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Chicago, IL



  • The John Marshall Law School, n/k/a UIC John Marshall Law School, J.D., with Distinction,1986
  • Ripon College (Ripon WI), B.A. in Criminal Justice, cum laude, 1983


  • Illinois
  • Illinois Supreme Court
  • U.S. District Courts for the
    • Federal Trial Bar
    • Northern and Central Districts of Illinois

Practice Description

Anne M. Oldenburg focuses her practice on the defense of healthcare professionals. She has tried numerous professional liability cases to successful verdict and handled many cases on appeal. She also represents professionals before state licensing boards. She is a frequent presenter on legal and risk management topics in healthcare.

Before joining HeplerBroom, Ms. Oldenburg was an equity partner in the Chicago firm of Hay & Oldenburg, LLC, a certified minority-owned business. Previously, she was a judicial clerk for the Honorable Ben K. Miller of the Illinois Supreme Court and for the Honorable John T. McCullough of the Fourth District, Appellate Court of Illinois.

Bar/Professional Associations

  • American Society of Healthcare Risk Managers
  • Association of Defense Trial Attorneys
  • Chicagoland Healthcare Risk Management Society
  • Defense Research Institute
    • Illinois State Representative (2012-2013)
    • Medical Liability Committee
    • Long-Term Care Committee
  • Federation of Defense & Corporate Council
  • Illinois Association of Defense Trial Attorneys
    • Board of Directors
    • Diversity in Participation Committee, Chair
    • Professional Liability Committee
    • Co-Chair, IDC 50th Anniversary Gala (2014)
    • Executive Board President (2011-2012)
    • Executive Board President-Elect (2010-2011)
    • Executive Board 1st Vice President (2009)
    • Executive Board 2nd Vice President (2008)
    • Executive Board Secretary-Treasurer (2007)
    • Co-Chair, Fall Seminar Committee (2000)
    • Chair, Fall Seminar Committee (2001)
    • Faculty, Trial Academy

Awards, Honors & Distinctions

  • AV Preeminent® Attorney by Martindale-Hubbell
  • Best Lawyers in America (2020, 2021)
  • Chicago Women in Law
    • Chicago Lawyer (2002)
  • Fortress Insurance Company
    • Outstanding Service Award (2007)
  • Illinois Association of Defense Trial Attorneys
    • Distinguished Member Award (2016)
    • President’s Commendation for Co-Chair, IDC 50th Anniversary Gala (2014)
    • President’s Commendation for Fall Seminar (2001)
  • Illinois Leading Lawyer (2013-2020)
    • 40 Illinois Attorneys Under 40 to Watch (2001)
  • Illinois State Bar Association
    • Participant, Allerton Conference on Jury Reform (2006)
  • Illinois Super Lawyer (2005-2021)
    • Top 50 Female Lawyers in Illinois (2006-2008)
  • Jury Verdict Reporter
    • Trial Lawyer Excellence Award for Outstanding Defense Verdict – Dental Malpractice (2012)
  • OMSNIC (Oral and Maxillofacial Surgeons National Insurance Company)
    • Continuing Excellence Award (2012)
    • Defense Star Award (2002-2003)

Law School Honors/Involvement

  • Moot Court Council

Published Legal Writing

  • “Web Reputation: Setting a Patient’s Expectations,” OMS Guardian (2016). (Co-author)
  • “Web Reputation: Setting a Patient’s Expectations,” DDS Guardian (2016). (Co-author)
  • “Non-Party Treating Physicians: Protection of Patient Confidentiality,” PIAA Quarterly (2013). (Co-author)
  • “Dental Malpractice: Running From Risk,” Dentaltown (online audio course article) (2009).
  • “National Practitioner’s Data Bank” (Woman Dental Journal, July 2007).

For a complete list of Published Legal Writing, click here.

Legal Lectures & Presentations

  • “Strategies for the Patient Relationship,” The Aspects of Dental Practice: A Series (Charleston SC, 2017).
  • “Social Media in the Professional Liability Arena,” Insurance Law and Coverage Seminar (Oak Brook IL, 2017).
  • “Depositions: The Good, The Bad and The Ugly,” Infinity Healthcare Management (Chicago IL, 2017).
  • “Caution + Control: Reducing Employment Liability,” Chicago Dental Society Midwinter Meeting (Chicago IL, 2017).
  • “Strategies for the Patient Relationship,” Dental Implant Mini Residency (Atlanta GA, 2017).

For a complete list of Legal Lectures & Presentations, click here.

Representative/Recent Case Results

  • Dental malpractice case involving full mouth reconstruction with implants. Verdict in favor of Plaintiff, but only awarded her dental expenses and found her 50% contributorily negligent. Total verdict was $35,436.20. (Cook County IL, August 2015)
  • Dental malpractice case involving dental implants for maxillary reconstruction. Verdict for Defendant. (Cook County IL, June 2015)
  • Medical malpractice case against hospital for wrongful death of patient who developed pressure ulcers and became septic. Verdict in favor of Plaintiff in the amount of $215,000. (Cook County IL, February 24-March 6, 2015)
  • Medical malpractice case against clinic for family practice physician’s alleged failure to diagnose ear infection resulting in hearing loss. Verdict for Defendant. (Cook County IL, June 2014)
  • Dental malpractice case claiming negligent tooth extraction resulting in jaw fracture and sinus perforation. The verdict was returned in favor of the Plaintiff in the amount of $95,160.75. (Cook County IL, May 2013)

For a complete list of Representative/Recent Case Results, click here.




HeplerBroom LLC COVID-19 Response

HeplerBroom has been diligently working on its response and continuity plan to the COVID-19 pandemic in order to keep the health and safety of our employees, their families, and our clients as our top priority.

To help ensure everyone's continued health and well-being, effective March 17, 2020, all attorneys and staff began working remotely. We continue to assess the situation and will return to our physical offices when appropriate.

To ensure this, the firm has identified essential personnel in each office who will make certain that critical firm functions that cannot be done remotely continue to be handled. We have put in place protocol for those essential personnel to make sure they are keeping healthy per the CDC cleaning and sanitizing recommendations. All teams have back-up personnel and procedures that we will follow to make sure all deadlines are met and clients receive the same great service and work product that we have always been proud to provide.

HeplerBroom's IT department has been working hard to make sure all remote employees are set up with equipment and access from home to limit disruption to our clients. Maintaining security and confidentiality has remained, and will continue to remain, at the forefront of all processes and procedures, at all levels throughout the firm.

The firm has created emergency communication measures to communicate any changes to this plan to employees and are communicating on a regular basis with any and all new resources and helpful information during this uncertain time.

During these fluid and unpredictable times, HeplerBroom will continue its commitment to great service and results for our clients, all while keeping safe and healthy.

Wishing you and your families good health.

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