor
Attorney and Advisor
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Anne Brussok, DM - Ex Officio
Clinic Manager, Order of Malta Clinic of Northern California
Clinic Manager, Order of Malta Clinic of Northern California
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John Christian, Esq, KM — Ex Officio
Attorney, Executive Director, Real Property Support Corporation for the Archdiocese of San Francisco
Attorney, Executive Director, Real Property Support Corporation for the Archdiocese of San Francisco
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Sara K. Cumbelich, DM
Strategic Marketing & Advertising Consultant, SKC Communications
Strategic Marketing & Advertising Consultant, SKC Communications
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William J. Cumbelich, KM
Executive Vice President, CBRE
Executive Vice President, CBRE
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Dr. Dan L. Field, KM
Chief Medical Officer, MDstaffers
Chief Medical Officer, MDstaffers
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Bridget McInerney Harris, Esq, DM
Attorney, Partner Jeffer Mangels Butler & Mitchell, LLP
Attorney, Partner Jeffer Mangels Butler & Mitchell, LLP
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Marty Karpiel, MPA, FACHE, FHFMA, KM
President, Karpiel Consulting Group/Emergency & Urgent Care Medicine
President, Karpiel Consulting Group/Emergency & Urgent Care Medicine
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Charlotte Kiesel, DM
Retired, Small Business Owner
Retired, Small Business Owner
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Dr. Michael J. Matly, KM
Co-founder and Managing Partner of 111° West Capital
Co-founder and Managing Partner of 111° West Capital
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John Rengel, KM — Ex Officio
Retired Financial Officer, St. Mary’s College of California
Retired Financial Officer, St. Mary’s College of California
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Mary M. Rudolph, NP, DM
Retired Nurse Practitioner, Obstetrics and Gynecology, Stanford University Health Care
Retired Nurse Practitioner, Obstetrics and Gynecology, Stanford University Health Care
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Hon. Kevin V. Ryan, KM
Retired U.S. Attorney, Northern District of California
Retired U.S. Attorney, Northern District of California
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Dr. William F. Sheridan, KM
Neurosurgeon, Kaiser
Neurosurgeon, Kaiser
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Kathleen C. Toney, NP, DM
Retired Nurse Practitioner, Women’s Health Care
Retired Nurse Practitioner, Women’s Health Care
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Dr. Thomas Wallace, KM
Retired Neurologist
Retired Neurologist
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Charles V. Wirth, KM
Retired Healthcare Executive, CEO, Sutter Physician Services
Retired Healthcare Executive, CEO, Sutter Physician Services