Hoyt Y. Sze

Hoyt Sze is a partner in the Governmental Practice in the firm's San Francisco office and a member of the firm’s Healthcare Team.  

Areas of Practice

Hoyt is a seasoned attorney with over 25 years of experience. He has represented health systems and academic medical centers as outside and in-house counsel, as well as serving as Chief Compliance and Privacy Officer. Hoyt specializes in healthcare fraud investigations and litigation, including related to the federal and California False Claims Act, anti-kickback laws and the Stark Law, and has dealt with federal and state agencies including the U.S. Department of Justice on subpoenas, civil investigative demands, self-disclosures and other enforcement matters. He also has advised higher education institutions and health providers in connection with complex privacy matters including issues concerning clinical artificial intelligence and “big data,” research security investigations including issues concerning federal grant proposal “other support” non-disclosure and emerging technologies, and major cybersecurity incidents.

Prior to joining the firm, Hoyt served as Co-Interim Deputy General Counsel at the University of California’s Office of General Counsel Health Affairs, Privacy & Data Protection Group where he led the University’s response to complex health investigations, privacy, cybersecurity and research security matters and was one of two principal legal advisors for the UC Board of Regents Health Services Committee.

Articles

Healthcare Law Blog Posts

• "Potential False Claims Act Liability for Providers of Gender-Affirming Care for Minors," July 29, 2025
• "CMS Administrator Outlines His Vision for CMS at NFP Healthcare Investors Conference," May 22, 2025

Media Mentions

Speaking Engagements

• Moderator, “The Importance of In-House Coordination During a Cyber Event,” American Health Law Association, June 2025 
• “Insider Media Secrets & Powerful Truths: The Ethics of Communicating in High-Profile Litigation,” Asian American Bar Association of the Greater Bay Area, January 2025
• “Managing Global Engagements in the Era of Research Security,” UC Ethics Compliance and Audit Symposium, August 2024
• “Legal Counsel’s Role in Investigations,” UC Ethics Compliance and Audit Symposium, August 2024
• “Planning for the Future: Staff and Resource Maximization,” American Health Law Association, June 2023
• “Protecting UC Data Through Contract Negotiations,” UC Ethics Compliance and Audit Symposium, November 2022
• “Managing Conflicts Across the Institution: Reducing Silos to Mitigate Risk,” American Health Law Association, June 2021
• “Health Compliance’s Role in Multi-Unit, Cutting Edge AMC Investigations,” Health Care Compliance Association, April 2021
• Moderator, “Case Study on FBI Investigation Involving Foreign Influence at The Ohio State University,” UC Research Security Virtual Symposium, January 2021
• “Foreign Influence and NIH Policies: A Deeper Dive,” American Health Law Association, January 2020
• “Undue Foreign Influence in Federally Funded Research: The Threats, the Response, the Policy Solution,” American Health Law Association, January 2020
• “Controlled Substances Regulation for Clinical and Research Use,” UC Ethics Compliance and Audit Symposium, October 2019
• “Marketing Do’s and Don’ts for Healthcare Systems,” California Society for Healthcare Attorneys, April 2018

Events

Memberships

Member, Organizing Committee for In-House Counsel Program, American Health Lawyers Association, 2022-Present