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Hanson Bridgett LLP

Ann Mary Olson

Ann Mary Olson

Senior Counsel


  • Health Care

WSG Practice Industries


Hanson Bridgett LLP
California, U.S.A.


Ann Mary handles civil and regulatory litigation for health care industry clients and providers of long-term care services. She represents health care providers and senior care communities in administrative proceedings and litigation in a wide variety of matters, including appeals of regulatory citations, deficiencies, and licensure actions. Ann Mary handles cases through all phases of litigation: discovery, law and motion practice, mediation, arbitration, administrative hearings, trials, writs, and appeals.

Ann Mary also advises medical staffs, medical groups, and hospitals on credentialing and peer review matters. She represents medical staffs in peer review hearings and defends hospitals, medical staffs, and medical staff leaders in litigation arising from peer review activities.

Ann Mary has experience defending state and federal class actions, including securities fraud and consumer products litigation. She has also assisted individuals and entities in connection with SEC inquiries and investigations.

Bar Admissions

  • California
  • Fort Peck Tribal Court, Montana


J.D., University of California, Berkeley School of Law (2013)
A.B., Harvard College (2008)
Professional Career

Professional Associations

  • Barrister's Club of the Bar Association of San Francisco, Health Law Section, Chair

Professional Activities and Experience

  • California Lawyers Association, Wiley W. Manuel Pro Bono Legal Services Award (2020)


"New Timing Requirements for Certain California Eviction Actions Take Effect September 1," co-author, Senior Housing and Care Law Alert (August 2019)

"California Medical Staff Reporting Update:
New Penalties For Failure To Report Go Into Effect January 1, 2018," co-author, Health Care Law Alert (November 2017)

"CMS Reverses Its Position Regarding Arbitration Agreements in Long-Term Care," co-author, Senior Housing and Care Law Alert (June 2017)
"District Court Orders CMS in Jimmo Settlement to Implement Maintenance Coverage Standard for SNF Services," co-author, AHLA Member Alert (February 2017)

WSG's members are independent firms and are not affiliated in the joint practice of professional services. Each member exercises its own individual judgments on all client matters.

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