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Mark L. Mattioli utilizes his twenty plus years of experience in the health care industry to assist a wide variety of health care entities including hospitals, physicians, Long Term Care Providers, Home Health, Dialysis, DME, Clinical Labs, medical device manufacturers, and insurers in navigating and solving complex issues. He provides regulatory, transactional and compliance guidance in areas such as antitrust, health care reform, managed care contracting, reimbursement, fraud and abuse (Stark and anti-kickback), health information privacy and security medical staff credentialing, licensing, change of ownership, and payer audits.

Mark routinely advises hospitals, health care systems and providers regarding government audits, government payment programs, medical staff issues and privacy and data security matters.

He also is an experienced health care litigator and has wide-ranging experience litigating numerous cases involving health care entities in antitrust, False Claims Act, breach of privacy, and commercial disputes with other providers where he has litigated cases throughout the nation, including Pennsylvania, New Jersey, Maryland, Delaware, Florida, Kansas, New Hampshire, Maine, North Carolina, Kentucky, Vermont and Missouri,

Mark also advises hospitals, health care providers and health plan clients regarding health and information privacy and security under HITECH and HIPAA, governmental investigations, development of joint ventures, provider contracting issues and medical staff bylaw and disciplinary issues. Mark proactively counsels clients as they confront inquiries, audits and investigations from governmental agencies, including the Department of Justice, Office of Inspector General and the Department of Health and Human Services.

He has written extensively on the topics of antitrust, fraud and abuse, and medical staff credentialing.


  • Health law
  • Antitrust compliance
  • Privacy and data security
  • Trade secret
  • Commercial litigation
  • Healthcare Compliance
  • HIPAA/HITECH Consulting and Response
  • Anti-Kickback Statutes and the federal Stark Law



  • Represented an affiliate of H.I.G. Growth Partners in connection with its acquisition of Livi Medical Services, PLLC and Phoenician Hospice, PLLC, regional providers of family medicine and hospice services.
  • Represented Centre Partners in connection with its acquisition of the IMA Group, a national provider of medical and psychological evaluations and case review services.
  • Represented Blue Wolf Capital Partners in connection with the acquisition of Hospicelink, the largest hospice-focused durable medical equipment benefit manager in the United States.
  • Assisted multiple Providers in Change of Ownership Filings in Pennsylvania and New Jersey involving Assisted Living Residences, Home Care, Ambulatory Surgery Centers, etc.
  • Repressed Large Multi-Specialty Physician Group and Ambulatory Surgery Centers in False Claims Act Litigation and achieved extremely favorable result.
  • Representing National Pharmacy in False Claim Litigation involving alleged improper labeling.
  • Assisted provider in developing Joint Value-Based Venture with insurer.
  • Represented LTC Facility in CMS action and was able to negotiate significant reduction in violations.
  • Assisted National Dialysis Provider with development of education programs.
  • Counsel Major Healthcare System regarding departmental closures.
  • Counsel Physician regarding Peer Review and Privilege dispute with Hospital.
  • Assist large group with payer audit and extrapolation request.
  • Assisted Risk Retention Group in development of Patient Safety.°
  • Provided advice to Trade Group regarding Antitrust Issues on behalf of member.°
  • Health America Susquehanna Health Systems, 278 F.Supp. 2d 423 (M.D. Pa. 2003).°
  • United States Kensington Hospital, 1993 WL 21446, 1993 U.S. Dist. LEXIS 383 (E.D. Pa. 1993).°
  • Gordon Lewistown Hosp., 714 A.2d 539 (Pa. Commw. Ct. 1998).°

°The above representations were handled by Mr. Mattioli prior to his joining Greenberg Traurig, LLP.

Recognition & Leadership

  • Listed, The Best Lawyers in America, Health Care Law, 2019-2023
  • Member, American Bar Association, Antitrust and Health Care Sections
  • Member, American Health Lawyers Association
    • Past Vice-Chair, Antitrust Practice Group, 2010
  • Member, Aircraft Owners & Pilot's Association
  • Member, Experimental Aircraft Association and International Aerobatic Club


  • J.D., magna cum laude, Temple University Beasley School of Law
    • Member and Symposium Editor, Temple Law Review
  • B.S., magna cum laude, Drexel University
  • Pennsylvania
  • New Jersey