
Cassie’s practice primarily involves advising health care clients on transactional and regulatory matters, including serving as regulatory counsel on health care transactions and assisting clients in establishing and implementing MSO-PC arrangements. She frequently oversees the health care regulatory aspects of complex transactions in the health care industry, including recent private equity investments in pediatric, dental, ambulatory surgery, and addiction treatment providers. She has also served as regulatory counsel to various institutional lenders in financing transactions in connection with the acquisition of health and life science industry companies. Cassie regularly acts as a subject matter expert, advising clients on HIPAA/privacy compliance, telehealth and other digital health matters, corporate practice issues, professional and facility licensing, determinations of need/certificates of need, and Medicare and Medicaid compliance. Cassie also has experience advising non-profit organizations on matters related to formation and corporate governance.
Throughout her career, Cassie has worked with providers, payors, individual patients, and a range of investors in the health care space, so she understands the unique challenges facing clients in the ever-changing health care landscape. She enjoys working with interdisciplinary teams to come up with creative solutions to her clients’ problems.
Prior to joining Mintz, Cassie worked as in-house counsel at a national senior living company. There she advised the business on matters related to state and federal health care regulations, physician arrangements, reimbursement, fraud and abuse, and HIPAA/privacy. Cassie’s in-house experience informs current her practice, enabling her to anticipate and relate to clients’ legal and business needs.
A member of the firm’s Pro Bono Committee, Cassie is particularly passionate about addressing health disparities, focusing on increasing access to reproductive health care and behavioral health services, including substance use disorder treatment. She currently serves on the Board of the South Boston Collaborative Center, a substance abuse and mental health treatment center located in South Boston.
viewpoints
Effective July 1, Florida Will Prohibit Offshore Storage of Health Records and Require Additional Ownership Disclosures
June 20, 2023 | Blog | By Kate Stewart, Cassandra Paolillo
A new Florida law will require certain Florida-licensed providers to ensure that patient information is physically maintained only in the continental United States and its territories or in Canada. Florida SB 264, which goes into effect July 1, 2023, amends the Florida Electronic Health Records Exchange Act, adding a ban on offshoring health information that goes beyond the requirements under HIPAA and most other generally applicable health privacy and security laws. Florida licensees to which the new requirements apply will need to attest upon initial licensure and any renewals that they are in compliance with the new requirements. Applicable licensees will also be required to ensure that no individual or entity with a controlling interest in the licensee has an interest in an entity that has a business relationship with certain foreign countries.
Telehealth Update: DEA Issues Temporary Rule on Prescribing Controlled Substances via Telehealth as the Public Health Emergency Comes to an End
May 10, 2023 | Blog | By Ellen Janos, Cassandra Paolillo
As we previously covered, in March 2023, the Drug Enforcement Agency (DEA) announced a proposed rule on prescribing controlled substances via telehealth, aimed at addressing the “telehealth cliff” that was expected to occur once the COVID-19 Public Health Emergency (PHE) ends on May 11, 2023. The proposed rule provided some flexibility, but required a much more restrictive framework for prescribing controlled substances via telehealth compared to the flexibilities available during the PHE. During the 30-day comment period following the announcement of the proposed rule, the DEA received over 38,000 comments, which the agency says it is closely reviewing. Many commentators across the health care industry criticized the proposed rule because the in-person examination requirement would limit access to care. The DEA, working with the Department of Health and Human Services, is also considering revisions to the proposed rule.
Telehealth Update: DEA Issues Long-Awaited Proposed Rule on Prescribing Controlled Substances via Telehealth
March 3, 2023 | Blog | By Ellen Janos, Cassandra Paolillo
With just over two months before the COVID-19 Public Health Emergency (PHE) expected expiration on May 11, 2023, the Drug Enforcement Agency (DEA) has finally announced its proposed rule on prescribing controlled substances via telehealth. This post provides continued coverage of telehealth updates and dissects what this DEA's proposed rule could entail.
Getting The Deal Done! Best Practices For Health Care Transactions
February 9, 2023 | Webinar
Navigating the regulatory frameworks that impact health care transactions can be challenging. These frameworks have the ability to impact multiple aspects of a transaction, including timing, structure, and valuation. Knowing how to identify and avoid these regulatory pitfalls is critical to averting these challenges that can delay or break a deal. And, ultimately, it’s what you know that can make the deal.
Telehealth Update: PHE Extended Through April 2023, But Some Key Telehealth Flexibilities Will Stick Around Longer
January 12, 2023 | Blog | By Ellen Janos, Cassandra Paolillo
The COVID-19 Public Health Emergency (PHE), which was originally declared nearly three years ago, has been renewed through April 2023. As we’ve previously covered, the PHE allowed federal and state regulators to relax certain telehealth requirements, which has led to a rapid expansion in the availability of telehealth services. The Biden Administration has committed to provide at least 60 days’ notice prior to terminating the PHE or allowing it to expire, but several news outlets are reporting that this could be the final extension.
Is Your Website Collecting PHI Under OCR's New Tracking Technologies Bulletin?
December 7, 2022 | Blog | By Dianne Bourque, Lara Compton, Kathryn Edgerton, Cassandra Paolillo, Kate Stewart
Covered Entities and Business Associates should promptly and carefully review their use of online tracking technologies on their websites and mobile apps following a bulletin (Bulletin) published by the U.S. Department of Health and Human Services’ Office for Civil Rights (OCR) last week. The Bulletin addresses multiple facets of compliance with HIPAA when using online third-party tracking technologies (Tracking Technologies). In doing so, OCR significantly expands its interpretation of the definition of Protected Health Information (PHI) to include, in some instances, identifiable information gathered by Tracking Technologies where a user visits a website and does not interact with the entity in any other way. In its Bulletin, OCR interprets the act of an individual visiting a website as evidence of a relationship or anticipated future relationship between the visitor and the entity.
Telehealth Update: Assessing PHE Flexibilities, Pending Legislation Entering Fall 2022
September 1, 2022 | Blog | By Ellen Janos, Cassandra Paolillo
Many of the flexibilities upon which telehealth providers have come to rely in recent years are tied to the federal Public Health Emergency related to the COVID-19 pandemic (PHE). As we move into Fall 2022, we review the current state of the PHE flexibilities around Medicare reimbursement and prescription of controlled substances, examine pending legislation that, if passed, would bring greater certainty to patients and providers, and discuss what we know about the status of a possible PHE extension.
Potential Pitfalls of Telehealth Prescribing
May 31, 2022 | Blog | By Lara Compton, Ellen Janos, Cassandra Paolillo
As we’ve previously covered, while Congress has acted to extend certain COVID-era telehealth flexibilities (mostly related to Medicare coverage) beyond the Public Health Emergency (PHE), the future of prescribing controlled substances via telehealth is uncertain. Although the American Telemedicine Association and other industry groups continue to advocate for changes to allow telehealth providers to prescribe controlled substances in certain circumstances, without further action by Congress or the Drug Enforcement Administration (DEA), telehealth providers who prescribe controlled substances will need to conduct an in-person examination of the patient once the PHE ends.
Telehealth Update: A Federal Appropriations Bill, A Positive OIG Report, and Good News from HHS
March 22, 2022 | Blog | By Ellen Janos, Cassandra Paolillo
Last week saw a lot of great news in the world of telehealth. On March 15, President Biden signed into law H.R. 2471, the “Consolidated Appropriations Act, 2022”, which extends many of the Medicare telehealth flexibilities put in place during the COVID-19 pandemic for a period following the end of the Public Health Emergency (“PHE”). The same day, the OIG issued a report highlighting the positive impact telehealth had on increasing access for beneficiaries during the first year of the pandemic. Then, during a press conference on March 18, HHS Secretary Xavier Becerra said that HHS will seek to sustain and expand access to telehealth services after the public health emergency ends. While these developments signal the continued expansion of telehealth, there is still some uncertainty surrounding coverage, reimbursement and licensure flexibilities that have allowed telehealth to flourish for the past two years.
Telehealth Update: New Bill Could Provide Much Needed Certainty to Providers and Patients
February 10, 2022 | Blog | By Ellen Janos, Cassandra Paolillo
News & Press
Mintz is pleased to announce that 31 attorneys have been named Massachusetts Super Lawyers and 35 attorneys have been named Massachusetts Rising Stars for 2024.
The Best Lawyers in America 2025 Recognizes 184 Mintz Attorneys across 56 Practice Areas
August 15, 2024
187 Mintz attorneys have been recognized by Best Lawyers® in the 2025 edition of The Best Lawyers in America©. Notably, three Mintz attorneys received 2025 “Lawyer of the Year” awards, and 64 firm attorneys were included in the 2025 edition of Best Lawyers: Ones to Watch.
Mintz's Natalie Groot and Cassandra Paolillo Named Up & Coming Lawyers by Massachusetts Lawyers Weekly
March 18, 2024
Mintz is pleased to share that Member Natalie Groot and Of Counsel Cassandra Paolillo have been selected by Massachusetts Lawyers Weekly as 2024 Excellence in Law ‘Up & Coming Lawyer’ honorees.
Fifty-Nine Attorneys Recognized as 2023 Massachusetts Super Lawyers and Rising Stars
October 12, 2023
Mintz is pleased to announce that 32 attorneys have been named Massachusetts Super Lawyers and 27 attorneys have been named Massachusetts Rising Stars for 2023.
Mintz is pleased to announce that 120 firm attorneys have been recognized as leaders by Best Lawyers® in the 2024 edition of The Best Lawyers in America©.
35 Mintz attorneys have been named Massachusetts Super Lawyers and 25 Mintz attorneys have been named Massachusetts Rising Stars for 2022.
Potential Pitfalls of Telehealth Prescribing
July 29, 2022
podcasts
Health Law Diagnosed – Understanding the New Massachusetts Health Care Market Review Law
March 11, 2025 | Podcast | By Bridgette Keller, Deborah Daccord, Kate Stewart, Cassandra Paolillo
Host Bridgette Keller discusses the new Massachusetts Health Care Market Review Law and what this means for health care providers, investors, and other key stakeholders. She is joined by Member Deb Daccord, Of Counsel Cassie Paolillo, and Of Counsel Kate Stewart, who share their insights on the law’s far-reaching implications.
Health Law Diagnosed — Mintz Health Law Team: Reflecting on What We Are Grateful For
February 5, 2024 | Podcast | By Bridgette Keller
As the Mintz Health Law team welcomes the beginning of 2024, many of its members take a moment to reflect on the exciting growth of the Health Law Practice, opportunities to partner with clients on complex legal issues, and the celebration of numerous milestones.
Mintz Health Law: What We Are Grateful For
January 11, 2023 | Podcast | By Bridgette Keller
Bridgette Keller speaks with the Mintz Health Law team about what they are grateful for as they look back on a year of client service, mentorship, and working together as a team.
Events & Speaking
Tracking Technologies in Health Care
Women Business Leaders of the U.S. Health Care Industry Foundation
Online Event

Telehealth: What's Next?
Women Business Leaders of the U.S. Health Care Industry Foundation (WBL) Event
Online Event

Recognition & Awards
Best Lawyers in America: Ones to Watch - Health Care Law (2024, 2025)
Massachusetts Super Lawyers Rising Stars: Health Care (2022 – 2024)
Massachusetts Lawyers Weekly: Up & Coming Lawyer (2024)
Involvement
- Member, American Health Law Association
- Member, Boston Bar Association
- Board Member, South Boston Collaborative Center
