Executive Officers

Ernest A. Bates, M.D.

ERNEST A. BATES, M.D., Company founder, has served as Chairman of the Board and Chief Executive Officer since the Company’s incorporation. Dr. Bates is a member of multiple professional medical societies including several in his specialty. He is an Emeritus member of the Board of Trustees at Johns Hopkins University and the University of Rochester. Dr. Bates is a member of th... Moree Board of Overseers at UCSF School of Nursing and a former member of the Board of Trustees at UCSF Foundation and the California Higher Education Business Forum. In 1997 Dr. Bates was appointed by the Senate to serve as a member of the California High-Speed Rail Authority. Appointed by the Governor, Dr. Bates served as a member of the Board of Governors of California Community Colleges, the District 4 Medical Quality Review Committee, and the Professional Advisory Committee at the University of California Medical Centers where he was appointed by the Speaker of the Assembly. Dr. Bates previously served on the Magistrate Judge Merit Selection Panel. In 2000 Dr. Bates received the prestigious Kjakan Award for his contribution to the spirit of entrepreneurial capitalism. Dr. Bates founded American Shared Hospital Services in 1977. American Shared Hospital Services is a publicly traded healthcare company with corporate offices in San Francisco, California. Dr. Bates received his BA from Johns Hopkins University in 1958 and his MD degree from the University of Rochester School of Medicine in 1962. Dr. Bates completed a surgery internship at the Albert Einstein College of Medicine, Bronx Municipal Hospital Center in 1962. He has written chapters in the publication, Textbook on Experimental Brain Tumors and Black Related Diseases. Dr. Bates completed his Neurosurgery residence at the University of California Medical Center, San Francisco in 1971. Dr. Bates was board certified in neurological surgery in 1973. Less

Craig K. Tagawa

Mr. Tagawa joined American Shared in 1988 and has served as its Chief Operating Officer since 1999 and Chief Financial Officer since 1992. Additionally, he is GK Financing's Chief Executive Officer. Mr. Tagawa is the former Chair of the Industrial Policy Advisory Committee of the Engineering Research Center for Computer-Integrated Surgical Systems and Technology at The Johns Ho... Morepkins University. He received an undergraduate degree from the University of California at Berkeley and an MBA from Cornell University.Less

Ernest R. Bates

Mr. Bates, Vice President of Sales and Business Development since January 2007, previously served as an American Shared Director from 2004 until January 2007. He was Managing Director, Institutional Fixed Income Sales of HSBC Securities (USA) Inc. from 2003 to 2006 and was Managing Director, Head of Asian Product for HSBC from 1999 to 2003. From 1993 through 1999, Mr. Bates hel... Mored various positions with Merrill Lynch, last serving as Vice President, European Syndicate for Merrill Lynch International. He received his undergraduate degree from Brown University and an MBA from The Wharton Business School, and is the son of Founder Dr. Ernest A. Bates.Less

Willie R. Barnes

Mr. Barnes is Corporate Secretary for American Shared and served as a Director from 1984 to 2004. He is currently a Partner of Musick, Peeler & Garrett LLP. Formerly he was a Senior Partner of Manatt, Phelps, Rothenberg & Phillips. From 1975 to 1979, he served as Commissioner of Corporations, the state regulatory agency responsible for administering laws regulating specified fi... Morenancial institutions, including credit unions, industrial loan companies, consumer finance lenders, and commercial finance lenders, the California Corporate Securities Law and the Franchise Investment Law. He was a Director of Franchise Finance Corporation of America from 1994 to 2001 and a Director of Spirit Finance Corporation from 2003 to 2007 and chaired its Nominating and Governance Committee. Mr. Barnes received a Bachelor of Arts degree from the University of California in 1953 and a law degree from the UCLA Law School in 1959.Less

Board of Directors

Ernest A. Bates, M.D.


Daniel G. Kelly, Jr.

DANIEL G. KELLY, JR., was elected to the Board in 2016. Mr. Kelly was a partner of Davis Polk & Wardwell LLP, an international law firm, from 1999 to 2015, co-founding its Silicon Valley office in 1999. During his time at Davis Polk, Mr. Kelly had an extensive corporate practice representing companies, private equity funds and financial institutions in a broad array of complex transactions, and al... Moreso acted as a senior advisor to boards and special committees on numerous sensitive matters. Prior to joining Davis Polk, Mr. Kelly was a senior officer of a major investment banking firm, the chief legal officer of an NYSE-listed corporation and a partner involved in management of two other law firms. Mr. Kelly is a Trustee of Choate Rosemary Hall and is on the Board of Directors of Equality Now, a global organization dedicated to creating a world in which women and girls have the same legal rights as men and boys. Mr. Kelly received his B.A. in History from Yale University and his J.D. from Columbia University School of Law. Mr. Kelly is a member of the Board of Directors of Ares Capital Corporation, a specialty finance company listed on NASDAQ. Less

David A. Larson, M.D.

DAVID A. LARSON, M.D., PhD, FACR, FASTRO, was elected to the Board in 2011. He is professor emeritus of Radiation Oncology at the University of California, San Francisco. Dr. Larson is also currently employed as a radiation oncology physician at the Washington Hospital Healthcare System Gamma Knife Program. He is an internationally recognized authority on brain tumors and on central nervous syste... Morem and body radiosurgery, intensity modified radiotherapy, and highly conformal radiotherapy. He holds a PhD in High Energy Physics from the University of Chicago and an MD from the University of Miami School of Medicine. He completed his medical internship at the University of California, San Francisco and his radiation oncology residency training at Harvard Medical School, where he also served as attending physician and instructor. Dr. Larson has been a member of the UCSF academic faculty since 1986, leading to joint professorial appointments in the Departments of Radiation Oncology and Neurosurgery. He has authored more than 200 scientific papers, reviews, and book chapters. He was elected by his peers to the presidency of numerous professional societies, including the American Society for Therapeutic Radiology and Oncology (ASTRO), the Northern California Radiation Oncology Society (NCROS), and the International Stereotactic Radiosurgery Society (ISRS). He is a Fellow in the American College of Radiation Oncolgy (FACRO), the American College of Radiology (FACR), and the American Society for Radiology Oncology (FASTRO). He has been recognized as one of America's top doctors every year since 1991. Less

Sandra A.J. Lawrence

SANDRA A.J. LAWRENCE, was appointed to the Board in 2017. She was the Chief Administrative Officer and Executive Vice President of Children’s Mercy Hospitals and Clinics in Kansas City, Missouri from 2016 to 2019 and from 2005 to 2016 served as its Chief Financial Officer and Executive Vice President. Prior to her joining Children’s Mercy, Sandra served as CFO and SVP of Midwest Research Insti... Moretute (MRI), VP of Administration for Gateway, Director of MRI’s Statistics and Economics Center for Regional Development, and President of Stern Brothers Investment Bank. Ms. Lawrence served on the board of directors of Westar Energy, Inc., an electric utility company, from 2004-2018 and now serves on the board of its merged, successor company, Evergy [NYSE: EVRG]. Her current civic commitments include serving as Chair of the board of the National Association of Corporate Directors - Heartland Chapter and on the boards of the Hall Family Foundation, the Nelson-Atkins Museum of Art, Women Corporate Directors, Ms. Lawrence received her MBA from Harvard Business School, concentrating in the areas of finance and real estate, a Master’s of Architecture from the Massachusetts Institute of Technology, specializing in civil engineering and urban design, and an A.B. from Vassar College with a major in psychology and an emphasis in statistics.Less

S. Mert Ozyurek

SAIM MERT OZYUREK was elected to the Board in 2011. He is currently the president of Ozyurek A.S., a healthcare company in Turkey, and EKA, LLC, in the United States. After completing military service, he joined Ozyurek A.S., the family business as a sales manager for nine years before being appointed as the vice president. Mr. Ozyurek is an entrepreneur and an angel investor, and also a member... More partner in EWRS, LLC, the subsidiary that the Company developed for its operations in Turkey. He received a B.A. degree in Mining Engineering at Middle East Technical University in Ankara, Turkey. Less

Raymond Stachowiak

RAYMOND C. STACHOWIAK, joined the Board in 2009. He founded Shared Imaging, a preferred independent provider of CT, MRI and PET/CT equipment and services, in 1994 with the purchase of the assets of Shared Imaging Partners, L.P. He served as president and CEO of Shared Imaging since its inception until March 2013. In 2008, he sold 50% of his interest in Shared Imaging to Lubar Equity Fund and rema... Moreins its founder and 50% owner. He is the sole owner of RCS Investments, Inc. and manager of Stachowiak Equity Fund, both of which are private equity funds. He is also a director for Nano Gas Technologies, Inc. He received his undergraduate degree in Business from Indiana University in 1979 and received an MBA from Indiana University in 1985. Mr. Stachowiak previously obtained CPA (Certified Public Accountant), CPIM (Certification in Production and Inventory Management) and CIA (Certified Internal Auditor) certifications. Less