Washington, DC
Advises on managed care regulation across commercial, Medicare Advantage, Part D, and Medicaid programs
Represents companies across the drug supply chain to negotiate complex and innovative commercial partnerships
Structures joint ventures and value-based reimbursement arrangements between health plans and providers
Leads managed care M&A and secures regulatory approvals from CMS and state agencies
Represents clients in risk adjustment investigations, qui tam actions, and coverage litigation
Jeremy Earl is a practice area leader for the firm’s Managed Care Group, where he advises health plans, healthcare providers, pharmacy benefit managers (PBMs), and administrative service providers on managed care and other health regulatory legal issues across medical and drug benefits. He is also a member of McDermott Will & Schulte’s Management Committee.
Clients turn to Jeremy for transactional matters including joint ventures, complex service agreements, and value-based reimbursement arrangements between health plans and providers. As the line between payers and providers blurs, Jeremy helps healthcare organizations launch managed care arrangements with strategic insights into marketplace dynamics and regulatory requirements.
Ranked in
Chambers USA, 2026
Ranked in
The Best Lawyers in America, 2023-2026
Ranked in
Thomson Reuters, 2024-2026
- Lead health counsel to CVS in its $69 billion acquisition of Aetna
- Lead health counsel to CVS in its $8 billion acquisition of Signify Health
- Represented Prime Therapeutics in its $1.35 billion acquisition of Magellan Rx
- Chambers USA, Healthcare, Band 5, 2026
- The Best Lawyers in America, Healthcare Law, 2023-2027
- Thomson Reuters, Stand-out Lawyer, 2024-2026
- Legal 500 US, Leading Lawyer, Healthcare: Health Insurers, 2022-2025
- American Health Lawyers Association, Pro Bono Champion, 2012-2014
- McDermott Will & Schulte Managed Care Group, practice area leader
- McDermott Will & Schulte Management Committee, member
- Duke University School of Law, JD
- University of St. Thomas, BA, summa cum laude
- California
- District of Columbia
- English
Dr. Wolfgang von Frentz
Munich
Telecommunications, media and technology matters.
Complex dispute resolution and court proceedings.
Digital business models and Industry 4.0 transformation.
Data protection, compliance and outsourcing projects.
Licensing, transactions and cross-border IT implementation.
Dr. Wolfgang von Frentz advises clients across telecommunications, media and technology, combining longstanding litigation experience with a strong transactional practice.
He is known for complex dispute resolution, representing DAX and other international companies in media, information technology, intellectual property and corporate law matters before state courts, the European Court of Justice and arbitral tribunals.
His practice also covers data protection, compliance, outsourcing, research and development and licensing agreements, as well as the implementation of IT systems that support production and sales across borders.
He serves as head of the firm’s German Telecommunications, Media and Technology practice group and as Managing Partner of the Munich office.
Band 1
Chambers Europe, TMT: Media, 2026
Leading Partner
Legal 500 EMEA, Media and Entertainment, 2026
Recognized in
Handelsblatt/Best Lawyers™, 2009-2027
- Represented a leading German TV broadcaster before the European Court of Justice on Germany’s ban on regional advertising in TV programs
- Represented a leading German advertising marketer in litigation against an ad-blocking software provider
- Represented a leading tourism company in litigation with a competition authority concerning the sale of a customer database
- Chambers Europe, Band 1 in Germany: TMT: Media, 2026
- Handelsblatt/Best Lawyers, Germany: Corporate Law, Intellectual Property Law, Litigation, Media Law, Technology Law and Telecommunications Law, 2009-2027
- JUVE Handbook of Commercial Law Firms, Leading Names: Copyright Law, 2024-2026
- Head of the German Telecommunications, Media and Technology practice group
- Managing Partner, Munich office
- University of Regensburg, Dr. jur.
- Court of Appeal, Berlin, Second State Exam
- University of Cape Town, LL.M.
- University of Regensburg, First State Exam
- Germany
- English
- German
Jon B. Dubrow
Washington, DC
Leads the defense of M&A and joint ventures before the DOJ, FTC, and international competition authorities
Counsels customers, suppliers, and competitors adversely affected by proposed transactions
Advises on antitrust litigation, including Sherman Act and Clayton Act Section 7 matters
Counsels clients on distribution issues, contracting arrangements, and other competition-related matters
Jon Dubrow is the US head of the firm’s Antitrust Group, which is ranked in the Global Competition Review Global Elite as well as Chambers, Legal 500, and Best Lawyers, among others. For over three decades, he has served as a strategic advisor to clients across a host of interrelated antitrust issues, including mergers and acquisitions (M&A), counseling, and litigation. He leads the defense of M&A and joint ventures before the US Department of Justice (DOJ), the Federal Trade Commission (FTC), and other international competition authorities and regularly assists customers, suppliers, and competitors whose interests are adversely affected by proposed transactions. He also provides counseling on distribution issues, contracting arrangements, and a wide variety of other competition-related matters.
Ranked in
Chambers USA
Recognized in
The Best Lawyers in America, Antitrust Law
Ranked in
Legal 500 US
- Obtained regulatory clearance in multiple acquisitions for major strategic/industrial public companies, including Amgen, Constellation Brands, Diageo, Medtronic, Blackboard, Lockheed Martin, Martin Marietta Materials, Premier Inc., Worthington Enterprises, and many private equity sponsors
- Obtained merger clearance in transactions collectively valued well above $25 billion for Martin Marietta Materials, including among many others its $13 billion acquisition of Lhoist North America, the acquisition of Lehigh Hanson’s West Coast operations, the sales of several cement plants, and acquisitions of scores of aggregates quarries, including the $2 billion acquisition of Bluewater Industries, the $2.7 billion acquisition of Texas Industries, and the $1.7 billion acquisition of Bluegrass Materials
- Obtained merger clearance for Constellation Brands’ multibillion-dollar acquisition of the Modelo beer business, including Corona® and other leading brands, and divestiture of a large wine portfolio to E & J Gallo
- The Best Lawyers in America, Antitrust Law, 2018-2023, 2027
- Chambers USA, 2015-2026
- JD Supra, Readers’ Choice Awards, Top Author in M&A, 2026
- Legal 500 US, 2011-2025
- Who’s Who Legal, Thought Leaders – Competition, 2024
- Super Lawyer, Washington DC, Antitrust, 2013, 2015-2022
- American Bar Association
- Antitrust Section committees (including Health Care & Pharmaceuticals, Clayton Act, Transportation & Energy, and Unilateral Conduct), member
- Public Contracts Law Section, Strategic Alliance, Subcontract, and Teaming Subcommittees, member
- University of Pennsylvania Law School, JD, cum laude, Order of the Coif
- University of Virginia, BA
- District of Columbia
- English
Thomas P. Conaghan
Washington, DC
New York – One Vanderbilt Avenue
Represents teams, owners, and investors across major US and international professional sports leagues on ownership transfers, capital raising, and M&A
Advises US and foreign-based public and private companies on M&A, joint ventures, strategic investments, and spin-offs
Handles public and private securities offerings, including IPOs
Counsels corporate boards, board committees, and executives on disclosure, SEC reporting, corporate governance, and executive compensation
Thomas (Tom) P. Conaghan is co-head of the media, entertainment & sports practice, co-head of the Capital Markets and Public Companies Practice Group, and partner-in-charge of the Corporate Group in the Washington, DC, office.
As the lead of the firm’s award-winning sports practice, Tom represents teams, owners, and investors across all major US professional sports leagues, as well as international and emerging leagues, on a broad range of matters, including ownership transfers, capital raising transactions, and mergers and acquisitions (M&A). He frequently represents clients in high-profile deals across the industry, helping drive the continued growth of McDermott’s sports practice, which was named “Practice Group of the Year” by Law360 in 2025 and ranked among the leading sports law practices in the United States by Chambers USA and Legal 500 in 2026.
Recommended for Private Equity
IFLR1000
Recognized as Legal Impact Report Honoree
Variety Magazine
Ranked in Corporate/M&A and Private Equity
Chambers USA
Sports and Entertainment
- Represented multiple participants, including Mark Stevens and Sheryl Sokoloff, in the ownership group formed by the Khosla family to acquire the Seattle Seahawks, the reigning Super Bowl Champions, in a $9.612 billion transaction, the new record for an NFL franchise
- Represented Monumental Sports & Entertainment, led by founder and chairman Ted Leonsis, and owner of the NHL’s Washington Capitals and the NBA’s Washington Wizards, in a strategic investment transaction with Arctos Partners
- Represented Aditya Mittal and the trustees of the Mittal family trusts as significant investors in the buying group led by William Chisholm to acquire the NBA’s Boston Celtics
- Represented an investor in the acquisition of the Northern California franchise of Major League Volleyball
- Legal 500 US, Recommended, 2012-2019, 2023-2025
- IFLR1000, Private Equity, 2022-2023
- Chambers USA, Corporate/M&A, Private Equity, 2019
- Variety Magazine, Legal Impact Report Honoree, 2025
- M&A Advisor, Consumer M&A Deal of the Year, for representation of Dogfish Head Brewery in its $300 million merger with the Boston Beer Company, 2019
- M&A Advisor, Consumer M&A Deal of the Year, for representation of Fila Korea and Mirae Asset Private Equity in the $1.225 billion acquisition of Acushnet Company (Titleist Golf) from Fortune Brands, Inc. (2011)
- Greater Washington, DC Board of Trade, Legal Task Force for the Greater Washington Smart Region Movement, member
- Capital Lacrosse Club, president
- Notre Dame Law School, JD, cum laude
- University of Notre Dame, BA
- District of Columbia
- Maryland
- English
- French
Jiayan Chen
Washington, DC
Jiayan Chen is an industry leader on matters relating to health data, technology and research. She represents clients on regulatory and compliance matters, commercial transactions, and investments and acquisitions that require deep knowledge of privacy, data strategies, artificial intelligence (AI) and other healthcare technologies, or research compliance. Clients turn to Jiayan for her practical, industry-informed guidance as they seek to develop, improve, deploy, or acquire solutions or businesses that harness the power of data or technology. Jiayan has extensive experience advising on investments and acquisitions in the life sciences sector, particularly with respect to businesses that conduct clinical research or offer solutions designed to accelerate research or research recruitment. Her practice includes working with patient safety organizations (PSOs) on listing applications, compliance, and strategies for appropriately creating and sharing patient safety work product.
- Counseled AI and other healthcare technology companies, healthcare providers, academic medical centers and genetics companies in identifying and implementing opportunities to leverage data, biospecimens or healthcare technology, individually or in combination, in furtherance of precision medicine, research, or quality initiatives.
- Advised genetics companies, healthcare providers, academic medical centers, life sciences companies, digital health companies, and private equity-backed research site platforms on matters involving compliance with privacy and human subject protection requirements.
- Drafted and negotiated countless agreements involving data, healthcare technology or research, including data licensing, data collaboration, AI technology licensing, other healthcare technology licensing and services, clinical trials, research collaboration, and strategic collaboration agreements.
- Chambers USA, Healthcare, 2022-2026
- Best Lawyers in America, Healthcare Law, 2023-2027
- Thomson Reuters, Stand-out Lawyer – independently rated lawyers, 2024-2026
- American Health Lawyers Association, Health Information and Technology Practice Group (former Tech Licensing and Intellectual Property Affinity Group membership vice chair and frequent speaker)
- District of Columbia Bar Association, Health Law Section, member
- University of Michigan Law School, JD
- University of Michigan, BA, with distinction
- District of Columbia
- Illinois
Eric D. Carstens
Washington, DC
Eric D. Carstens focuses his practice on state and local tax matters, assisting clients with state tax controversy, compliance and multistate planning across all states for a variety of tax types and unclaimed property. Eric engages in all forms of taxpayer advocacy, including litigation, legislative monitoring and audit defense. He works closely with several of the Firm’s taxpayer coalitions focused on specific state tax policy issues such as the taxation of digital goods and services and unclaimed property.
- Chambers USA, 2021 and 2022, Associate to Watch; Tax
- Best Lawyers: Ones to Watch in America, Tax Law, 2024–2026
- District of Columbia Courts, Capital Pro Bono Honor Roll, 2023
- Georgetown University Law Center, LLM, Taxation
- George Washington University Law School, JD
- Elon University, BA
- District of Columbia
James A. Cannatti III
Washington, DC
James A. Cannatti III advises healthcare, technology, and life sciences organizations on complex regulatory, compliance, and enforcement matters at the forefront of the evolving healthcare ecosystem. His practice spans digital health and health information technology (IT) policy, fraud and abuse compliance, and emerging regulatory risk areas, including in the diagnostics, life sciences services, research, pharmacy, and distribution space.
- Office of the National Coordinator for Health Information Technology Fabulous Partner Award, 2017
- Inspector General’s Award for Advancing Excellence and Innovation, 2014
- Inspector General’s Award for Excellence in Fighting Fraud, Waste, and Abuse, 2014
- American Health Lawyers Association
- The Ohio State University Moritz College of Law, JD, with honors
- George Washington University, BBA, magna cum laude
- District of Columbia
- Ohio
Jane Zhao
Chicago
Jane Zhao focuses her practice on estate planning and post-death estate and trust administration. She is familiar with all aspects of wealth transfer planning, including estate and gift tax, business succession and philanthropic matters. Jane works diligently with her clients to formulate estate plans to achieve their family and charitable goals while minimizing transfer tax.
Previously, Jane was an associate at PricewaterhouseCoopers LLP, where she audited alternative investment funds.
Jane is a certified public accountant.
- Best Lawyers in America, Ones to Watch, Trusts and Estates, 2021–2026
- American Bar Association, Section of Taxation Christine A. Brunswick Public Service Fellow, 2012–2014
- Chicago Bar Association Federal Taxation Committee, co-chair, 2015–2016
- Syracuse University College of Law, JD, magna cum laude
- University of Illinois at Urbana-Champaign, MS
- University of Illinois at Urbana-Champaign, BS
- Florida
- Illinois
- US Tax Court
- English
- Chinese (Mandarin)
Dr. Dirk Pohl
Munich
Dr. Dirk Pohl advises clients on international tax law, tax litigation in tax courts and the German Supreme Tax Court (Bundesfinanzhof), integrated legal, tax and organization counseling of business enterprises.
He counsels and represents major family businesses and their owners (realignment of corporate structure, domestic and foreign as well as non-profit foundation solutions, corporate disputes, and succession planning).
Dirk Pohl frequently lectures on international tax law and has written numerous articles and several books on tax issues. He is also a guest lecturer at the Bundesfinanzakademie (the federal university of the German tax administration). He heads McDermotts German Tax Practice.
Dirk Pohl advised:
- Clients in the information technology (IT), pharmaceuticals and automotive sectors on business restructuring/transfer pricing matters
- Clients in global reorganization of construction equipment manufacturer
- Various US multinationals in tax structuring of inbound investment via Luxembourg and Switzerland
- Lexology, “Thought Leader” in Germany, 2026
- Handelsblatt/Best Lawyers™, Germany: Tax Law and Litigation, 2009-2027
- JUVE Handbook of Commercial Law Firms, “Leading Name”: Tax Litigation, 2021–2026
- German Tax Law Society, appointed as a member of the Scientific Council
- Munich Bar for Attorneys at Law (Rechtsanwälte)
- Munich Bar for Tax Advisors (Steuerberater)
- University of Bonn, Dr. jur., Second State Exam
- University of Bonn, Research Associate of Prof. Dr. Josef Isensee
- University of Bonn, First State Exam
- University of Finances in Nordkirchen, Master of Fiscal Affairs
- Germany
- Certified Tax Advisor
- English
- German
Daniel N. Zucker
Chicago
Daniel N. Zucker focuses his practice on federal and state tax matters, with particular emphasis on structuring mergers and acquisitions, tax-free reorganizations, tax-free spin-offs and split-offs, and restructurings of financially troubled companies. He also advises closely held businesses on tax planning issues with a special focus on Subchapter S corporations. Daniel is co-head of the Tax Acquisitions & Restructurings practice.
- Represented Rogers Corporation (NYSE: ROG) in its $157 million acquisition of Arlon, LLC, a subsidiary of Handy & Harman Ltd. (NASDAQ: HNH)
- Represented H.I.G. Capital and its affiliated in connection with the $125 million acquisitions of Fox River Fiber Company, LLC
- Represented Comvest Partners in connection with the acquisition of McKesson Corporation’s care management business
- Best Lawyers in America, Tax Law, 2013-2026
- Turnaround & Workouts, Bankruptcy Tax Specialists in the Nation’s Major Law Firms, 2022-2025
- Super Lawyers Business Edition 2015
- American Registry 2014, named a “Best Attorney in Chicago”
- World Tax, International Tax Review 2017
- Northwestern Pritzker School of Law, JD, cum laude
- University of Minnesota, BS, with high distinction
- Illinois