One Beacon Street
Suite 1320
Boston, MA 02108

T 617.720.5090
F 617.720.5092


One Cedar Street
Suite 300
Providence, RI 02903
T 401.454.0400
F 401.454.0404

Callan Stein

Practice Area: Litigation, Corporate

Callan Stein is a partner in Donoghue Barrett & Singal’s Litigation group, where he focuses on white-collar criminal defense, corporate and commercial civil litigation, healthcare litigation, professional licensing matters, and research misconduct cases. He has practiced in federal, Massachusetts, and Rhode Island courts, and before state and federal governmental administrative agencies.

In his white-collar criminal practice Cal regularly represents corporations and small businesses, corporate officers and directors, governmental and public employees, and other individuals accused of, or being investigated for, alleged white-collar crimes including state and federal False Claims Act violations, securities, banking, insurance and tax fraud, mail and wire fraud, violations of food and drug laws, and environmental violations. In his civil litigation practice Cal represents small and large businesses in general corporate matters and in active litigation involving contract disputes, business torts, alleged violations of ch. 93A, regulatory violations, and employment cases involving wrongful discharge, retaliation, discrimination, and violations of state and federal whistleblower laws. Cal also represents physicians, dentists, physician assistants, nurses, attorneys, CPAs, and other licensed professionals facing disciplinary or other charges before professional licensing boards, as well as scientists, medical researchers, and other academics in research misconduct cases.

Cal also focuses his practice on the growing area of healthcare litigation. He represents healthcare providers charged with, or being investigated for, violations of the False Claims ActAnti-Kickback Statutes, HIPAA, and the Stark Act, as well as those accused of Medicare and Medicaid fraud such as up-coding, unbundling, rendering medically unnecessary services, or other billing irregularities. Cal also represents healthcare providers, practices, and medical staffs involved in third-party payor disputes, utilization review management issues, and medical staff credentialing issues. Cal has experience representing healthcare providers and employers in employment-related litigation including cases involving state and federal healthcare whistleblower allegations, credentialing disputes, and provider disciplinary matters.

Awards & recognitions

Massachusetts Super Lawyers Rising Star, 2014-2016
Massachusetts Lawyers Weekly Up & Coming Attorney, 2013


Boston University School of Law, J.D., 2007
Brandeis University, B.A., cum laude, with honors, 2004

Court / Bar Admissions

Rhode Island
U.S. District Court for the District of Massachusetts

Publications & Presentations

Getting Down To The Details: Contract Basics for Non-Lawyers 10 November 2015 (Presentation)
8 things you might not know about research misconduct proceedings: Guest post, 13 August 2015
The Massachusetts Earned Sick Time Law: What Every Employer Needs to Know, 19 June 2015


Boston Bar Association
Massachusetts Bar Association

Service Areas

White-Collar Criminal; Civil Litigation; Healthcare Litigation; Business Torts; Contract Disputes; Commercial Litigation; Unfair and Deceptive Trade Practices (Ch. 93A); Pharma/Healthcare Fraud; Medicare/Medicaid Fraud; Mail and Wire Fraud; Employment Disputes/Discrimination/Retaliation; Whistleblower Litigation; Professional Licensing and Disciplinary; Research Misconduct; Public/Quasi-Public Authority Representation; Securities/Banking/Mortgage/Tax Fraud; Public Corruption; Environmental Violations; Corporate


Corporations; Small Businesses; Healthcare Providers; Hospitals/Nursing Homes/Medical Practices; Physicians/Dentists/Physician Assistants/Nurses; Managed Care; Professional Services (Attorneys, CPAs, Engineers); Government Contractors/Public Officials; Scientists/Medical Researchers; Biomedical/Life Sciences; Non-Profit; Education; Financial Services; Pharmacies/Pharmacists; Public Authorities; Quasi-Public Agencies; Retail; Securities; Technology

Civic & Charitable Activities

Cal is involved with the Boston University School of Law Career Development Office mentoring program and enjoys volunteering as a judge for several of the school’s moot court programs. He also previously coached high school football and baseball in Brookline, MA.

Off the Record...

When Cal was 15 he landed his first job selling sneakers at City Sports. He is still in touch with his manager today.

  • The Super Lawyers list is issued by Thomson Reuters. A description of the selection methodology can be found at here. No aspect of this advertisement has been approved by the Supreme Judicial Court of Massachusetts.

representative matters

  • Obtained summary judgment in favor of a quasi-public organization and a former director in a multi-million dollar contract and business tort lawsuit brought by a former vendor
  • Obtained summary judgment in favor of a hospital and the chief of its medical staff in a lawsuit brought by a previously-dismissed physician alleging improper termination
  • Won a landmark federal lawsuit against the U.S. Government (HHS) to overturn a debarment order based on findings of research misconduct and remand the case for the first administrative hearing on research misconduct charges since 2005
  • Won motion to dismiss a breach of privacy lawsuit brought by a patient against her treating hospital for allegedly disseminating confidential medical information
  • Obtained dismissal of a high-profile civil lawsuit brought against a former high-ranking state employee alleging public corruption and political affiliation discrimination
  • Part of a trial team that won a favorable verdict for a multi-million dollar corporation and its chairman and CEO against a former employee who alleged he was entitled to a stake in the business worth tens of millions of dollars
  • Successfully defended a company providing utilization review services to a health insurance plan against a lawsuit alleging the improper denial of members claims as not medically necessary. Obtained a non-criminal resolution of state dental insurance fraud charges brought against a dentist and her dental practice by the state Attorney General’s Office
  • Successfully defended a hospital and several senior employees against a former employee’s federal whistleblower and wrongful discharge allegations by reaching a favorable negotiated resolution.
  • Obtained a civil settlement in excess of one million dollars for a commercial landlord in a beach of lease lawsuit
  • Represented numerous researchers accused of research misconduct before institutional inquiries and investigations, and before the federal Office of Research Integrity.
  • Recovered damages on behalf of a hospital medical group against a former member-physician who breached his employment agreement
  • Performed general corporate legal services for several small business including drafting Shareholder/Operating Agreements, drafting employee handbooks developing other policies, advising human resources personnel on best practices, and representing the businesses before various state agencies.
  • Obtained dismissal of a breach of contract lawsuit brought by a doctor against his former medical practice
  • Successfully defended a senior employee of an investment company against SEC allegations that he violated the Securities Act and the Exchange Act by engaging in a scheme to defraud investors, and further represented that individual in subsequent related state court civil proceedings
  • Negotiated a non-criminal disposition for a former municipal employee charged with multiple criminal violations of state environmental regulations by the state Attorney General’s Office
  • Obtained dismissal of a civil class action suit against a former director of a large corporation brought by a class of former employees
  • Performed general corporate legal services for small business including drafting Shareholder/Operating Agreements, drafting employee handbooks and developing other policies, and advising human resources personnel on best practices



bio pdf

“Thank you for giving me my life back.”
–Acquitted client

Callan Stein

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