1661 Worcester Road, Suite 204, Framingham, MA 01701  •  Phone: 508-232-6267
1661 Worcester Road, Suite 204, Framingham, MA 01701


Parenteau & O'Hara, P.C. - New England Subrogation
  • 1661 Worcester Road, Suite 204, Framingham, MA 01701  •  Phone: 508-232-6267


Our People

Attorney Diana D. O'Hara, New England Subrogation

Diana D. O'Hara, Partner

Attorney Diana D. O'Hara, New England Subrogation

An attorney with 15 years of trial practice experience, Diana has focused on all aspects of insurance related claims and criminal prosecutions. She has practiced in all state trial courts, as well as federal courts.

Prior to becoming a civil trial attorney handling insurance related matters, Diana was an Assistant District Attorney in Suffolk County, Massachusetts.

For the last several years, Diana has handled subrogation matters for numerous national insurance companies.

She has extensive experience handling auto, products liability, construction defect, fires, floods, workers' compensation, actions against municipalities, state and federal agencies, building collapses, boiler, electrical failures, grill malfunctions, auto manufacturing defects, PIP/MEDPAY, trucking accidents, license suspensions, and marine claims.

Educational Activities & Presentations

Diana is an active member of the National Association of Subrogation Professionals (NASP). She has assisted in organizing educational seminars for the New England Chapter of NASP including its live auto burn in 2013, and its live structure burn in 2014. She is currently co-chair of the New England Chapter of NASP.

Diana has been a lecturer at the New England Chapter of the International Association of Special Investigation Units annual seminar and is a tutor aiding students prepare to take the Massachusetts Bar Examination. She is also an active member of the Women's Bar Association in Massachusetts.


This website is not intended to constitute legal advice or the provision of legal services. By posting or maintaining this website and its contents, Parenteau & O'Hara, P.C. does not intend to solicit legal business from clients located in states or jurisdictions where Parenteau & O'Hara, P.C. or its individual attorneys are not licensed or authorized to practice law. Some links within this website may lead to other websites. Parenteau & O'Hara, P.C. does not necessarily sponsor, endorse or otherwise approve of the materials appearing in such sites.

Contact Diana

  • Phone: 508-232-6267 ext. 102
  • Fax: 508-232-6270
  • Email: do@nesubro.com



Diana's Education

  • Suffolk University
    Masters of Science in Criminal Justice, 2001
  • New England Law / Boston
    Juris Doctorate, 1998
  • Wheaton College
    B.A. 1995

Bar / Court Admissions

  • Admitted to Massachusetts Bar - 1999
  • Admitted to US District Court for Massachusetts - 2003
  • Admitted to New Hampshire Bar - 2009
  • Admitted to Maine Bar - 2009
  • Admitted to US District Court for New Hampshire - 2010
  • Admitted to the Rhode Island Bar - 2014
  • US District Court for Rhode Island - 2014
  • US District Court for Maine - 2014

Professional Memberships

  • Massachusetts Women's Bar Association
  • Massachusetts Bar Association
  • Maine Bar Association
  • Rhode Island Bar Association
  • New Hampshire Bar Association