Executive Team

David Klein, CEO

David Klein, MD, MBA
Chief Executive Officer
MarinHealth

David Klein, MD, MBA, brings an especially informed perspective to his position as CEO of MarinHealth, having spent the first fourteen years of his career working as a general surgeon. Since leaving the operating room, Dr. Klein has built a long, successful career as a healthcare executive and hospital CEO. His open leadership style fosters communication and collaboration between the hospital staff, the administration, and the community at large.

Prior to his position at MarinHealth Medical Center, Dr. Klein served as President and CEO of Dignity Health’s two San Francisco-based hospitals: Saint Francis Memorial Hospital and St. Mary’s Medical Center. At Dignity Health, he oversaw a great deal of positive change, including a turnaround to profitability, multiple Healthgrades Five Star and Excellence Awards, the development of a Transgender Health Program, the establishment 14 Bay-Area based urgent care centers, and the launch of the new Bothin Burn Center, the largest burn unit in Northern California.

Before joining Dignity Health, Dr. Klein was Chief Operating Officer and then President of the Baylor Scott & White Health All Saints Medical Center in Fort Worth, Texas. Under his stewardship, the hospital received many accolades for service line excellence and overall quality, including top hospital rankings in US News and World Report. Prior to his role at Baylor, Dr. Klein served as Administrator of Presbyterian Hospital of Denton in Denton, Texas, and as Chief Executive Officer of Cedar Park Regional Medical Center in Austin, Texas.

Dr. Klein has sat on numerous community boards, from the American Heart Association, March of Dimes, and American Cancer Society to the Fort Worth Chamber of Commerce. He is the current Chair of the San Francisco Section of the Hospital Council of Northern and Central California and a member of the San Francisco Marin Medical Society.

Dr. Klein received his bachelor’s degree from the University of Southern California, his medical degree from the University of New Mexico, and his master’s degree in Business Administration from the University of California, Irvine.

Andrew Apolinarski, MSN, RN, CNL

Andrew Apolinarski, MSN, RN, CNL
Chief Nursing Officer
MarinHealth Medical Center

Andrew Apolinarski, MSN, RN, CNL, has more than twenty-five years of clinical, teaching and nursing leadership experience in acute care facilities in California, primarily in critical care.

He has served at MarinHealth Medical Center for almost ten years, most recently as Executive Director of Nursing Services and prior to that as Director of Critical Care Services. Before coming to MarinHealth, Andrew held nursing leadership and clinical positions in several San Diego area hospitals, including Scripps Memorial Hospital, Palomar Health and Tri-City Medical Center.

Andrew received his BSN and MSN from California State University in Southern California.

Eric Brettner

Eric Brettner
Chief Financial Officer
MarinHealth Medical Center

Eric Brettner has more than twenty years of experience in healthcare finance, operations, process improvement and change management. Prior to joining MarinHealth, Eric was a regional CFO for a region for PeaceHealth in Bellingham, WA. Prior to that, he served in a number of positions with Dignity Health, including Senior Director of Finance and Chief Financial Officer for the Bay Area Service Area. He has also worked with HCA, Good Samaritan Health Systems and Alta Bates. Eric started his finance career with Arthur Andersen & Co, an international public accounting firm.

Eric holds a BS in Business Administration, Accounting & Finance from the University of California, Haas School of Business and an MBA from Saint Mary’s College of California.

Mary Friedman

Mary Friedman
Chief Strategy Officer
MarinHealth

As the Chief Strategy Officer at MarinHealth, Mary leads transformational growth strategies, develops and structures partnerships, and spearheads new service development and physician recruitment for the enterprise.

Prior to joining MarinHealth in 2010, Mary worked in pricing strategy for UC San Diego Health System and in management consulting at Accenture in the Health and Life Sciences Consulting Practice where she collaborated with payers and providers across the county.

Mary holds a bachelor’s degree from UC Berkeley in Economics and Political Science and a master’s degree from the Harvard T.H. Chan School of Public Health in Healthcare Policy and Management.

Liz Kolcun

Liz Kolcun
Chief Development Officer
MarinHealth Foundation

Liz Kolcun, an accomplished healthcare philanthropy professional, joined the MarinHealth Medical Center team in May 2016. Previously, Kolcun served as Chief Development Officer for the Palo Alto Medical Foundation (PAMF) where she led the philanthropy and annual fundraising programs. Earlier in her career, Kolcun managed all aspects of major gifts fund development at California Pacific Medical Center Foundation. Over her fifteen-year career in healthcare philanthropy, she has held responsibility for capital campaigns, individual major and principal gifts, planned gifts, grant writing, direct mail, event planning and philanthropy communications.

Kolcun is a graduate of University of Florida, in Gainesville, Florida.

Colin Leary

Colin Leary
General Counsel
MarinHealth

Colin Leary serves as General Counsel and oversees all legal affairs for MarinHealth Medical Center and MarinHealth Medical Network. Colin is a healthcare business attorney with extensive experience advising hospitals, health systems, physicians, management companies, and health care technology companies on a broad range of legal issues. He is a specialist in the structuring of mergers, acquisitions, joint ventures, and other affiliations, as well as the design of physician alignment strategies and compliance with privacy, fraud and abuse, and other industry regulations.

Prior to joining MarinHealth in 2021, Colin served as Chief Legal Officer of Altais, a healthcare management services and technology company, and as hospital counsel to the University of California, San Francisco. He came to UCSF from private practice as a healthcare transactional attorney at Jones Day, an international law firm.

Colin is a graduate of the University of Michigan Law School and DePauw University, and he is a member of the State Bar of California.

Eugene Lewis

Eugene Lewis, EMBA, SPHR
Chief Human Resources Officer
MarinHealth Medical Center

Eugene joined our organization in 2014 as the lead for our Benefits team. He was promoted to Human Resources Director in June 2017. He has since served as a subject matter expert for HR policies and procedures and has led a number of initiatives in the area of benefits and leave of absence management, Employee & Labor Relations group negotiation, and was instrumental in developing HR responses to emergencies that affected our staff, including PSPS power shut offs, regional fire emergencies and of course, COVID related issues.

Eugene comes to this new role with fifteen years of human resources experience and holds dual Bachelor of Arts degrees in Sociology and African American Studies from the University of California, Davis and an Executive Master’s degree in Business Administration from California State University, Sacramento. He is certified as a Senior Professional of Human Resources [SPHR].

Jennifer Schaab, President, MarinHealth Medical Network

Jennifer Schaab, MBA, MPH
President
MarinHealth Medical Network

Jennifer Schaab is an innovative health care leader passionate about advancing patient-centric care. With more than 20 years of progressive leadership experience, she brings proven performance in network development and growth, mergers and acquisitions, integration, strategic planning, operations, financial performance improvement, and developing high-caliber physician networks. In her role as President, Jennifer is accountable for a wide range of initiatives, including strategic growth, operations, financial performance, quality, and technology implementation.

Her experience prepares her well for this role. She served as GVP, Enterprise Strategy, at SCA/Optum Health. Prior to her work with Optum, Jennifer served as Chief Operations Officer for the Physician Enterprise at Providence Health and Dignity Health, with responsibility for their medical networks, IPAs, and all Ambulatory services. She also has experience with large university settings and private technology firms. She has successfully led clinic growth strategies, improved physician and patient engagement, launched clinical improvement programs, developed employee retention and physician burnout initiatives, and launched new technology initiatives that drove new growth, improved patient satisfaction, and improved quality of care.

Jennifer holds a Master’s degree in Public Health from the University of Southern California, a Master’s degree in Business Administration from Pepperdine University, and a Bachelor of Science in Biology from the University of California, Los Angeles.

Karin Shavelson, MD, FAAP

Karin Shavelson, MD, FAAP
Chief Medical Officer
MarinHealth Medical Center

With over fourteen years of extensive medical and administrative experience from Kaiser Permanente, Dr. Karin Shavelson joined MarinHealth in 2019 as the Medical Director of the Pediatric Hospitalist group and she will continue to support our Women, Infant and Children division in this role. She is also one of our leaders in our response to the COVID-19 pandemic. Dr. Shavelson also has clinical privileges in Pediatrics at the University of California, San Francisco. While with Kaiser Permanente, Dr. Shavelson served in several leadership roles, such as Chief of Inpatient Pediatric & Neonatal Services, and was also honored by her colleagues and elected to the Medical Executive Committee (MEC), including service as President of MEC. During her tenure with Kaiser Permanente, Dr. Shavelson participated in many educational courses, including completing the Institute for Healthcare Improvement Patient Safety Officer course.

Dr. Karin Shavelson has over fifteen years clinical experience as a Board Certified Pediatric Hospitalist, including one year as a Pediatric Critical Care Fellowship at Stanford/Lucille Packard Children’s Hospital. She received her medical degree from the University of California, Davis School of Medicine and then completed her residency and Chief Residency in Pediatrics at the University of California, San Francisco.