June 13, 2019

If you have had your blood, urine or any other medical testing processed through LabCorp or Quest Diagnostics and/or received any notice of over-due payment relating to these services from American Medical Collections Agency (“AMCA”), your personal information may have been compromised by a recent data breach of AMCA.

The data breach involved the theft of consumer’s personal information, including names, addresses, dates of birth and balance information.

More than 19 million consumers of LabCorp and Quest Diagnostics customers may have been compromised.

Cohen Milstein’s Consumer Protection practice is investigating the AMCA data breach impacting LabCorp and Quest Diagnostics consumers.

Both LabCorp and Quest Diagnostics announced their respective data breaches in filings with the U.S. Securities and Exchange Commission on the weeks of June 10, 2019 and June 3, 2019, respectively.

According to both SEC filings, the breach occurred to AMCA between Aug. 1, 2018, and March 30, 2019.

If you are a patient or customer of LabCorp or Quest Diagnostics and you believe your personal information may have been compromised and you are interested in potentially pursuing litigation against the entities listed above, please contact Cohen Milstein.

The attorney overseeing this case investigation is Andrew N. Friedman, Co-Chair of Cohen Milstein’s Consumer Protection practice.

Shireen Hamdan, Paralegal – shamdan@cohenmilstein.com


Cohen Milstein Sellers & Toll PLLC

1100 New York Avenue, N.W.

Suite 500, West Tower

Washington, D.C. 20005

Tel: (888) 240-0775 or (202) 408-4600

Fax: (202) 408-4699

Cohen Milstein’s Consumer Protection has significant experience in prosecuting data breach and consumer class actions. We have received numerous accolades for consumer and data breach litigation work:

  • Law360, "Practice Group of the Year – Consumer Protection” (2018)
  • The National Law Journal, “Winner – Elite Trial Lawyers – Consumer” (2018)
  • Law360, “Practice Group of the Year – Privacy” (2017)
  • Law360, “Practice Group of the Year – Class Action” (2017)

Our primary objective is to protect consumer rights through class actions under federal and state laws, bringing a full measure of justice and benefits to millions of consumers, while holding responsible parties accountable.

Previous results do not guarantee a similar outcome.