About Us


Liles Parker is a DC-based Law Firm Primarily Representing Health Care Providers and Suppliers Nationwide in Medicare, Medicaid and Private Payor Audits, Investigations & Revocation Actions. Our team includes attorneys who are former Federal Prosecutors, Certified Billers, Coders, and Compliance Officers. (Health Care Providers  - Please sign up or call us (202-298-8750) for a Free Initial Consultation).

At Liles Parker, we understand that extraordinary legal representation begins with talented, committed, health care attorneys. Over the years, Liles Parker attorneys have been recognized for their work in a variety of areas, including corporate governance, business transactions, Medicare, Medicaid and private payor overpayment audits and appeals and civil and criminal litigation.

Our health care attorneys apply decades of focused experience and expertise in the representation of firm clients. In doing so, we have established national reputations in the areas of regulatory compliance, health care law, and corporate transactions. It is for this reason that our health care attorneys are so often asked to speak at national conferences on a wide variety of topics.

Our philosophy is simple — your success is our success. We will always work aggressively to safeguard your financial interests and your personal liberty. We strive to provide quality, innovative, representation in as cost-effective a manner as possible.

Martindale-Hubbell has rated our firm as "AV." This honor is "limited to only the most distinguished law practices; those that have achieved the AV rating. The 'A' signifies the highest level of legal ability, while the 'V' denotes 'very high' adherence to professional standards of conduct, ethics, reliability, and diligence."

Our Attorneys

Robert W. Liles,  (Washington, DC) - Mr. Liles has extensive experience representing health care providers and suppliers around the country in coding, billing and compliance related matters. He is a nationally-recognized speaker and has presented at literally hundreds of state, regional and national health care conferences. In addition to a law degree, he also holds a Master's in Hospital Administration and a Master's in Business Administration. Robert teaches and is the author of the "Certified Medical Compliance Officer" (CMCO) course, a comprehensive live program specifically designed to train non-hospital Compliance Officers. Robert also serves as Compliance Counsel for the American Medical Billing Association, a respected national third-party billing organization, and for the American Association of Clinical Endocrinologists. Previously, and shortly after the passage of the Health Insurance Portability and Accountability Act of 1996 (HIPAA), Robert was asked to serve as the first National Health Care Fraud Coordinator and was later promoted to the position ofDeputy Director, Legal Programs, for the Executive Office for U.S. Attorneys (EOUSA), a component of the United States Department of Justice (DOJ). Robert has been rated "AV" by Martindale-Hubbell for over 15 years. Additionally, he has been rated "Superb," achieving a score of "10 out of 10" by AVVO, an attorney rating service.

Jennifer Papapanagiotou, (Houston, TX) - Ms. Papapanagiotou focuses her practice on transactional, corporate and regulatory matters for healthcare providers, including physicians, hospitals, home health agencies, hospice providers, mental health professionals, durable medical equipment companies, health care management and billing companies. She handles health care business transactions, Stark and Anti-Kickback analyses, and health care corporate governance and compliance. Jennifer has extensive experience representing physicians and advising them on changes to their practice. She also supplies substantive support for healthcare investigations and litigation. Her work has included representing hospitals, skilled nursing facilities, physicians and others being investigated for potential violations of federal and state healthcare laws and professional licensing laws. She also serves as a healthcare subject matter expert in representation of clients being sued over alleged violations of contractual relationships.

Michael Cook: (Washington, DC) - Michael Cook has more than 35 years of experience representing a wide variety of health care related clients in regulatory, compliance, coverage, reimbursement, policy, strategic planning, government relations, and business matters. Michael began his career representing the Federal regulators of the Medicare and Medicaid programs as an attorney with the Office of General Counsel of the United States Department of Health and Human Services – often on significant matters of the highest profile and sensitivity, and during his tenure at the Department, as a Special United States Attorney for the Northern District of Illinois. He has extensive experience representing clients before the U.S. Department of Health and Human Services and numerous State agencies. Mike has been rated "AV" by Martindale-Hubbell for over 15 years, the highest rating which can be awarded by this attorney rating service.

Leonard Schneider (Houston, TX) - and the Supervising Attorney of our Houston Office, is a former Galveston County prosecutor. He represents cities and towns across Texas, serving as City Attorney. He also represents health care providers around the country in litigation. In addition to practicing law, he has authored and presented papers on corporate law issues, landlord/tenant arrangements, evictions, economic development, and city council meetings. He also currently instructs business students on ethics and business law as an adjunct professor at two universities.

Andy Lynch, (Washington, DC) - Andy Lynch has more than 20 years experience as a transactional lawyer representing corporations and financial institutions in business and commercial matters. He has significant experience representing buyers and sellers in mergers and acquisitions and in representing issuers and investors in capital formation transactions. Andy has worked extensively in the telecommunications, internet, technology, real estate, health care and government contracting industries. In addition to the clients he represents at Liles Parker, Andy currently acts as outside general counsel for a number of clients and was previously the general counsel of a telecommunications company. Andy's corporate expertise also extends to the health care arena, where he is adept at counseling health care providers on proposed complex transactions.

Les Johnson (Baton Rouge, LA) - Mr. Johnson serves as the Supervising Attorney of our Baton Rouge office. Les handles a wide variety of health care matters and Medicare appeals, both overpayment and PRRB. He holds an LL.M. in Health Law & Policy from the Beazley Institute for Health Law & Policy in Chicago, and serves as compliance officer for a series of family businesses including a skilled nursing facility, rehabilitation center, hospice, and an inpatient detox facility. The majority of Les's practice is devoted to health care regulatory compliance, fraud & abuse, and Medicare appeals.

Ismail Laher, (Washington, DC) - Mr. Laher is a former Jones Day Attorney and a Graduate of both Harvard Business School and Georgetown University Law School. Over the years, Mr. Laher has evolved into being a Trusted Adviser to a wide spectrum of clients.  International Businesses & Individuals call upon him as their point of first contact into the United States to better understand their various legal & strategic options here.  Health Care Providers call upon him to assist them with investigations, compliance plans and related issues.  Employers and Individual Clients also call upon him to represent and guide them with their corporate, family, personal, (executive coaching) needs.

Regina Morano - Ms. Morano focuses her practice on regulatory compliance matters involving hospitals, physician practices, laboratory and interventional pain providers, workers compensation regulations, and strategic implementation of corporate integrity agreements for healthcare providers who have been subject to government enforcement. She has been certified in healthcare compliance since 2007.

Heidi Kocher, (Dallas, TX) - Ms. Kocher has 20 years of experience in health care legal and compliance related issues. Her experience includes positions at a large hospital corporation, serving as a compliance officer for a sleep lab/DME company and a compliance director, chief privacy officer and interim chief compliance officer at a medical device manufacturer. In addition, she has represented and advised critical access and long-term care hospitals, physician groups, home health agencies, DME companies, pharmacies (including compounding pharmacies), non-profit organizations, and licensed individuals

John Pierce, (Washington DC) - A trial attorney whose practice focuses on sophisticated criminal defense and civil litigation, Mr. Pierce represents individuals and organizations – foreign and domestic – under investigation or prosecution by the US government and foreign countries. He also prosecutes claims for whistleblowers and victims of fraud perpetrated by corporations and financial institutions, and fights for clients involved in healthcare, commercial, securities, corruption, export control, and tax disputes.

David P. Parker - Mr. Parker served as General Counsel for an NYSE-traded corporation.  Mr. Parker represents companies in complex corporate transactions (such as the buying and selling of an enterprise).  In addition, David regularly represents health care clients in administrative appeals and in compliance related matters.

Paul Weidenfeld - Co-Counsel - Mr. Weidenfeld has represented health care organizations and providers involved with both civil and criminal matters, trying over 75 separate cases throughout his tenure as a litigator.   Paul has extensive experience and expertise working on False Claims Act matters and cases.  While a Federal Prosecutor, he served as "National Health Care Fraud Coordinator" for the U.S. Department of Justice's, Executive Office for U.S. Attorneys.  Paul has been rated "AV" by Martindale-Hubbell, the highest rating which can be awarded by this nationally-recognized attorney rating service.