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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 is pleased to announce that its physical offices have reopened. While the health and safety of our clients, employees, and families, remain our top priority, HeplerBroom attorneys and staff are returning to our offices on full-time or modified schedules. Our offices are open to visitors and clients with scheduled appointments, with appropriate screening of visitors and social-distancing protocols. HeplerBroom will continue to follow CDC recommendations for cleaning and sanitizing.

We are very proud of the dedicated efforts of our attorneys and staff to provide great service and work product to our clients during the pandemic. This would not have been possible without the incredible support provided by the HeplerBroom IT Department and other essential personnel who supported our personnel and clients from the office locations while the rest of our teams worked remotely.

If you have questions about visiting our offices, please do not hesitate to contact us. We look forward to seeing you in person again in the near future.